WO2021167107A1 - ヒトトランスフェリンレセプター結合ペプチド - Google Patents
ヒトトランスフェリンレセプター結合ペプチド Download PDFInfo
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- WO2021167107A1 WO2021167107A1 PCT/JP2021/006709 JP2021006709W WO2021167107A1 WO 2021167107 A1 WO2021167107 A1 WO 2021167107A1 JP 2021006709 W JP2021006709 W JP 2021006709W WO 2021167107 A1 WO2021167107 A1 WO 2021167107A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
- C07K7/64—Cyclic peptides containing only normal peptide links
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/56—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule
- A61K47/59—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes
- A61K47/60—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/62—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being a protein, peptide or polyamino acid
- A61K47/64—Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/001—Preparation for luminescence or biological staining
- A61K49/0013—Luminescence
- A61K49/0017—Fluorescence in vivo
- A61K49/0019—Fluorescence in vivo characterised by the fluorescent group, e.g. oligomeric, polymeric or dendritic molecules
- A61K49/0021—Fluorescence in vivo characterised by the fluorescent group, e.g. oligomeric, polymeric or dendritic molecules the fluorescent group being a small organic molecule
- A61K49/0041—Xanthene dyes, used in vivo, e.g. administered to a mice, e.g. rhodamines, rose Bengal
- A61K49/0043—Fluorescein, used in vivo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/001—Preparation for luminescence or biological staining
- A61K49/0013—Luminescence
- A61K49/0017—Fluorescence in vivo
- A61K49/005—Fluorescence in vivo characterised by the carrier molecule carrying the fluorescent agent
- A61K49/0056—Peptides, proteins, polyamino acids
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K19/00—Hybrid peptides, i.e. peptides covalently bound to nucleic acids, or non-covalently bound protein-protein complexes
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
- C07K7/04—Linear peptides containing only normal peptide links
- C07K7/08—Linear peptides containing only normal peptide links having 12 to 20 amino acids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- the present invention relates to a peptide capable of binding to the human transferrin receptor (hTfR).
- the present invention relates to peptides capable of crossing the blood-brain barrier (BBB), peptides having directional muscle tissue, and peptides having cell permeability.
- BBB blood-brain barrier
- the present invention relates to a method of delivering an arbitrary substance into the brain or a method of delivering to muscle tissue by using these peptides.
- BBB blood-brain barrier
- the blood-brain barrier also limits the exchange of substances between the blood and the tissue fluid of the central nervous system, including the brain and spinal cord, as well as the brain. Due to the presence of the blood-brain barrier, most cells of the central nervous system maintain their biochemical homeostasis without being affected by fluctuations in the concentrations of substances such as hormones and lymphokines in the blood.
- Patent Document 1 describes a blood-brain barrier shuttle that has an affinity for the transferrin receptor and is capable of binding to the receptor.
- One invention described herein is intended to provide a novel peptide that binds to the human transferrin receptor (hTfR). Another invention further provides peptides capable of crossing the blood-brain barrier (BBB), peptides having directional muscle tissue and capable of efficiently translocating to muscle tissue, and peptides having cell permeability. The purpose is to do. Another invention aims to provide various uses of the above novel peptides.
- BBB blood-brain barrier
- Another invention aims to provide various uses of the above novel peptides.
- One invention described herein relates to a peptide that binds to a transferrin receptor.
- This peptide is the amino acid sequence set forth in SEQ ID NO: 1 (Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Ser-Cys); or 1 in the amino acid sequence set forth in SEQ ID NO: 1. It is a peptide having an amino acid sequence having substitutions, deletions, additions and / or insertions of amino acid residues of 10 or more.
- peptides that bind to the human transferrin receptor (hTfR), peptides that can cross the blood-brain barrier (BBB), and peptides that are directional to muscle tissue. , Peptides with cell permeability, etc. can be provided.
- FIG. 1 is a photograph instead of a drawing showing the results of fluorescence intensity measurement in each tissue.
- FIG. 1-2 is a photograph instead of a drawing showing the results of fluorescence intensity measurement in each tissue.
- FIG. 1-3 is a photograph instead of a drawing showing the results of fluorescence intensity measurement in each tissue.
- FIG. 2 is a photograph that replaces the drawing showing the result of fluorescence intensity measurement in the enlarged brain.
- FIG. 3 is a photograph that replaces the drawing showing the results of the mouse brain localization confirmation test (single dose).
- FIG. 4 is a photograph that replaces the drawing showing the results of the mouse brain localization confirmation test (multidose).
- FIG. 5 is a fluorescence micrograph instead of a drawing showing the transition to human breast cancer cells.
- One invention described herein relates to a peptide that binds to a transferrin receptor and is capable of crossing the blood-brain barrier.
- Transferrin receptor is a receptor that is contained in plasma and has the function of binding to transferrin, which is a protein that binds to iron ions, and taking it into cells.
- the transferrin receptor is expressed on various cells such as reticulocytes, placental trophoblast cells, and lymphocytes, and its expression in tumor cells has been suggested.
- transferrin receptor since the transferrin receptor has the property of triggering cell endocytosis by stimulating the binding of iron ions in plasma, an antibody that binds to the transferrin receptor is used as DDS to allow the substance to pass through the BBB. Research is underway.
- the human transferrin receptor is referred to as human TfR, hTfR or simply TfR.
- Peptide that binds to the transferrin receptor Bound to the transferrin receptor means that it specifically binds to the transferrin receptor.
- Affinity expressed by the equilibrium constant (KD) for dissociation of the transferase receptor and the binding peptide, is a measure of the binding strength between the transferase receptor and the antigen-binding site on the binding peptide: small KD values.
- KD equilibrium constant
- the affinity can be expressed as the affinity constant (KA), which is 1 / KD).
- affinity can be determined in a manner known per se, depending on the particular antigen of interest. ..
- Binding activity is a measure of the strength of binding between the transferrin receptor and the binding peptide. Binding activity is related to both the affinity between the transferrin receptor and its binding site on the binding peptide and the number of associated binding sites present on the binding molecule.
- transtransferase receptor Specific binding of the transtransferase receptor to the binding peptide is, for example, the surface plasmon resonance (SPR) assay, scatterd analysis and / or radioimmunoassay (RIA), enzyme-linked immunosorbent assay (EIA) and sandwich competition described herein.
- SPR surface plasmon resonance
- RIA radioimmunoassay
- EIA enzyme-linked immunosorbent assay
- sandwich competition described herein.
- Competitive binding assays such as assays can be determined in any suitable manner known in the art, including its different variants known in the art.
- the affinity of the peptide of the invention with the transtransferase is less than 100 nM, preferably less than 50 nM KD.
- BBB blood-brain barrier
- Brain-related diseases are diseases caused by some abnormality in the brain, and include, for example, central nervous system (CNS) diseases.
- CNS central nervous system
- brain-related diseases include, but are not limited to, Alzheimer's disease, Parkinson's disease, Prion's disease, Huntington's disease, Lysozome's disease, central neuropathy, central nervous system tumors including brain tumors, cerebral ischemia, diseases associated with cerebral disorders, etc. Traumatic central nervous system disorders, viral and bacterial central nervous system disorders, and psychiatric disorders such as schizophrenia and depression.
- the muscular tissue having a directivity to the muscular tissue may be any of myocardium, skeletal muscle and smooth muscle. Particularly preferred muscle tissue is myocardium or skeletal muscle. Having directivity in muscle tissue means having the property of migrating to muscle tissue in a specific and efficient manner.
- Neuromuscular disease refers to diseases that cause motor disorders such as muscle weakness due to nerve or muscle lesions such as the brain, spinal cord, and peripheral nerves.
- Examples of neuromuscular disease are, but are not limited to, spinal cerebral degeneration, muscular atrophic lateral sclerosis, severe myasthenia, muscular dystrophy, polymyopathy, hereditary myopathy, neuromuscular disease, muscular atrophy, drug-induced Myopathy, acute heart failure, chronic heart failure, myocardial infarction, chronic fatigue syndrome, mitochondrial disease, mitochondrial respiratory chain complex disorder and Gillan Valley syndrome.
- Peptides with cell permeability are known, for example, as described in Japanese Patent No. 6478632 and Japanese Patent No. 6708770 (peptide having cell permeability). Then, as shown by Examples, the peptide of the present invention binds to the transferrin receptor and is taken up into cells. Therefore, by using the peptide of the present invention or a complex thereof, the target active ingredient can be delivered into the cell, and for example, a nucleic acid drug can be delivered into the cell.
- Peptides refers to a structure in which multiple amino acids are continuous, and includes polypeptides and proteins in that sense.
- the amino acid is not only a naturally occurring amino acid (natural amino acid) in which the mRNA is translated into the peptide chain in the cell and is incorporated into the peptide chain, but also a natural amino acid that can form a part of the peptide chain by peptide bond. It also includes amino acids (unnatural amino acids) that do not exist in. Amino acids may be artificially synthesized or naturally occurring.
- a peptide having a cyclic portion formed by cyclization after synthesis also referred to as a cyclic peptide
- a peptide obtained by further chemically modifying the peptide a complex of a peptide and a substance bound to the peptide, and a peptide.
- a complex in which a substance is bound via a linker is also included in the peptide of the present invention and the complex of a peptide and a substance.
- a cyclic peptide is a peptide in which two amino acids separated from each other via one or more amino acid residues in the amino acid sequence are bound to each other, so that all or part of the peptide becomes cyclic.
- the bond type between the two amino acids is not particularly limited, but an amide bond between the carboxyl group of one amino acid and the amino group of the other amino acid, and the carboxyl group of one amino acid and the other amino acid.
- the amide bond is not limited to the one formed by the bonding of the carboxyl group of one amino acid and the amino group of the other amino acid, and is not limited to that formed by the bond of the amino group of the synthetic reaction. As a result, it may be bound by an amide bond.
- the cyclic peptide may have a linear portion as long as a part thereof forms a cyclic structure.
- amino acids may be modified due to peptide cyclization. It also includes amino acids with some such modifications. For example, there is a case where a chloroacetyl group is added to an amino acid located at the N-terminal, and the amino acid is bound to a cysteine residue in a peptide to form a cyclization. Various (natural / unnatural) amino acids to which a chloroacetyl group is added. Is also included in the amino acids of the present application.
- An unnatural amino acid is a compound other than a natural amino acid that has the characteristics of an amino acid.
- ⁇ -amino acids ⁇ -amino acids, L-amino acids
- D-amino acids also called D-type amino acids
- chemically modified amino acids such as amino acid variants and amino acid derivatives
- norleucine ⁇ - Examples include amino acids such as alanine and ornithine, which are not constituent materials of proteins in the living body.
- N-methyl amino acid, N-ethyl amino acid, D-amino acid, histidine-like amino acid, amino acid having a structure such as extra methylene or aromatic ring in the side chain, and carboxylic acid functional group amino acid in the side chain are replaced with sulfonic acid groups. Examples thereof include amino acid derivatives having a similar structure. Examples of unnatural amino acids and abbreviations herein are shown below.
- the CAS reference number or the company name of the supplier is shown in parentheses, and the synthesis example number is shown for the newly synthesized one.
- the CAS number is one in which the unnatural amino acid alone or a protective group is bonded.
- the special amino acid is not limited to these, and for example, one or more hydrogen atoms in these molecules are alkyl groups.
- Substituted structures are also special amino acids.
- the alkyl group is preferably a methyl group, an ethyl group, and more preferably a methyl group.
- amino acids having Me or N-Me- before the amino acid name indicate N-methyl amino acids unless otherwise specified.
- the N-methylated amino acid of alanine (Ala or A) is designated as MeAla, N-MeAla, MeA or N-MeA.
- Amino acid notation with a one-letter notation and a description of d in front of it indicates a D-amino acid.
- the D-amino acid of alanine (Ala or A) is indicated by da.
- Those without a CAS number or purchase destination can be purchased as general reagents.
- the following amino acids can be used for peptide synthesis by Fmoc-protecting the alphaamino group by a known method.
- the peptide of the present invention has the amino acid sequence set forth in SEQ ID NO: 1 (Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Ser-Cys); or in the amino acid sequence set forth in SEQ ID NO: 1.
- the number of amino acids substituted, deleted, added and / or inserted may be 1 or more and 10 or less, and the lower limit is 1.
- the upper limit is 10, 9, 8, 7, 6, 6, 5, 4, 3, 2, and the minimum is one.
- Such amino acid substitutions are preferably conservative amino acid substitutions.
- Conservative amino acid substation means substitution with a functionally equivalent or similar amino acid.
- Conservative amino acid substitutions in a peptide result in static changes in the amino acid sequence of the peptide.
- one or more amino acids with similar polarities act functionally equivalent, resulting in static changes in the amino acid sequence of such peptides.
- permutations within a group can be considered conservative in terms of structure and function.
- the role played by a particular amino acid residue can be determined in terms of its implications for the three-dimensional structure of the molecule containing that amino acid.
- cysteine residues can take the oxidized (disulfide) form, which is less polar than the reduced (thiol) form.
- the long aliphatic portion of the arginine side chain can constitute structurally and functionally important features.
- side chains containing aromatic rings can contribute to ion-aromatic interactions or cation-pi interactions.
- substituting amino acids with these side chains with amino acids belonging to the acidic or non-polar group may be structurally and functionally conservative.
- Residues such as proline, glycine, and cysteine (disulfide form) can have a direct effect on the conformation of the main chain and often cannot be replaced without structural distortion.
- Conservative amino acid substitutions are specific substitutions based on side chain similarity (Leninja, Biochemistry, 2nd revised edition, 1975, pp. 73-75: L. Leniner, Biochemistry, 2nd edition, as shown below. , Pp73-75, Worth Publicer, New York (1975)) and typical substitutions.
- Preferred examples of this peptide include the following groups: (I) Substitution of the first alanine residue of SEQ ID NO: 1 with an aliphatic amino acid or a methylated aliphatic amino acid; (II) Substitution of the second valine residue of SEQ ID NO: 1 with a basic amino acid residue or a methylated basic amino acid residue; (III) Substitution of the third phenylalanine residue of SEQ ID NO: 1 with an aromatic amino acid residue, a methylated aromatic amino acid residue, an amino acid residue with an aromatic ring, or an amino acid residue with a condensed ring; (IV) Substitution of the 4th valine residue of SEQ ID NO: 1 with a methylated valine residue; (V) Aromatic amino acid residue, methyl tryptophan residue, methylated aromatic amino acid residue, amino acid residue with an aromatic ring, or amino acid residue with a fused ring added to the 5th tryptophan residue of SEQ ID NO: 1.
- Non-polar amino acid group alanine (hereinafter referred to as “Ala” or simply “A”), valine (hereinafter referred to as “Val” or simply referred to as “V”), leucine (hereinafter referred to as “Leu” or simply “Leu”).
- L isoleucine (hereinafter referred to as “Ile” or simply “I”), proline (hereinafter referred to as “Pro” or simply referred to as “P”), phenylalanine (hereinafter referred to as “Phe” or simply referred to as “F”). ), Tryptophan (hereinafter referred to as “Trp” or simply “W”), methionine (hereinafter referred to as “Met” or simply referred to as “M”)
- Gly Glycine
- Ser serine
- Thr threonine
- Thr threonine
- T cysteine
- Cys cysteine
- Tyr tyrosine
- Asn Glutamine
- Acidic amino acid group aspartic acid (hereinafter referred to as "Asp” or simply “D”), glutamic acid (hereinafter referred to as “Glu” or simply referred to as “E”)
- Hydrophobic Amino Acid Group Norleucine, Met, Ala, Val, Leu, Ile
- Neutral hydrophilic amino acid group Cys, Ser, Thr, Asn, Gln
- Acidic amino acid group Asp
- Glu (4) Basic amino acid group: His, Lys, Arg
- Amino acid groups that affect the direction of the main chain Gly, Pro
- Aromatic amino acid group Trp, Tyr, Phe In each group, unnatural amino acids such as N-methylated amino acids are also included.
- a preferred example of this peptide is a peptide having the amino acid sequence set forth in SEQ ID NO: 2 (Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Arg-Arg-Tyr-MeTyr-Cys). be.
- a preferred example of this peptide is in the amino acid sequence set forth in SEQ ID NO: 2, the following groups: (I) Substitution of the first alanine residue of SEQ ID NO: 2 with an aliphatic amino acid or a methylated aliphatic amino acid; (II) Substitution of the second valine residue of SEQ ID NO: 2 with a basic amino acid residue or a methylated basic amino acid residue; (III) Substitution of the third phenylalanine residue of SEQ ID NO: 2 with an aromatic amino acid residue, a methylated aromatic amino acid residue, an amino acid residue with an aromatic ring, or an amino acid residue with a condensed ring; (IV) Substitution of the 4th valine residue of SEQ ID NO: 2 with a methylated valine residue; (V) Substitution of the fifth tryptophan residue of SEQ ID NO: 2 with an aromatic amino acid residue, a methylated aromatic amino acid residue, an amino acid residue with an aromatic ring, or an amino acid residue with a fused
- peptide A set forth in SEQ ID NO: 18 (Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Ser-Cys). Assuming that the peptide contains an amino acid sequence and has a peptide length of 10 or more and 17 or less, Peptide A, or a peptide having an amino acid sequence having substitutions, deletions, and / or insertions of 1 or more and 6 or less amino acid residues in peptide A.
- a preferred peptide in this specification is a peptide that can bind to the human transferrin receptor (hTfR) in the same manner as the above-mentioned peptide. Also preferred are peptides that are capable of crossing the blood-brain barrier (BBB), peptides that are directional to muscle tissue, or peptides that are cell permeable.
- BBB blood-brain barrier
- peptide A it may be a peptide having an amino acid sequence in which any of the amino acid residues 2, 3, 5, 8 and 10 of SEQ ID NO: 18 is substituted. "Amino acid residues have been replaced” means that a particular amino acid residue has been replaced with another potentially modified amino acid residue.
- the second amino acid residue of SEQ ID NO: 18 is valine (Val), which may be modified, or glutamic acid (Glu), which may be modified.
- the third amino acid residue of SEQ ID NO: 18 is phenylalanine (Phe), which may be modified.
- the fifth amino acid residue of SEQ ID NO: 18 is tryptophan (Trp) which may be modified.
- the eighth amino acid residue of SEQ ID NO: 18 is tyrosine, which may be modified.
- the 10th amino acid residue of SEQ ID NO: 18 may be a peptide which is isoleucine (Ile) which may be modified or valine (Val) which may be modified.
- May be modified means that known amino acid modifications and modifications may be made. Examples of modifications are N-methylation, amino acid modification having an abbreviation described later, modification (conversion) to D type, and conversion of a known amino acid to a derivative.
- This peptide preferably has a peptide length of 11 or more and 13 or less. Twice
- This peptide is more preferably a peptide having the following amino acid sequence.
- the second amino acid residue of SEQ ID NO: 18 is Val or Glu.
- the third amino acid residue of SEQ ID NO: 18 is Ph or MeF3C.
- the fifth amino acid residue of SEQ ID NO: 18 is Trp or MeTrp.
- the 8th amino acid residue of SEQ ID NO: 18 is Tyr or F4OMe.
- the 10th amino acid residue of SEQ ID NO: 18 may be a peptide of Ile or Val.
- this peptide is a peptide having the following amino acid sequence at the N-terminal of peptide A.
- the 11th amino acid residue of SEQ ID NO: 18 is Ser or His.
- the 12th amino acid residue of SEQ ID NO: 18 may be a peptide of Cys or Hgl.
- peptide B the first to tenth of SEQ ID NO: 15 (Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Val-Pro-Arg-Asp-Cys). Assuming that the peptide contains the amino acid sequence described in the second order and has a peptide length of 10 or more and 19 or less. Peptide B, or a peptide having an amino acid sequence having substitutions, deletions, and / or insertions of 1 or more and 5 or less amino acid residues in peptide B.
- Peptide B may be a peptide having an amino acid sequence in which any of the amino acid residues 2, 3, 5, 8 and 10 of SEQ ID NO: 15 is substituted.
- the second amino acid residue of SEQ ID NO: 15 is valine (Val), which may be modified, or glutamic acid (Glu), which may be modified.
- the third amino acid residue of SEQ ID NO: 15 is phenylalanine (Phe) or tryptophan (Trp), which may be modified.
- the fifth amino acid residue of SEQ ID NO: 15 is tryptophan (Trp) which may be modified.
- the eighth amino acid residue of SEQ ID NO: 15 is tyrosine, which may be modified.
- the 10th amino acid residue of SEQ ID NO: 15 may be a peptide which is isoleucine (Ile) which may be modified or valine (Val) which may be modified.
- These peptides may have a peptide length of 13 or more and 15 or less. Twice
- This peptide is more preferably a peptide having the following amino acid sequence.
- the second amino acid residue of SEQ ID NO: 15 is Val or Glu.
- the third amino acid residue of SEQ ID NO: 15 is Ph, Trp or MeF3C.
- the fifth amino acid residue of SEQ ID NO: 15 is Trp or MeTrp.
- the eighth amino acid residue of SEQ ID NO: 15 is Tyr, Phe or F4OMe.
- a peptide in which the 10th amino acid residue of SEQ ID NO: 15 is Ile or Val may be used.
- this peptide is a peptide having the following amino acid sequence at the N-terminal of peptide B.
- the 11th amino acid residue of SEQ ID NO: 15 is Ph.
- the 12th amino acid residue of SEQ ID NO: 15 is Arg.
- the 13th amino acid residue of SEQ ID NO: 15 is Glu, Asn, Asp, His, Gln or MeTrp.
- the 14th amino acid residue of SEQ ID NO: 15 may be a peptide of Cys.
- peptide C is the first of SEQ ID NO: 214 (MeA-Val-MeF3C-Val-MeW-Asn-Tyr-F4OMe-Ile-Ile-Arg-Arg-Phe-MeY-Cys). Assuming that the peptide contains the amino acid sequence described in the 10th position and has a peptide length of 11 or more and 19 or less. Peptide C, or a peptide having an amino acid sequence having substitutions, deletions, and / or insertions of 1 or more and 5 or less amino acid residues in peptide C.
- Peptide C may be a peptide having an amino acid sequence in which any of the amino acid residues 1, 3, 5, and 8 of SEQ ID NO: 214 is substituted.
- the first amino acid residue of SEQ ID NO: 214 is alanine (Ala) which may be modified or glutamic acid (Glu) which may be modified.
- the third amino acid residue of SEQ ID NO: 214 is phenylalanine (Phe), which may be modified.
- the fifth amino acid residue of SEQ ID NO: 214 is tryptophan (Trp) which may be modified.
- the eighth amino acid residue of SEQ ID NO: 214 may be a peptide which is phenylalanine (Phe) which may be modified.
- These peptides preferably have a peptide length of 15 or more and 18 or less. Twice
- This peptide is more preferably a peptide having the following amino acid sequence.
- the first amino acid residue of SEQ ID NO: 214 is Ala, Aib, Abu, Glu, Gly, Ser, Phe, Pro or MeA, particularly preferably Ala or MeA.
- the third amino acid residue of SEQ ID NO: 214 is Phe, F3C, F2C, F2OMe, F4C, Cha, MeF, MeF35dC, MeF4F, MeF4Ome, MeNal1, Me3Py, Me4Py, Me3OMe, MeF3COO, Me3CO, MeF3COO MeF3C, particularly preferably Ph, MeF or MeF3C.
- the fifth amino acid residue of SEQ ID NO: 214 is Trp, MeW, aMeW, dp, F3C, F3F, F3OMe, F4C, F4F, Hph, MemBph, MeNal1, MeNal2, MeoBph, W4OMe, W1Et, W1Et7Cl, W1P.
- the 8th amino acid residue of SEQ ID NO: 214 is Phe, Tyr, Type, Ahp, MeY, F4OMe, 3Imp, 4Py, 3Py, 3Py6OMe, F3C, F3CON, F4C, F4aao, F4F, F4OEt, MeF34dOME, Ye It may be a peptide of Orn, or Nal1, and particularly preferably Tyr or F4OMe.
- this peptide is a peptide having the following amino acid sequence at the N-terminal of peptide C.
- the 11th amino acid residue of SEQ ID NO: 214 is Arg, Ala, Asp, Gly, Glu, Lys, MeK, MeR, Dap, Dap, Abu, Aib, Hly, donn, aMeK, A1Me4pip, KCOpipezMe, F4G, Nle, Nva or Orn, particularly preferably Lys or Arg.
- the 12th amino acid residue of SEQ ID NO: 214 is Lys, Arg, dr, Tyr, F4G, Orn, Hly, da, Cit, Dap or Dab, particularly preferably Lys, Arg or dr.
- the 13th amino acid residue of SEQ ID NO: 214 is Ala, Ph, Asn, Tyr, or pHPeG, particularly preferably Ph or Tyr.
- the 14th amino acid residue of SEQ ID NO: 214 is MeTyr, Tyr, Phe, Ala, aMeY, Glu, Gly, Arg, Val, MeoBphMeBph ,, MeF, MemBph, MeNal1, MeNal2, MeoBph, MeW or pHPeG, in particular. Ph or MeW,
- the 15th amino acid residue of SEQ ID NO: 214 may be a peptide of Cys or Hgl.
- peptide D is peptide D, the first of SEQ ID NO: 219 (Ala-Glu-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Arg-Arg-Tyr-MeY-Cys). Assuming that the peptide contains the amino acid sequence described in the 10th position and has a peptide length of 11 or more and 19 or less. Peptide D, or a peptide having an amino acid sequence having substitutions, deletions, and / or insertions of 1 or more and 5 or less amino acid residues in peptide D.
- Peptide D may be a peptide having an amino acid sequence in which any of the amino acid residues 2, 3, 5, 8 and 10 of SEQ ID NO: 219 is substituted.
- the second amino acid residue of SEQ ID NO: 219 may be modified valine (Val), modified glutamic acid (Glu), modified arginine (Arg), or modified.
- the third amino acid residue of SEQ ID NO: 219 is phenylalanine (Phe), which may be modified.
- the fifth amino acid residue of SEQ ID NO: 219 is tryptophan (Trp) which may be modified.
- the eighth amino acid residue of SEQ ID NO: 219 is tyrosine, which may be modified.
- the 10th amino acid residue of SEQ ID NO: 219 may be a peptide which is isoleucine (Ile) which may be modified, glutamic acid (Glu) which may be modified, or lysine (Lys) which may be modified.
- Ile isoleucine
- Glu glutamic acid
- Lys lysine
- These peptides preferably have a peptide length of 15 or more and 18 or less.
- This peptide is more preferably a peptide having the following amino acid sequence.
- the second amino acid residue of SEQ ID NO: 219 is Val, Glu, Ala, Arg, Lys, Asp, Phe, Dap, Har, Abu, Nva, AcPr, AtbAhp or Hgl, particularly preferably Gln or Val.
- the third amino acid residue of SEQ ID NO: 219 is Ph, F3C, F2C, F2OMe, F4C, Cha, MeF, MeF35dC, MeF4F, MeF4Ome, MeNal1, Me3Py, Me4Py, Me3COMe, Me.
- MeF3F Glu, Epyrl2RCOO, Dpyrl2RCOO or MeF3C, particularly preferably Phe, MeF or MeF3C.
- the fifth amino acid residue of SEQ ID NO: 219 is Trp, MeW, aMeW, dp, F3C, F3F, F3OMe, F4C, F4F, Hph, MemBph, MeNal1, MeNal2, MeoBph, W4OMe, W1Et, W1Et7Cl, W1 W1Pr, W5C, W5F, W1aa, W1EtOH, W4OMe, W1mCON or W6F, and particularly preferably Trp and MeW.
- the 8th amino acid residue of SEQ ID NO: 219 is Phe, Tyr, Type, Ahp, MeY, F4OMe, 3Imp, 4Py, 3Py, 3Py6OMe, F3C, F3CON, F4C, F4aao, F4F, F4OEt, MeF34dOME, Ya Orn, or Nal1, particularly preferably Tyr or F4OMe.
- the 10th amino acid residue of SEQ ID NO: 219 is Ala, Abu, Accr, Ahp, Aib, alI, alT, Atb, Dab, Dap, dorn, Gln, Hly, Ile, Lys, KCOpipezMe, Leu, Nle, Nva, It may be a peptide of Pro, Arg, Ser, Thr, Tbg, Val or Tyr, and particularly preferably Ile or alI.
- this peptide is a peptide having the following amino acid sequence at the N-terminal of peptide C.
- the 11th amino acid residue of SEQ ID NO: 219 is Arg, Ala, Asp, Gly, Glu, Lys, MeK, MeR, Dap, Dap, Abu, Aib, Hly, donn, aMeK, A1Me4pip, KCOpipezMe, F4G, Nle, Nva or Orn, particularly preferably Lys or Arg.
- the 12th amino acid residue of SEQ ID NO: 219 is Lys, Arg, dr, Tyr, F4G, Orn, Hly, da, Cit, Dap or Dab, and particularly preferably Lys, Arg or dr.
- the 13th amino acid residue of SEQ ID NO: 219 is Ala, Ph, Asn, Tyr, or pHPeG, particularly preferably Ph or Tyr.
- the 14th amino acid residue of SEQ ID NO: 219 is MeTyr, Tyr, Phe, Ala, aMeY, Glu, Gly, Arg, Val, MeoBphMeBph ,, MeF, MemBph, MeNal1, MeNal2, MeoBph, MeW or pHPeG, in particular. Ph or MeW,
- the 15th amino acid residue of SEQ ID NO: 219 may be a peptide of Cys or Hgl.
- peptide E Another preferred example of this peptide is peptide E, first of SEQ ID NO: 296 (Ala-Val-MeF-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Arg-Arg-Tyr-MeY-Cys). Assuming that the peptide contains the amino acid sequence described in the 15th position and has a peptide length of 15 or more and 18 or less. Peptide E, or a peptide having an amino acid sequence having substitutions, deletions, and / or insertions of 1 or more and 5 or less amino acid residues in peptide E.
- Peptide E may be a peptide having an amino acid sequence in which any of the amino acid residues 3, 5, 7, 8, 11, 12, and 13 of SEQ ID NO: 296 is substituted.
- the third amino acid residue of SEQ ID NO: 296 is phenylalanine (Phe), which may be modified.
- the fifth amino acid residue of SEQ ID NO: 296 is tryptophan (Trp) which may be modified.
- the seventh amino acid residue of SEQ ID NO: 296 is tyrosine, which may be modified.
- the eighth amino acid residue of SEQ ID NO: 296 is tyrosine, which may be modified.
- the 11th amino acid residue of SEQ ID NO: 296 is arginine (Arg) which may be modified or alanine (Ala) which may be modified.
- the 12th amino acid residue of SEQ ID NO: 296 is arginine (Arg) which may be modified or lysine (Lys) which may be modified.
- the 13th amino acid residue of SEQ ID NO: 296 may be a peptide in which either tyrosine (Tyr) may be modified or phenylalanine (Phe) may be modified.
- the third amino acid residue of SEQ ID NO: 296 is Ph, F3C, F2C, F2OMe, F4C, Cha, MeF, MeF35dC, MeF4F, MeF4Ome, MeNal1, Me3Py, Me4Py, Me3COMe, Me. MeF3F, Glu, Epyrl2RCOO, Dpyrl2RCOO or MeF3C, particularly preferably Phe, MeF or MeF3C.
- the fifth amino acid residue of SEQ ID NO: 296 is Trp, MeW, aMeW, dp, F3C, F3F, F3OMe, F4C, F4F, Hph, MemBph, MeNal1, MeNal2, MeoBph, W4OMe, W1Et, W1Et7Cl, W1 W1Pr, W5C, W5F, W1aa, W1EtOH, W4OMe, W1mCON or W6F, and particularly preferably Trp and MeW.
- the 7th amino acid residue of SEQ ID NO: 296 is Tyr, 3Py6OMe, Ala, Ahp, Phe, F3H, F4C, Nal1, Arg or Trp, particularly preferably Tyr.
- the 8th amino acid residue of SEQ ID NO: 296 is Phe, Tyr, Type, Ahp, MeY, F4OMe, 3Imp, 4Py, 3Py, 3Py6OMe, F3C, F3CON, F4C, F4aao, F4F, F4OEt, MeF34dOME, Ya Orn, or Nal1, particularly preferably Tyr or F4OMe.
- the 11th amino acid residue of SEQ ID NO: 296 is Arg, Ala, Asp, Gly, Glu, Lys, MeK, MeR, Dap, Dap, Abu, Aib, Hly, donn, aMeK, A1Me4pip, KCOpipezMe, F4G, Nle, Nva or Orn, particularly preferably Lys or Arg.
- the 12th amino acid residue of SEQ ID NO: 296 is Lys, Arg, dr, Tyr, F4G, Orn, Hly, da, Cit, Dap or Dab, and particularly preferably Lys, Arg or dr.
- the 13th amino acid residue of SEQ ID NO: 296 may be Ala, Phe, Asn, Tyr, or pHPeG, and particularly preferably a peptide of Phe or Tyr.
- this peptide is a peptide having the following amino acid sequence at the N-terminal of peptide C.
- the 11th amino acid residue of SEQ ID NO: 296 is Arg, Ala, Asp, Gly, Glu, Lys, MeK, MeR, Dap, Dap, Abu, Aib, Hly, donn, aMeK, A1Me4pip, KCOpipezMe, F4G, Nle, Nva or Orn, particularly preferably Lys or Arg.
- the 12th amino acid residue of SEQ ID NO: 296 is Lys, Arg, dr, Tyr, F4G, Orn, Hly, da, Cit, Dap or Dab, and particularly preferably Lys, Arg or dr.
- the 13th amino acid residue of SEQ ID NO: 296 is Ala, Ph, Asn, Tyr, or pHPeG, particularly preferably Ph or Tyr.
- the 14th amino acid residue of SEQ ID NO: 214 is MeTyr, Tyr, Phe, Ala, aMeY, Glu, Gly, Arg, Val, MeoBphMeBph ,, MeF, MemBph, MeNal1, MeNal2, MeoBph, MeW or pHPeG, in particular. Ph or MeW,
- the 15th amino acid residue of SEQ ID NO: 296 may be a peptide of Cys or Hgl.
- the third amino acid residue of SEQ ID NO: 296 is phenylalanine (Phe), methylated phenylalanine (MeF), or N- ⁇ -methyl-N- ⁇ -chloroacetyl-3-chloro-L-phenylalanine (MeF3C).
- the fifth amino acid residue of SEQ ID NO: 296 is tryptophan (Trp) or methylated tryptophan (MeW).
- the 7th amino acid residue of SEQ ID NO: 296 is tyrosine.
- the eighth amino acid residue of SEQ ID NO: 296 is tyrosine (Tyr) or (S) -2-amino-3- (4-methoxyphenyl) propanoic acid (F4OMe).
- the 11th amino acid residue of SEQ ID NO: 296 is arginine (Arg) or lysine (Lys).
- the 12th amino acid residue of SEQ ID NO: 296 is arginine (Arg) or D-arginine (dr).
- a peptide in which the 13th amino acid residue of SEQ ID NO: 296 is tyrosine (Tyr) or phenylalanine (Phe) may be used.
- a preferred example of this peptide is a peptide consisting of any of the amino acid sequences of SEQ ID NOs: 3 to 200, or an amino acid sequence having an N-terminal of chloroacetyl-Ala in any of the amino acid sequences of SEQ ID NOs: 3 to 200. ..
- a preferred example of this peptide is any of the peptides described above, which is a cyclic peptide.
- Preferred examples of this peptide include the 1st to 10th amino acid sequences of the amino acid sequence set forth in any of SEQ ID NOs: 1 to 552 or a complex of an amino acid sequence and a linker, and the amino acid sequence site has a cyclic structure. It is a peptide.
- this peptide are the amino acid sequence set forth in any of SEQ ID NOs: 2, 9, 21 to 148, 159 to 200, 213 to 448, 450 to 552, or the first to the complex of the amino acid sequence and the linker. It is a peptide consisting of the 15th amino acid sequence and having a cyclic structure at the amino acid sequence site.
- Cyclic peptide refers to a peptide in which two amino acids are bound and all or part of them are cyclic.
- those in which amino acids in the peptide form a crosslinked structure those in which a cyclic structure is formed by lactam ring formation or macrocyclization reaction, those having a lassopeptide-like structure, and the like are also included. That is, in the present application, the cyclic peptide may have a linear portion as long as a part thereof forms a cyclic structure.
- Peptides generally have poor metabolic stability in vivo and have a problem that they are difficult to permeate through cell membranes due to their large size. To solve such a problem, a method of cyclizing the peptide has been adopted. Cyclization of the peptide suggests that protease resistance is improved, metabolic stability is improved, and conformational change is also restricted, resulting in increased rigidity and improved membrane permeability and affinity with target proteins. It has been.
- Cyclization method Peptide cyclization can be carried out according to a known method.
- a cyclic structure can be formed by a disulfide bond after being translated.
- a peptide having a chloroacetyl group at the N-terminal was synthesized by the reprogramming technique of the genetic code according to the method of Goto et al. , It can also be cyclized by placing a cysteine residue in the peptide.
- the mercapto group spontaneously nucleophilically attacks the chloroacetyl group after translation, and the peptide is cyclized by a thioether bond.
- amino acid combinations that bind to form a ring may be placed within the peptide to form a ring by genetic code reprogramming techniques. It can also be cyclized by synthesizing a peptide having a cycloamide at the N-terminal and arranging an Hgl residue in the peptide. As described above, any known cyclization method can be used without particular limitation.
- a preferred example of this peptide is any of the above peptides, which consists of 15 amino acid residues.
- Peptide length The number of amide bonds (number and length of amino acids) of the peptide and peptide site is not particularly limited, but when the total amino acid residue (the substance bound to the peptide or the linker that binds the substance to the peptide contains amino acids) , Those amino acids are not included) is preferably within 20 residues. Amino acids are preferably 6 or more, 7 or more, 8 or more, 9 or more, 10 or more, and 11 or more, and preferably amino acids are 19 or less, 18 or less, 17 or less, 16 or less, and 15 or less.
- This complex is a complex containing any of the above-mentioned peptides, a linker bound to this peptide, and a substance bound to this linker. At a minimum, it is preferably a complex in which the substance can cross the blood-brain barrier.
- the complex as a whole may be able to cross the blood-brain barrier.
- the complex is preferably directional in muscle tissue.
- the complex is preferably capable of transporting at least the substance to the muscle tissue.
- the complex preferably has cell permeability.
- the complex is preferably capable of transporting at least the substance to the cell.
- linker is one in which the amino acid length of the linker is 1 or more and 15 or less, and the linker contains one or more of glycine (Gly) or serine (Ser).
- Gly glycine
- Ser serine
- a preferred example of this linker is cysteine (Cys), which may be N-terminally modified, or lysine (Lys), which may be modified.
- linker is one that has an amino acid length of 1 or more and 5 or less and contains either or both of D-form glutamic acid (de) and methylated glycine (MeG).
- de D-form glutamic acid
- MeG methylated glycine
- a preferred example of this linker is a complex in which the N-terminus is optionally modified cysteine (Cys) or optionally modified lysine (Lys).
- linker is polyethylene glycol (PEG) or a PEG linker containing a derivative of polyethylene glycol.
- Derivatives of polyethylene glycol include all known as PEG linkers. It is preferable that the PEG linker further contains glycine (Gly), serine (Ser), glutamic acid (Glu), arginine (Arg), or lysine (Lys).
- Gly glycine
- Ser serine
- Glu glutamic acid
- Arg arginine
- Lys lysine
- a preferred example of this linker is a complex in which the N-terminus is optionally modified cysteine (Cys) or optionally modified lysine (Lys).
- linker is one in which the linker has the sequence indicated by any of SEQ ID NOs: 201, 553 to 644.
- linker Polyethylene glycol (PEG), G-linker, which is a peptide linker consisting of Gly or MeG, GS linker, which is a peptide linker consisting of Gly or MeG and Ser, Alternatively, it is that of a linker having an amino acid sequence shown in any of SEQ ID NOs: 201, 553 to 644.
- PEG Polyethylene glycol
- G-linker which is a peptide linker consisting of Gly or MeG
- GS linker which is a peptide linker consisting of Gly or MeG and Ser
- a linker (also referred to as a cross-linker), herein, indicates an intermolecular link between a peptide that binds to a transferrin receptor and a substance that is desired to be delivered to the brain, and may be any known or described herein. ..
- the linker is, for example, a chemical linker, a fatty acid linker, a peptide linker (polypeptide linker). It may also be a complex of, for example, a chemical linker and a peptide linker. For example, it may be a linker structure having both PEG and an amino acid residue or a peptide moiety shown in SEQ ID NO: 616, SEQ ID NO: 627 and the like.
- the linker may be, for example, one that deviates or separates depending on the environment and conditions, or one that maintains a stable structure.
- the linker may be a chemical linker.
- Chemical linkers include, but are not limited to, substituted or unsubstituted alkylene, substituted or unsubstituted heteroalkylene, substituted or unsubstituted cycloalkylene, substituted or unsubstituted heterocycloalkylene, substituted or unsubstituted arylene and / or. Includes substituted or unsubstituted heteroarylene.
- Peptides and linkers can also be conjugated via sulfhydryl groups, amino groups (amines), and / or carbohydrates or any suitable reactive group. Homobifunctional and heterobifunctional crosslinkers (conjugation agents) are available from many commercial sources.
- the crossed linker may contain a flexible arm, eg, 2,3,4,5,6,7,8,9,10,11,12,13,14 or 15 carbon atoms.
- cross-linkers include BSS3 ([bis (sulfosuccinimidel) sverate], NHSS / EDC (N-hydroxysuccinimide and N-ethyl- (dimethylaminopropyl) carbodiimide, sulfo-EMCSS ([N-e-].
- Maleimide caproic acid Hydrazide, hydrazide, SSATA (N-succinimidel-SS-acetylthioacetic acid) and the like.
- a preferred example of a chemical linker is a PEG (Polyethyleneglycol) linker.
- the PEG linker may be a PEG linker consisting of 1 to 24 ethylene glycol units.
- the linker may be a fatty acid linker containing a divalent chemical moiety derived from a fatty acid.
- the fatty acid linker may be a linker having 12-aminododecanoic acid.
- a peptide linker contains at least one amino acid (eg, a peptide of at least 2,3,4,5,6,7,10,15,20,25,40 or 50 amino acids).
- the linker is a single amino acid (eg, any natural amino acid such as Cys).
- the sequence [Gly-Gly-Gly-Gly-Ser] n (where n is 1,2,3,4,5) as described in US Pat. No. 7,271,149.
- a glycine-rich peptide such as a peptide having (or 6) is used.
- a serine-rich peptide linker as described in US Pat. No. 5,525,491, is used.
- the linker is a single amino acid (eg, any amino acid such as Gly or Ala).
- An invention described herein relates to a prophylactic or therapeutic agent for brain-related diseases.
- the prophylactic or therapeutic agent for this brain-related disease contains the above-mentioned complex, and the above-mentioned substance is the active ingredient.
- a substance is a substance that is delivered to the brain.
- the substance may be any substance desired by those skilled in the art as long as it is a substance desired to be delivered to the brain.
- BBB binds to the transferrin receptor and depends on the mechanism of endocytosis, transcytosis, etc.
- a substance that is too large to be transported by those mechanisms is not preferable.
- Examples of such materials include, but are not limited to: Compound: Not only a small molecule compound and a medium molecule compound, but any compound that can be introduced by the cytosis mechanism of cells may be used. For example, known small molecule drugs can be mentioned.
- Peptide A peptide that binds to a target in the body and exerts some effect, for example, a cyclic peptide.
- RI Any compound that can be labeled with a radioisotope, such as a small molecule, medium molecule compound or antibody labeled with a radioisotope.
- Protein Any protein such as an antibody or an enzyme that exhibits a useful function in the body may be used.
- enzymes used in enzyme replacement therapy can be mentioned.
- Nucleic acid Anything containing a base sequence such as DNA and RNA may be used.
- a nucleic acid drug can be mentioned.
- DDS It may be a DDS molecule such as a liposome or a micelle. The DDS molecule may further contain a compound such as a pharmaceutical product inside. And, it may be a complex thereof listed above.
- a certain invention described in this specification relates to a method for producing a prophylactic or therapeutic agent for a brain-related disease.
- This method is a method for producing a prophylactic or therapeutic agent for a brain-related disease, which comprises the step of obtaining the above-mentioned complex.
- linker Polyethylene glycol (PEG), G linker, GS linker Alternatively, it is a linker having the amino acid sequence shown in any of SEQ ID NOs: 201, 553 to 644.
- One invention described herein relates to a diagnostic agent for brain-related diseases, including the complexes described above.
- An invention described in this specification is a prophylactic or therapeutic agent for neuromuscular diseases containing the above-mentioned complex.
- the substance is the active ingredient in a prophylactic or therapeutic agent for neuromuscular disease.
- Certain inventions described herein include the complexes described above.
- One invention described herein relates to a diagnostic agent for neuromuscular disease, including the complexes described above.
- the peptide of the present invention can be produced by a known peptide production method such as a liquid phase method, a solid phase method, a chemical synthesis method such as a hybrid method combining a liquid phase method and a solid phase method; and a gene recombination method. Twice
- the hydroxyl group of a resin having a hydroxyl group is subjected to an esterification reaction with the carboxy group of the first amino acid (usually the C-terminal amino acid of the target peptide) in which the ⁇ -amino group is protected by a protecting group.
- esterification catalyst known dehydration condensing agents such as 1-mesitylenesulfonyl-3-nitro-1,2,4-triazole (MSNT), dicyclohexylcarbodiimide (DCC), and diisopropylcarbodiimide (DIPCDI) can be used.
- the protective group of the ⁇ -amino group of the first amino acid is eliminated, and the second amino acid in which all functional groups other than the carboxy group of the main chain are protected is added to activate the carboxy group.
- the first and second amino acids are bound.
- the ⁇ -amino group of the second amino acid is deprotected, and a third amino acid in which all functional groups other than the carboxy group of the main chain are protected is added to activate the carboxy group to activate the second and second amino acids. Bind the third amino acid. This is repeated to deprotect all functional groups once the peptide of the desired length has been synthesized.
- Resins for solid-phase synthesis include Merrifield resin, MBHA resin, Cl-Trt resin, SASRIN resin, Wang resin, Link amide resin, HMFS resin, Amino-PEGA resin (Merck), HMPA-PEG, etc. Can be mentioned. These resins can be used after washing with a solvent (dimethylformamide (DMF), 2-propanol, methylene chloride, etc.).
- a solvent dimethylformamide (DMF), 2-propanol, methylene chloride, etc.
- Protecting groups for the ⁇ -amino group include benzyloxycarbonyl (Cbz or Z) group, tert-butoxycarbonyl (Boc) group, fluorenylmethoxycarbonyl (Fmoc) group, benzyl group, allyl group, and allyloxycarbonyl (Allloc). ) Group etc.
- the Cbz group can be deprotected by hydrofluoric acid, hydrogenation, etc.
- the Boc group can be deprotected by trifluoroacetic acid (TFA)
- the Fmoc group can be deprotected by treatment with piperidine.
- methyl ester, ethyl ester, benzyl ester, tert-butyl ester, cyclohexyl ester and the like can be used.
- the hydroxy group of serine or threonine can be protected with a benzyl group or tert-butyl group, and the hydroxy group of tyrosine is protected with a 2-bromobenzyloxycarbonyl dilute or tert-butyl group.
- the amino group of the lysine side chain and the carboxy group of glutamic acid and aspartic acid can be protected in the same manner as the ⁇ -amino group and the ⁇ -carboxy group.
- Activation of the carboxy group can be performed using a condensing agent.
- the condensing agent include dicyclohexylcarbodiimide (DCC), diisopropylcarbodiimide (DIPCDI), 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide (EDC or WSC), and (1H-benzotriazole-1-yloxy) tris.
- DCC dicyclohexylcarbodiimide
- DIPCDI diisopropylcarbodiimide
- EDC or WSC 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide
- (1H-benzotriazole-1-yloxy) tris examples thereof include (dimethylamino) phosphonium hexafluorophosphate (BOP), 1- [bis (dimethylamino) methyl] -1H-benzotriazolium-3-oxide hexaflu
- Cleavage of the peptide chain from the resin can be performed by treating with an acid such as TFA or hydrogen fluoride (HF). Twice
- the peptide can be produced by the gene recombination method (translational synthesis system) using the nucleic acid encoding the peptide of the present invention.
- the nucleic acid encoding the peptide of the present invention may be DNA or RNA.
- the nucleic acid encoding the peptide of the present invention can be prepared by a known method or a method similar thereto. For example, it can be synthesized by an automatic synthesizer. A restriction enzyme recognition site may be added to insert the obtained DNA into the vector, or a base sequence encoding an amino acid sequence for excising the resulting peptide chain with an enzyme or the like may be incorporated.
- the nucleic acid when the peptide of the present invention is fused with a membrane-permeable peptide or the like, the nucleic acid also includes a nucleic acid encoding a membrane-permeable peptide.
- a chimeric protein expression method in which the target peptide is expressed as a chimeric peptide with another peptide can also be used.
- the nucleic acid a nucleic acid encoding a target peptide and a peptide that binds to the target peptide is used as the nucleic acid.
- an expression vector is prepared using the nucleic acid encoding the peptide of the present invention.
- the nucleic acid can be inserted as it is, digested with a restriction enzyme, added with a linker, or the like, and inserted downstream of the promoter of the expression vector.
- Vectors include Escherichia coli-derived plasmids (pBR322, pBR325, pUC12, pUC13, pUC18, pUC19, pUC118, pBluescript II, etc.), bacteriophage-derived plasmids (pUB110, pTP5, pC1912, pTP4, pE194, pC194, etc.), yeast-derived plasmids (pC194, pC194, etc.).
- Escherichia coli-derived plasmids pBR322, pBR325, pUC12, pUC13, pUC18, pUC19, pUC118, pBluescript II, etc.
- bacteriophage-derived plasmids pUB110, pTP5, pC1912, pTP4, pE194, pC194, etc.
- yeast-derived plasmids pC194, pC194, etc.
- bacteriophage e-phage, M13 phage, etc.
- viruses retrovirus, vaccinia virus, adenovirus, adeno-associated virus (AAV), Califlower mosaic virus, tobacco mosaic virus, etc.) , Bacteriophage, etc.
- Cosmid etc. Twice
- the promoter can be appropriately selected according to the type of host.
- a promoter derived from SV40 simian virus 40
- CMV cytomegalovirus
- Escherichia coli a trp promoter, a T7 promoter, a lac promoter, or the like can be used.
- the expression vector encodes a DNA replication origin (ori), a selectable marker (antibiotic resistance, auxotrophy, etc.), an enhancer, a splicing signal, a poly A addition signal, and a tag (FLAG, HA, GST, GFP, etc.). It is also possible to incorporate a nucleic acid or the like.
- the host can be appropriately selected in relation to the vector, and for example, Escherichia coli, Bacillus subtilis, Bacillus), yeast, insects or insect cells, animal cells and the like are used.
- animal cells for example, HEK293T cells, CHO cells, COS cells, myeloma cells, HeLa cells, and Vero cells can be used. Transformation can be performed according to a known method such as a lipofection method, a calcium phosphate method, an electroporation method, a microinjection method, or a particle gun method, depending on the type of host. By culturing the transformant according to a conventional method, the target peptide is expressed. Twice
- the obtained peptide may be converted from a free form to a salt or from a salt to a free form by a known method or a method similar thereto.
- the translation synthesis system may be a cell-free translation system.
- Cell-free translation systems include, for example, ribosomal proteins, aminoacyl-tRNA synthetase (ARS), ribosomal RNA, amino acids, rRNA, GTP, ATP, translation initiation factor (IF) elongation factor (EF), termination factor (RF), and ribosomal proteins. Includes regeneration factor (RRF), as well as other factors required for translation.
- Escherichia coli extract or wheat germ extract may be added to increase the expression efficiency.
- rabbit red blood cell extract or insect cell extract may be added.
- a system containing RNA polymerase may be used to perform transcription from gene DNA at the same time.
- Escherichia coli-derived systems include RTS-100 (registered trademark) GeneFrontier Corp. PURESYSTEM and NEW ENGLAND Biolabs PUREXpress In Vitro Protein Synthesis Kit, etc.
- RTS-100 registered trademark
- PURESYSTEM registered trademark
- NEW ENGLAND Biolabs PUREXpress In Vitro Protein Synthesis Kit, etc.
- As a system using the wheat germ extract those of Zoegene, CellFree Science, etc. can be used. According to the cell-free translation system, the expression product can be obtained in a highly pure form without purification.
- an artificial aminoacyl-tRNA in which a desired amino acid or hydroxy acid is linked (acylated) to the tRNA may be used instead of the aminoacyl-tRNA synthesized by the natural aminoacyl-tRNA synthase.
- Such aminoacyl-tRNA can be synthesized using an artificial ribozyme.
- Such ribozymes include flexizyme (H. Murakami, H. Saito, and H. Suga, (2003), Chemistry & Biology, Vol. 10, 655-662; H. Murakami Suga, (2003), Chemistry & Biology, Vol. 10, 1077-1084; H. Murakami, A. Ohta, H. Ashigai, H.
- Flexizymes are also known as prototype flexizymes (Fx) and modified dinitrobenzyl flexizymes (dFx), enhanced flexizymes (eFx), aminoflexizymes (aFx) and the like.
- a desired codon can be translated in association with the desired amino acid or hydroxy acid.
- a special amino acid may be used.
- the unnatural amino acids required for cyclization described above can also be introduced into the binding peptide by this method.
- the chemical synthesis of the large cyclic peptide and its analogs of the present invention is widely used in various technical fields including stepwise solid phase synthesis, semisynthesis of peptide fragments undergoing coordinated support religation, and chemical ligation. Can be synthesized using the above method.
- the synthesis of peptides and their analogs described herein can be described, for example, in K. et al. J. Jensen, P.M. T. Shelton, S.A. L. It is a chemical synthesis using various solid phase technologies as described in Pedersen, Peptide Synthesis and Applications, 2nd Edition, Springer, 2013 and the like.
- a preferred strategy is based on a combination of an Fmoc group that temporarily protects the ⁇ -amino group and allows selective removal by a base, and a protecting group that temporarily protects the side chain functional group and is stable under de-Fmoc conditions. .. Selection of such a general peptide side chain is described in Peptide Synthesis and Applications, 2nd edition and G.I. B. Fields, R.M. L. Noble, Solid Phase, Peptide Synthesis, Utilizing 9-Fluorolenylmethoxycarbonyl Amino Acids, Int. J. Peptide Protein Res.
- preferred peptide side chain protecting groups are Boc group and Mtt group for amino groups such as lysine, and tert-butyl group for carboxyl group of glutamate and aspartic acid.
- Trt and Mmt groups are also Trt and Mmt groups relative to the thiol group of cysteine.
- the peptides and analogs thereof described in the present invention can be synthesized by a stepwise method on the above-mentioned solid phase resin.
- the C-terminal amino acids used and all amino acids and peptides used in the synthesis must be selectively stripped of ⁇ -amino protecting groups during the synthetic process.
- the above-mentioned solid phase resin is used, and the C-terminal carboxyl group of an appropriately protected peptide such as Fmoc at the N-terminal or the C-terminal carboxyl group of an amino acid protected with Fmoc is used as an activated ester with an appropriate reagent and then solidified. It is started by adding to the amino group on the phase resin.
- Subsequent elongation of the peptide chain can be achieved by sequentially repeating the removal of the N-terminal protecting group (Fmoc group) and then the condensation of the protected amino acid derivative according to the amino acid sequence of the peptide of interest. In addition, these can release the target peptide at the final stage.
- Fmoc group N-terminal protecting group
- these can release the target peptide at the final stage.
- TFA Water / TIS / DODT (volume ratio 92.5: 2.5: 2.5: 2.5).
- peptide analogs described herein can be synthesized by using a single or multi-channel peptide synthesizer, for example, a Liberty Blue synthesizer from CEM or a Siro I synthesizer from Biotage.
- a single or multi-channel peptide synthesizer for example, a Liberty Blue synthesizer from CEM or a Siro I synthesizer from Biotage.
- Activation of the carboxy group can be performed using a condensing agent.
- the condensing agent include dicyclohexylcarbodiimide (DCC), diisopropylcarbodiimide (DIPCDI), 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide (EDC or WSC), and (1H-benzotriazole-1-yloxy) tris.
- DCC dicyclohexylcarbodiimide
- DIPCDI diisopropylcarbodiimide
- EDC or WSC 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide
- (1H-benzotriazole-1-yloxy) tris examples thereof include (dimethylamino) phosphonium hexafluorophosphate (BOP), 1- [bis (dimethylamino) methyl] -1H-benzotriazolium-3-oxide hexaflu
- the medicament includes the above-mentioned peptides, pharmaceutically acceptable salts or solvates thereof (for simplicity, these are also simply referred to as peptides below).
- This medicine preferably contains the above-mentioned peptide as an active ingredient in an effective amount.
- the administration form of the pharmaceutical composition is not particularly limited, and may be oral administration or parenteral administration.
- Parenteral administration includes, for example, intramuscular injection, intravenous injection, subcutaneous injection, and other injections, transdermal administration, and transmucosal administration (nasal, oral cavity, eye, lung, vagina, and rectum). Etc. can be raised. Twice
- the above-mentioned pharmaceutical composition can be modified in various ways in view of the property that the polypeptide is easily metabolized and excreted.
- polyethylene glycol (PEG) or a sugar chain can be added to a polypeptide to prolong the residence time in blood and reduce the antigenicity.
- sustained-release bases such as biodegradable polymerized compounds such as polylactic acid / glycol (PLGA), porous hydroxyapatite, liposomes, surface-modified liposomes, emulsions prepared with unsaturated fatty acids, nanoparticles, and nanospheres are used. It may be used as an inclusion of a polypeptide.
- a weak electric current can be applied to the surface of the skin to allow it to penetrate the stratum corneum (iontophoresis method). Twice
- the active ingredient may be used as it is, or the pharmaceutical composition may be formulated by adding a pharmaceutically acceptable carrier, excipient, additive or the like.
- Dosage forms include, for example, liquids (for example, injections), dispersants, suspensions, tablets, pills, powders, suppositories, powders, fine granules, granules, capsules, syrups, troches, etc. Examples include inhalants, ointments, eye drops, nasal drops, ear drops, and poultices.
- Formulations include, for example, excipients, binders, disintegrants, lubricants, solubilizers, solubilizers, colorants, flavoring agents, stabilizers, emulsifiers, absorption promoters, surfactants, pH adjustments. It can be carried out by a conventional method with appropriate use of agents, preservatives, antioxidants, etc.
- ingredients used in formulation include purified water, saline solution, phosphate buffer, dextrose, glycerol, ethanol and other pharmaceutically acceptable organic solvents, animal and vegetable oils, lactose, mannitol, glucose, sorbitol, crystalline cellulose.
- the above-mentioned pharmaceutical composition may contain an absorption enhancer for improving the absorption of a poorly absorbable drug in view of the fact that the peptide is difficult to be absorbed through the mucosa.
- absorption enhancers include surfactants such as polyoxyethylene lauryl ethers, sodium lauryl sulfate and saponin; bile acids such as glycocholic acid, deoxycholic acid and taurocholic acid; chelating agents such as EDTA and salicylic acids; Fatty acids such as caproic acid, capric acid, lauric acid, oleic acid, linoleic acid, mixed micelles; enamine derivatives, N-acyl collagen peptides, N-acyl amino acids, cyclodextrins, chitosans, nitrogen monoxide donors, etc. Can be used.
- Pills or tablets can also be coated with sugar-coated, gastric-soluble, enteric-soluble substances.
- the injection may contain distilled water for injection, physiological saline, propylene glycol, polyethylene glycol, vegetable oil, alcohols and the like.
- wetting agents, emulsifiers, dispersants, stabilizers, solubilizers, solubilizing agents, preservatives and the like can be added.
- the dosage is determined by symptoms, patient age, sex, etc. It depends on the body weight, sensitivity difference, administration method, administration interval, type of active ingredient, type of preparation, and is not particularly limited, but for example, 30 ⁇ g to 100 g, 100 ⁇ g to 500 mg, 100 ⁇ g to 100 mg are administered in one or several divided doses. can do.
- 1 ⁇ g / kg to 3000 ⁇ g / kg and 3 ⁇ g / kg to 1000 ⁇ g / kg may be administered once or in several divided doses depending on the body weight of the patient. Twice
- a method for preventing or treating a brain-related disease using the peptide of the present invention can be carried out with reference to the above description of the pharmaceutical composition.
- the above-mentioned pharmaceutical composition may be used as a preventive or therapeutic agent for neuromuscular diseases containing the above-mentioned complex.
- This brain-related disease detection agent contains the above-mentioned peptides, salts thereof or solvates thereof.
- Brain-related disease detection drug and detection kit The present invention also includes a brain-related disease detecting agent containing the peptide of the present invention.
- the peptides of the invention may be detectable detectable.
- Peptide labels include, for example, enzymes such as peroxidase and alkaline phosphatase, radioactive substances such as 125I, 131I, 35S and 3H, fluorescein isothiocyanate, rhodamine, dansylloride, phycoerythrin, tetramethylrhodamine isothiocyanate, near-infrared fluorescent material and the like.
- Antibodies labeled with luminescent substances such as fluorescent substances, luciferase, luciferin, and equolin are used.
- antibodies labeled with nanoparticles such as colloidal gold and quantum dots can be detected.
- a complex is prepared from an antibody that binds to a specific target related to a brain-related disease and a peptide of the present invention, a complex labeled with the antibody or the peptide of the present invention is prepared, and the complex is administered and detected. This makes it possible to detect brain-related diseases.
- the peptide of the present invention can be labeled with biotin, and avidin or streptavidin labeled with an enzyme or the like can be bound and detected.
- the ELISA method using an enzyme label is preferable because the antigen can be measured easily and quickly.
- the antibody is immobilized on a solid-phase carrier, a sample is added and reacted, and then a labeled peptide of the present invention is added and reacted. After washing, brain-related diseases can be detected by reacting with the enzyme substrate, developing color, and measuring the absorbance.
- the unlabeled peptide of the present invention may be added, and the antibody against the peptide of the present invention may be further labeled with an enzyme.
- DAB 3,3'-diaminobenzidine
- TMB 3,3', 5,5'-tetramethylbenzidine
- OPD o-phenylenediamine
- NPP p-nitrophenyl phosphatase
- the "solid phase carrier” is not particularly limited as long as it is a carrier capable of immobilizing an antibody, and is a microtiter plate made of glass, metal, resin, etc., a substrate, beads, a nitrocellulose membrane, a nylon membrane, PVDF. Examples thereof include membranes, and the target substance can be immobilized on these solid-phase carriers according to a known method. Twice
- the test kit according to the present invention includes, but is not limited to, the reagents and instruments necessary for the above detection (including, but not limited to, the peptide, antibody, solid phase carrier, buffer solution, enzyme reaction terminator, microplate reader, etc. of the present invention). including. Twice
- Another embodiment disclosed herein is a brain-related disease detection kit containing the above-mentioned brain-related disease detection agent, a brain-related disease, and a tool for elucidating various cell functions and biological phenomena associated therewith. Can also be considered for use as.
- This specification also provides the use of peptides for the manufacture of pharmaceuticals for the prevention or treatment of brain-related diseases.
- the peptide in this case may be any of the above.
- the specification also provides for the use of peptides to produce pharmaceuticals for the prevention or treatment of neuromuscular diseases.
- the peptide in this case may be any of the above.
- This specification comprises the step of administering an effective amount of a peptide, a pharmaceutically acceptable salt thereof, or a solvate thereof, or a complex thereof to a subject who is a human, a non-human mammal or a bird. Also provides preventive or therapeutic methods for.
- a peptide the above-mentioned peptide can be appropriately used. Examples of non-human mammals are non-human primates, pigs, cows, dogs, cats, horses, sheep, rats and mice.
- This specification comprises the step of administering to a human, non-human mammal or avian subject an effective amount of a peptide, a pharmaceutically acceptable salt thereof, or a solvate thereof, or a complex thereof. Also provides preventive or therapeutic methods for.
- the extension of the peptide chain in the solid-phase resin was carried out using the resins described in the respective examples as starting materials, and using the commonly used peptide coupling reaction conditions and Fmoc removal reaction conditions.
- the reaction was carried out using a CEM Liberty Blue, which is an automatic peptide synthesizer, according to the manufacturer's manual. Common amino acids used are listed below and side chain protecting groups are shown in parentheses.
- Fmoc-Trp Boc
- Fmoc-Thr (tBu) -OH
- Fmoc-Asp OtBu
- Fmoc-N-Me-Phe H
- Fmoc-Ala H
- Fmoc-N-Me-Ala H
- Fmoc-His Trt
- Fmoc-HidPro (tBu) -OH
- Fmoc-Cys Trt) -OH
- Fmoc-Lys (Mtt) -OH
- Fmoc-N-Me-Ser tBu
- the Fmoc group of the ⁇ -amino group is removed from the solid-phase resin containing the Fmoc-protected peptide obtained in the previous step by the method described above, and then chloroacetic acid (3rd grade, etc.) is introduced. Amount) is added by adding 3 equal amounts of N, N'-diiropropylcarbodiimide DMF solution (0.5 M) and 3 equal amounts of HOAt DMF solution (0.5 M), and shaking at room temperature for 40 minutes. rice field.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF and methylene chloride 5 times each and dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 150 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, and the solution component was recovered from the frit and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the peptide cyclization reaction is carried out by dissolving the peptide in DMSO so that the final concentration of the peptide is 5 mM based on the number of moles of the solid-phase resin, adding 6 equal amounts of triethylamine, and stirring at room temperature for about 16 hours. rice field.
- the obtained reaction solution was acidified with acetic acid and concentrated under reduced pressure using Biotage (registered trademark) V-10 (Biotage Japan).
- the purity of the chemically synthesized peptide in the present invention was determined by any of the following analytical methods.
- Analysis condition A Column; CORETCS (registered trademark) UPLC (registered trademark) C18 volume (Japan Waters Corp.), 90 ⁇ , 1.6 ⁇ m, 2.1 x 100 mm
- Mobile phase 0.025% TFA inMeCN / 0.025% TFA inH 2 O
- Temperature 40 ° C
- Gradient 5-95% MeCN / 0.025% TFA in H 2 O in 5.56 min; linear gradation Flow rate 0.4 mL / min
- Detection method UV 220 nm
- the hTfR-binding peptide was identified by the screening method described in WO2014 / 119600, WO2012 / 033154, or WO2007 / 066627. ..
- the peptide was chemically synthesized for the purpose of confirming whether or not the peptide actually has a binding activity to hTfR.
- the sequence of the synthesized peptide is shown in Table 1.
- the peptide of interest was synthesized, starting with the removal of Fmoc according to the general method described above.
- Liberty Blue HT manufactured by CEM was used as a solid-phase synthesizer, and the synthesis was carried out according to the manufacturer's manual.
- the basic condition of the condensation reaction was to react at 75 ° C. for 10 minutes.
- the basic condition for de-Fmocization was to react in 20% piperidine in DMF at 75 ° C. for 3 minutes.
- the Fmoc group of the ⁇ -amino group is removed from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then 5 equal amounts of chloro are introduced.
- a DMF solution of acetic acid (0.2 M), a DMF solution of 5 equal volumes of HATU (0.5 M), and a DMF solution of 10 equal volumes of DIPEA (1 M) were added and shaken at room temperature for 30 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times and dried under reduced pressure.
- a reactant cocktail (a mixture of TFA / H 2 O / TIS / DODT in a volume ratio of 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin, and the temperature was changed to room temperature. Was shaken for 90 minutes. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate. Addition of this filtrate to excess diethyl ether / hexane (1/1) cooled to 0 ° C. resulted in a cloudy precipitate.
- the mixture was centrifuged (10000 rpm, 1 min) and the solution was decanted.
- the obtained solid was washed again with a small amount of diethyl ether cooled to 0 ° C., and the obtained solid was dried and used for the next cyclization reaction.
- the peptide cyclization reaction was dissolved in DMSO so that the final concentration of the peptide was 5 mM based on the number of moles of the solid-phase resin, 6 equal amounts of triethylamine was added, and the mixture was stirred at room temperature for about 16 hours.
- the obtained reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVac.
- the obtained target product was analyzed under the above-mentioned analysis condition A or analysis condition B, and the structure was confirmed by ESI-MS (+) in the mass spectrum analysis method.
- Table 1 shows the obtained ESI-MS (+) observed value and the value of X when shown as the number of proton additions (M + XH) X + in that case.
- a 350 mM EDTA solution was reacted at a flow rate of 10 ⁇ L / min for 60 seconds, a 0.5 mM NiCl 2 solution (Kishida Chemistry) was reacted at a flow rate of 10 ⁇ L / min for 60 seconds, and then a 3 mM EDTA solution (Nacalai Tesque, Inc.) was reacted at a flow rate of 10 ⁇ L / min.
- the NTA sensor chip was washed with min for 60 seconds.
- a 1.0 M aqueous ethanolamine solution (Global Life Science Technologies Japan Co., Ltd.) was reacted at a flow rate of 10 ⁇ L / min for 420 seconds for capping.
- the peptide solution prepared to 10 mM in the DMSO solution was diluted with a running buffer solution so as to have a final concentration of 10 ⁇ M, and then 100 nM, 50 nM, 25 nM, 10 nM, and 5 nM peptide solutions were prepared.
- the kinetics of the peptide for hTfR was obtained by SPR measurement.
- the kinetic evaluation model was Single Cycle Kinetics, and curve fitting was performed using Biacore T200 Evolution Software Version 3.0 (Global Life Science Technologies Japan Co., Ltd.). Curve fitting by the least squares method was performed on the obtained sensorgram, and the binding of the peptide to hTfR was evaluated by determining the KD value.
- the KD value when the KD value is less than 1 nM, it is expressed as A, when it is 1 nM or more and less than 100 nM, it is expressed as B, when it is 100 nM or more and less than 1 ⁇ M, it is expressed as C, and when it is 1 ⁇ M or more, it is expressed as D. Shown in 1.
- hTfRNo Cyclic peptides with 894 and similar amino acid sequences have been shown to have significant hTfR binding potential.
- hTfRNo The chemical structure of 894 is as follows.
- hTfR-Binding Peptide-PEG11-Vivotag 750 Conjugate hTfRNo. 894-Vivotag 750
- hTfRNo a compound in which Vivotag 750 (VivoTag-S TM 750, PerkinElmer), which is a near-infrared fluorescent labeling substance, was bound via a PEG11 linker was synthesized as a payload (hTfRNo.894-vivotag750, or hTfR_000894_PEG11_). VivoTag)) (SEQ ID NO: 146).
- the chemical structure of the hTfR-binding peptide-PEG11 is as follows, and the compound described was synthesized by binding Vivo-tag750 to the compound. Details are described below.
- the 11th and 12th residues were repeatedly reacted twice at 25 ° C. for 20 minutes.
- the 13th and 14th residues were repeatedly reacted twice at 75 ° C. for 10 minutes.
- the 15th residue was reacted once at 25 ° C. for 20 minutes.
- the 16th residue was reacted once at 25 ° C. for 60 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes.
- Fmoc removal was carried out by reacting at 25 ° C. for 5 minutes and then reacting for 10 minutes.
- the introduction of the chloroacetyl group is carried out with respect to the resin obtained in the previous step, 5 equal amounts of chloroacetic acid in DMF solution (0.2 M), 5 equal amounts of HATU DMF solution (0.5 M), and 10 equal amounts of DIPEA.
- DMF solution (1M) was added to the solid phase resin and shaken at room temperature for 30 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times and dried under reduced pressure.
- the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate. When this filtrate was added to a mixed solvent of excess diethyl ether and hexane cooled to 0 ° C., a cloudy precipitate was formed.
- the mixture was centrifuged (10000 rpm, 1 min) and the supernatant was decanted.
- the obtained solid was washed with ice-cooled diethyl ether and then dried.
- the obtained solid was used for the next cyclization reaction.
- the peptide cyclization reaction is carried out by dissolving in DMSO so that the final concentration of the peptide is 5 mM based on the number of moles of the solid-phase resin, adding 6 equal amounts of triethylamine, shaking at room temperature overnight, and then using a Savant Explorer SpeedVac. After concentration under reduced pressure, it was purified by reverse phase HPLC.
- the resulting peptide (26.1mg, 9.30umol) was dissolved in DMSO / H 2 O (9/1) , 0.91 eq of VivoTag-NHS, 4.5 eq of DIEA was added stirred for 45 minutes bottom. AcOH was added to the reaction solution and quenched.
- the purity of the target product was 97.1% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- ESI-MS (+) Observed value m / z 1226.4 (M + 3H) 3+
- Control peptide conjugate hTfRNo. Synthesis of 894FLIP-vivotag750 hTfRNo. As a control of 894-vivotag750, No. A cyclic peptide having the following amino acid sequence in which the sequence of 894 was inverted and a conjugate in which vivotag 750 was bound via a PEG11 linker were synthesized (denoted as hTfRNo.894 FLIP-vivotag 750 or FLIP_000894_PEG11_K_FITC).
- hTfRNo Brain transfer evaluation test using 894-vivotag750 hTfR-KI mice [preparation of test solution] Hydroxypropyl- ⁇ -cyclodextrin (Wako Pure Chemical Industries, Ltd.) was dissolved in water to a concentration of 20 w / v%, and this was prepared as a 20% hydroxypropyl- ⁇ -cyclodextrin solution.
- hTfRNo 894-vivotag 750 conjugate administration solution (No. 894 administration solution): hTfRNo. Synthesized in Example 2. To 6 ⁇ L of a 5 mM solution of 894-vivotag750 conjugate, 4.8 ⁇ L of dimethyl sulfoxide (DMSO, Sigma-Aldrich) was added, and 66 ⁇ L of a 20% hydroxypropyl- ⁇ -cyclodextrin solution was added and mixed well. To this, 48 ⁇ L of polyethylene glycol 400 was further added and mixed, and the mixture was No. The 894-administration solution was used. No. The hTfRNo. In the 894 administration solution.
- DMSO dimethyl sulfoxide
- the 894-FITC conjugate concentration is 250 ⁇ M. hTfRNo.
- 894FLIP-vivotag750 conjugate administration solution (No. 894NC administration solution): The above-mentioned hTfRNo. To 6 ⁇ L of a 5 mM solution of 894FLIP-vivotag750 conjugate, 66 ⁇ L of a 20% hydroxypropyl- ⁇ -cyclodextrin solution was added and mixed well. To this, 48 ⁇ L of polyethylene glycol 400 was further added and mixed, and the mixture was No. The 894NC administration solution was used. No. 894FLIP administration solution hTfRNo. The 894FLIP-vivotag 750 conjugate concentration is 250 ⁇ M.
- a DNA fragment having a base sequence in which a resistance gene was arranged and a targeting vector having a 5'arm sequence and a 3'arm sequence were prepared.
- the prepared targeting vector was introduced into mouse ES cells by an electroporation method.
- Mouse ES cells after gene transfer were selectively cultured in the presence of neomycin, and mouse ES cells in which the targeting vector was integrated into the chromosome by homologous recombination were selected.
- the obtained transgenic mouse ES cells were injected into an 8-cell stage embryo (host embryo) of an ICR mouse and transplanted into a pseudo-pregnant mouse (recipient mouse) obtained by mating with a mouse subjected to vas deferens ligation. bottom. Hair color was determined for the obtained offspring (chimeric mice), and individuals in which ES cells contributed to the formation of a living body with high efficiency, that is, individuals in which white hair occupies a large proportion of total hair were selected.
- mice in which the mouse transferrin receptor gene was heterozygously replaced with chimeric hTfR on the chromosome were designated as TfR-KI mice.
- mice Brain migration evaluation test using TfR-KI mice
- No. 2 for TfR-KI mice female, 12 weeks old
- hTfR. 894 administration solution or No. 894NC administration solution was rapidly administered 100 ⁇ L each into the tail vein.
- mice were anesthetized with isoflurane and perfused with saline from the left ventricle for 4 to 5 minutes for blood removal treatment.
- tissues for measuring fluorescence intensity were collected and stored in physiological saline so as not to dry.
- tissues for measuring fluorescence intensity were collected and stored in physiological saline so as not to dry.
- the fluorescence intensity was measured according to the instruction manual.
- Brain shows a picture of the brain
- Live shows a picture of the lateral left lobe area of the liver
- Kidney shows a picture of the kidney
- (4) Lung shows a picture of the lungs
- Thermal vertebrae shows a picture of the thoracic spine.
- Color scale the lowest value for (1) is 5.00 ⁇ 10 7, the maximum value of 1.3 ⁇ 10 8, (2) and (3) a minimum value for the 6.00 ⁇ 10 8, the maximum The value is 2.4 ⁇ 10 10 , the minimum value is 4.5 ⁇ 10 8 and the maximum value is 5.4 ⁇ 10 9 for (3) and (4).
- FIG. 1-1 (1) Heart shows a photograph of the heart, (2) Spleen shows a photograph of the spleen, and (3) Symus shows a photograph of the thymus.
- the color scale is the lowest value of 4.83 ⁇ 10 7, the maximum value indicates a 4.8 ⁇ 10 9.
- FIG. 1-3 (1) Quadriceps shows a photograph of the quadriceps femoris, and (2) Femur shows a photograph of the femur.
- the color scale is the lowest value of 1.5 ⁇ 10 8, the maximum value indicates a 1.5 ⁇ 10 9.
- FIG. 2 is an enlarged photograph of FIG. 1-1 (1) brain. From FIGS. 1-1, 1-2, 1-3 and FIG. 2, hTfRNo. The hTfRNo.
- Tissues in which stronger fluorescence was detected than in the 894FLIP-vivotag750 conjugate group were kidney, thoracic spine, heart, femur, quadriceps and brain.
- hTfRNo The hTfRNo.
- the tissues in which stronger fluorescence was detected than in the 894-vivotag750 conjugate group were the liver and spleen.
- mice were anesthetized with isoflurane and perfused with saline from the left ventricle for 4 to 5 minutes for blood removal treatment. Then, the brain whose fluorescence intensity was measured was collected and stored in physiological saline so as not to be dried. Using this brain tissue, immunohistochemical staining was performed using an anti-FITC antibody (MLB Bioscience).
- Immunohistochemical staining of the anti-FITC antibody in the brain tissue was performed by a known method and observed with a fluorescence microscope. The results are shown in FIG. In the figure, the red arrow points to the cerebral capillaries, and the arrowhead points to Purkinje cells. (1) shows a photograph of the # 894-FITC-administered group, and (2) shows a photograph of the group not administered # 894-FITC as a control.
- hTfR-binding special cyclic peptide No. was administered at a dose of 3.7 mg / kg every 10 minutes, for a total of 6 doses. It was administered to hTfR-KI mice conjugated with 894 and the fluorescent substance FITC, and the localization of the conjugate in the brain tissue was confirmed by immunohistochemical staining. The results are shown in FIG. In the figure, the red arrow points to the cerebral capillaries, the arrowhead points to Purkinje cells, and the yellow arrow points to dendrites. (1) shows a photograph of the # 894-FITC-administered group, and (2) shows a photograph of the group not administered # 894-FITC as a control.
- Transferrin receptor (hTfR) by SPR and hTfRNo Intermolecular interaction evaluation test with variant peptide, linker-added peptide and payload conjugate of 894 [hTfRNo. 894 variants, synthesis of linker-added peptides] hTfRNo.
- a peptide having a sequence in which several amino acids were inserted, deleted, or substituted in the amino acid sequence of 894 also referred to as a variant
- a peptide to which various linkers were bound were synthesized, and the binding ability to hTfR by SPR was similarly confirmed.
- Variant peptides were synthesized according to Example 1 unless otherwise stated in Example 9 or 10.
- the linker-added peptide was synthesized according to Example 1 except that Fmoc-NH-SAL-PEG resin (Watanabe Chemistry) was used as a resin for peptide synthesis when the linker was PEG.
- Peptides, fatty acids, and peptides to which a linker of PEG and a complex thereof was added were also synthesized according to Example 1 unless otherwise described in Example 9 or 10.
- hTfRNo It has been shown that 894 and peptides in which several amino acids are inserted, deleted or substituted in the amino acid sequence and various linkers are bound have the ability to bind to hTfR.
- Collagen Type I (Corning) was diluted with 20 mmol / L acetic acid to 50 ⁇ g / mL. One sterilized cover glass was placed in each well of the 24-well plate, diluted Collagen Type I solution was added, and the mixture was kept warm at 37 ° C. for 1 hour. Collagen Type I solution was removed and washed 3 times with PBS. 1 ⁇ 10 5 human breast cancer cells BT-549 per well were seeded and cultured overnight at 37 ° C. under 5% CO 2 conditions.
- the 11th and 12th residues were reacted twice at 25 ° C. for 20 minutes.
- the 13th residue was reacted twice at 75 ° C. for 10 minutes.
- the 15th residue was reacted at 25 ° C. for 20 minutes.
- the basic condition for de-Fmocification was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes. However, the Fmoc groups at the 2nd and 13th residues were removed by reacting at 25 ° C. for 5 minutes and then reacting for 10 minutes.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then 10 eq of chloroacetic acid and 10 eq.
- DIPCI and 10 eq of HOSu were stirred in DCM and the same amount of DMF as that of DCM was added to prepare a DCM / DMF solution of ClAcOSu, which was added to the solid phase resin and shaken at room temperature for 60 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- F-FAM-NHS prepared from 1.1 eq 5-FAM (Funakoshi), 1.2 eq EDC, and 1.2 eq HOSU was added to the reaction solution, and the mixture was stirred at room temperature for 3 hours.
- the obtained reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVaC.
- the purity of the target product was 95.3% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- HTfR_894_variant03_PEG4dk5FAM similarly synthesized the synthesis hTfR_894_3m_PEG4dk5FAM of Flip894_variant61_PEG4dk5FAM as hTfR_894_variant61_PEG4dk5FAM and negative controls, HTfR_894_3m_PEG4 cyclized, HTfR_894_variant03_PEG4, to hTfR_894_variant61_PEG4 and Flip894_variant61_PEG4, likewise the F-FAM-NHS was adjusted from 5-FAM was added, the conjugate Obtained. Regarding the various synthesized conjugates, binding to hTfR was confirmed by SPR in the same manner as in Example 2. Only Flip894_variant91_PEG4 was not bound to hTfR.
- a dilution medium (RPMI 1640 medium containing 0.5% bovine serum albumin and 20 ⁇ g / mL human transferrin holo form) was used to dilute the sample.
- the sample was diluted with a dilution medium to 100 nmol / L.
- the cells were washed twice with RPMI 1640 medium.
- RPMI 1640 medium containing 0.5% bovine serum albumin was added at 500 ⁇ L / well and allowed to stand on ice for 15 minutes, and then a diluted sample solution was added at 500 ⁇ L / well under 37 ° C. and 5% CO 2 conditions. It was allowed to stand for 3 hours.
- the cover glass was taken out from the 24-well plate, sealed on a slide glass using a Fluorescent Monitoring Medium (Agilent), and allowed to stand overnight at room temperature in the dark.
- An inverted fluorescence microscope DMI6000B (Leica Microsystems, Inc.) was used for observation, and observation was performed at wavelengths for FITC and DAPI detection. The results are shown in FIG.
- the scale bar in the figure indicates 50 ⁇ m. As can be confirmed in FIG.
- hTfR_894_3m_PEG4dk5FAM, hTfR_894_variant03_PEG4dk5FAM, and hTfR_894_variant61_PEG4dk5FAM were confirmed to be intracellularly transferred, but hTfR did not have intracellular transfer to hTfR. From this result, it was shown that the variant having the ability to bind to hTfR_894 and hTfR translocates into the cell via the binding to hTfR.
- the peptide of interest was synthesized by starting with the removal of Fmoc using Siever amide resin (Watanabe Kagaku, 0.52 mmol / g, 0.19 g). At that time, Styrene manufactured by Biotage was used as an automatic synthesizer, and synthesis was performed according to the manufacturer's manual. The basic condition of the condensation reaction was to repeat the reaction at 75 ° C. for 20 minutes twice. However, when the 15th and 16th residues were introduced, the reaction was carried out at room temperature for 60 minutes and 15 minutes, respectively. Further, when PEG was introduced, the reaction was carried out once, and when the 11th amino acid was introduced, the condensation reaction was carried out three times.
- the basic condition for de-Fmocification was to react in a DMF solution of piperazine (5%) and Oxima pure (0.2M) at 50 ° C. for 5 minutes, and then react again for 15 minutes.
- the Fmoc group at the 15th and 16th residues was removed by reacting at 25 ° C. for 5 minutes and then reacting again for 15 minutes.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then adding 5 equal amounts of ClAcOSu. This was done by adding a DMF solution and shaking at room temperature for 60 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the obtained reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVaC. Subsequently, using the obtained solid-phase resin, side chain deprotection, excision from the solid-phase resin, and cyclization reaction were carried out according to the above-mentioned general method.
- the purity of the target product was 91.5% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- Analytical condition B: Retention time 12.8 minutes: Gradient (% B conc); 20-60% over 20 minutes, then 60-95% over 1 minute, then 95% over 5 minutes.
- ESI-MS (+) Observed value m / z 899.6 (M + 3H) 3+
- the resin was mixed 3 times with DMF (10 mL, Kishida Chemistry), 3 times with DCM (10 mL, Kishida Chemistry), and 3 times with diethyl ether (10 mL, Kishida Chemistry). After washing, it was dried under reduced pressure to obtain Fmoc-CyS [CH 2 COO-Trt (2-Cl) -resin] -PEG8Me (1.686 g, 94%).
- the peptide of interest was synthesized by starting with the removal of the Fmoc group by the above-mentioned general method.
- Fmoc was removed by reacting with a 20% piperidine DMF solution at room temperature for 5 minutes and then reacting again for 15 minutes.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then adding a triequal amount of chloroacetic acid.
- 3 equal volumes of HCTU DMF solution (0.43 M) and 3 equal volumes of DIPEA DMF solution (1.57 M) to the solid phase resin and shaking at room temperature for 30 minutes. went.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-HFIP / DCM (1/4) was added to the reaction vessel containing the solid phase resin, and the mixture was shaken at room temperature for 90 minutes. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken with a cocktail for cutting, the solution component was recovered from the frit, and the operation of mixing with the above-mentioned filtrate was repeated three times.
- the condensation reaction was carried out twice at 25 ° C. for 30 minutes.
- the 13th and 14th residues were performed twice at 75 ° C. for 10 minutes.
- the 15th residue was performed once at 25 ° C. for 30 minutes.
- the 16th residue was subjected to once for 120 minutes at 25 ° C. using Fmoc-AA-OH / HATU / DIEA (3eq / 3eq / 6eq).
- the basic condition for de-Fmocization was to react in 20% piperidine in DMF at 75 ° C. for 3 minutes. However, the Fmoc group at the 13th and 15th residues was removed by reacting at 25 ° C. for 5 minutes and then for 10 minutes.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then using 10 eq of chloroacetic acid. 10 eq of DIPCI and 10 eq of HOSu are stirred in DCM and the same amount of NMP as DCM is added to prepare a DCM / NMP solution (0.2 M) of ClAcOSu, which is added to the solid phase resin and shaken at room temperature for 60 minutes. rice field.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times and dried under reduced pressure. Subsequently, a reactant cocktail (a mixture of TFA / H 2 O / TIS / DODT in a volume ratio of 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin, and the temperature was changed to room temperature. Was shaken for 60 minutes. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- a reactant cocktail a mixture of TFA / H 2 O / TIS / DODT in a volume ratio of 92.5: 2.5: 2.5: 2.5
- the purity of the target product was 77.0% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the reaction was carried out twice at 75 ° C. for 30 minutes.
- the 9th residue was reacted twice at 90 ° C. for 10 minutes.
- the 11th and 12th residues were reacted twice at 50 ° C. for 15 minutes.
- the 13th residue was reacted twice at 90 ° C. for 3 minutes.
- the 15th residue was reacted once at 50 ° C. for 15 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes. However, the removal of Fmoc at the 2nd residue, the 4th residue and the 13th residue was repeated twice at 25 ° C. for 5 minutes.
- the Fmoc group of the ⁇ -amino group was removed from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step was retained by the method described above, and then 5 eq of chloroacetate in DMF, This was performed by adding 5 eq HATU in DMF and 10 eq DIEA in DMF to the solid phase resin and shaking at room temperature for 30 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure.
- the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 60 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate. When this filtrate was added to a mixed solvent of excess diethyl ether / hexane (1/1) cooled to 0 ° C., a cloudy precipitate was formed.
- the mixture was centrifuged (9000 rpm, 1.5 min) and the solution was decanted.
- the obtained solid was washed again with a small amount of diethyl ether cooled to 0 ° C., and then dried under reduced pressure.
- the obtained solid was used for the next cyclization reaction.
- the peptide cyclization reaction was dissolved in DMSO so that the final concentration of the peptide was 5 mM based on the number of moles of the solid-phase resin, 10 equal amounts of triethylamine was added, and the mixture was shaken at room temperature for about 24 hours.
- the obtained reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVaC.
- the purity of the target product was 93.1% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the 1st and 3rd residues were reacted once at 75 ° C. for 20 minutes.
- the second and fourth residues were reacted twice at 75 ° C. for 30 minutes.
- the 9th residue, the 10th residue, and the 11th residue were reacted twice at 75 ° C. for 20 minutes.
- the 12th residue was reacted twice at 25 ° C. for 30 minutes.
- the 13th residue was reacted twice at 75 ° C. for 10 minutes.
- the 15th residue was reacted once at 25 ° C. for 30 minutes.
- the basic condition for removing Fmoc was to react it with a 20% piperidine DMF solution at 75 ° C. for 3 minutes.
- the removal of Fmoc at the 2nd residue, the 4th residue and the 13th residue was repeated twice for 5 minutes at 25 ° C.
- the Fmoc group of the ⁇ -amino group was removed from the solid-phase resin containing the Fmoc-protected peptide obtained in the previous step by the method described above, and then 5 eq of ClAcOH in DMF, 5 eq. HATU in DMF and 10 eq of DIEA in DMF were added to the solid phase resin and shaken at 25 ° C. for 30 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 60 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the peptide cyclization reaction was dissolved in DMSO so that the final concentration of the peptide was 5 mM based on the number of moles of the solid-phase resin, 10 equal amounts of triethylamine was added, and the mixture was shaken at room temperature for about 16 hours.
- the obtained reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVaC.
- the second and fourth residues were reacted twice at 75 ° C. for 30 minutes.
- the 10th and 11th residues were reacted twice at 90 ° C. for 10 minutes.
- the 12th residue was reacted twice at 50 ° C. for 15 minutes.
- the 13th residue was reacted twice at 90 ° C. for 3 minutes.
- the 15th residue was reacted once at 50 ° C. for 15 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes. However, the removal of Fmoc at the 2nd residue, the 4th residue and the 13th residue was repeated twice at 25 ° C. for 5 minutes.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then using 10 eq of chloroacetic acid and 5 eq. DIPCI, 5 eq of HOSu was stirred in DCM and the same amount of DMF as DCM was added to prepare a DCM / DMF solution (0.2 M) of ClAcOSu, which was added to a solid phase resin and shaken at room temperature for 60 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the peptide cyclization reaction was dissolved in DMSO so that the final concentration of the peptide was 5 mM based on the number of moles of the solid-phase resin, 5 eq of triethylamine was added, and the mixture was shaken at room temperature for about 14 hours.
- the obtained reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVaC.
- the purity of the target product was 87.5% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- Fmoc-D-Glu (OtBu) -wang resin (Watanabe Kagaku, 0.68 mmol / g, 184 mg)
- the peptide of interest was synthesized by starting with the removal of Fmoc according to a general method.
- CEM's Liberty Blue HT was used as a solid-phase synthesizer, and the procedure was performed according to the manufacturer's manual.
- the basic condition of the condensation reaction was that HATU was used as a condensing agent and the reaction was carried out twice at 75 ° C. for 10 minutes. However, the second residue was reacted twice at 75 ° C. for 30 minutes. The fourth residue was reacted twice at 75 ° C. for 30 minutes.
- the 6th residue was reacted once at 75 ° C. for 10 minutes.
- the 7th residue was reacted once at 75 ° C. for 10 minutes.
- the 8th residue was reacted once at 75 ° C. for 10 minutes.
- the 10th residue was reacted once at 75 ° C. for 10 minutes.
- the 11th residue was reacted twice at 30 ° C. for 30 minutes.
- the 12th residue was reacted once at 30 ° C. for 30 minutes.
- the 15th residue was reacted once at 30 ° C. for 30 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes.
- Fmoc removal was performed by reacting twice at room temperature for 5 minutes.
- chloroacetic acid 5 equal amount
- DIPCI 5 equal amount
- HOSu 5 equal amount
- the mixture was shaken at room temperature for 60 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times and dried under reduced pressure.
- the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate. Addition of this filtrate to excess diethyl ether / hexane (3/1) cooled to 0 ° C. resulted in a cloudy precipitate.
- the mixture was centrifuged (9500 rpm, 1 min), the supernatant was decanted, washed with diethyl ether cooled to 0 ° C., and the obtained solid was used for the next cyclization reaction.
- the peptide cyclization reaction was dissolved in DMSO so that the final concentration of the peptide was 4 mM based on the number of moles of the solid-phase resin, 10 equal amounts of triethylamine was added, and the mixture was shaken at room temperature for about 16 hours.
- the obtained reaction solution was concentrated under reduced pressure using GenevaC EZ-2 Elite.
- the purity of the target product was 88.60% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- ESI-MS (+) Observed value m / z 1137.23 (M + 2H) 2+
- the second and fourth residues were reacted twice at 75 ° C. for 45 minutes.
- the 11th and 12th residues were repeatedly reacted twice at 50 ° C. for 15 minutes.
- the reaction was carried out twice at 90 ° C. for 3 minutes.
- the basic condition for removing Fmoc was to react it with a 20% piperidine DMF solution at 75 ° C. once for 3 minutes.
- the removal of Fmoc at the 2nd residue, the 4th residue and the 13th residue was repeated twice at 25 ° C. for 5 minutes.
- the resin was suspended in DCM, Pd (PPh 3 ) 4 / PhSiH 3 (0.2 eq / 10 eq) was added, and the mixture was shaken at room temperature for 1 hour.
- Pd (PPh 3 ) 4 / PhSiH 3 0.2 eq / 10 eq
- the solid-phase resin containing the Fmoc-protected peptide obtained in the previous step was washed 3 times with DMF and 3 times with DCM, and then the Fmoc group of the ⁇ -amino group was removed by the method described above. Then, 5 eq of chloroacetic acid in DMF, 5 eq of HATU in DMF, and 10 eq of DIEA in DMF were added, and the mixture was shaken at room temperature for 30 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVaC.
- the obtained mixture was dissolved in DMSO (4 mL), HOSU (10 eq) and EDC HCl (10 eq) were added, and the mixture was stirred at room temperature for 2 hours.
- the purity of the target product was 97.9% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the reaction was carried out twice at 75 ° C. for 45 minutes.
- the reaction was repeated twice at 50 ° C. for 15 minutes.
- the reaction was carried out twice at 90 ° C. for 3 minutes.
- the basic condition for removing Fmoc was to react it with a 20% piperidine DMF solution at 75 ° C. once for 3 minutes.
- the removal of Fmoc at the 2nd residue, the 4th residue and the 13th residue was repeated twice at 25 ° C. for 5 minutes.
- the resin was suspended in DCM, Pd (PPh 3 ) 4 / PhSiH 3 (0.2 eq / 10 eq) was added, and the mixture was shaken at room temperature for 1 hour.
- the solid phase resin was washed 3 times with DMF and 3 times with DCM, and then dried under reduced pressure.
- the Fmoc group of the ⁇ -amino group is removed from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then 5 eq of chloroacetate in DMF, 5 eq. HATU in DMF of 10 eq of DIEA in DMF was added, and the mixture was shaken at room temperature for 30 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure.
- the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate. When this filtrate was added to a mixed solvent of excess diethyl ether / hexane (1/1) cooled to 0 ° C., a cloudy precipitate was formed.
- the mixture was centrifuged (10000 rpm, 1 min) and the solution was decanted.
- the obtained solid was washed again with a small amount of diethyl ether cooled to 0 ° C., and then dried under reduced pressure.
- the obtained solid was used for the next cyclization reaction.
- the peptide cyclization reaction was dissolved in DMSO so that the final concentration of the peptide was 5 mM based on the number of moles of the solid-phase resin, 10 eq of triethylamine was added, and the mixture was shaken overnight at room temperature.
- the reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVaC.
- the second and fourth residues were reacted twice at 75 ° C. for 30 minutes.
- the 11th and 12th residues were reacted twice at 90 ° C. for 10 minutes.
- the 13th residue was reacted twice at 75 ° C. for 10 minutes.
- the 15th residue was reacted once at 25 ° C. for 20 minutes.
- the basic condition for removing Fmoc was to react it with a 20% piperidine DMF solution at 75 ° C. for 3 minutes.
- the reaction was carried out at 25 ° C. for 5 minutes and then the reaction was carried out at 25 ° C. for 10 minutes.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then chloroacetic acid (10 equal amounts).
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the peptide cyclization reaction was carried out by dissolving the peptide in a 50% MeCN aqueous solution so that the final concentration of the peptide was 5 mM based on the number of moles of the solid-phase resin, adding 5 equal amounts of triethylamine, and shaking at room temperature for about 14 hours.
- the obtained reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVaC.
- the purity of the target product was 98.2% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then chloroacetic acid (5 equal amounts).
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the purity of the target product was 95.4% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the second and fourth residues were reacted twice at 75 ° C. for 30 minutes.
- the 11th and 12th residues were repeatedly reacted twice at 25 ° C. for 20 minutes.
- the 13th residue was reacted twice at 75 ° C. for 10 minutes.
- the 15th and 22nd residues were reacted once at 25 ° C. for 30 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes. However, the Fmoc removal at the 2nd residue, the 4th residue and the 13th residue was carried out at 25 ° C. for 5 minutes and then at room temperature for 10 minutes.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then using 10 eq of chloroacetic acid and 10 eq of the solid phase resin.
- DIPCI and 10 eq of HOSu were stirred in DCM and the same amount of DMF as that of DCM was added to prepare a DCM / DMF solution (0.2 M) of ClAcOSu, which was added to a solid phase resin and shaken at room temperature for 60 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 90: 2.5: 2.5: 5) was added to the reaction vessel containing the solid phase resin, and 90 at room temperature. Shake for a minute. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 90: 2.5: 2.5: 5
- the reaction solution was collected by filtration from the frit.
- the solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-ment
- the obtained mixture was dissolved in DMSO, 3 eq of silver acetate was added, and the mixture was shaken for 3 hours. After adding a 2M DTT aqueous solution (11eq), the mixture was centrifuged to collect the supernatant, and then concentrated under reduced pressure to obtain a crude product.
- the peptide of interest was synthesized, starting with the removal of Fmoc according to a general method.
- CEM's Liberty Blue HT was used as a solid-phase synthesizer, and the procedure was performed according to the manufacturer's manual.
- the basic condition of the condensation reaction was to use DIPCI and Oxyma pure as a condensing agent and react once at 90 ° C. for 3 minutes. However, the 11th and 12th residues were repeatedly reacted twice at 50 ° C. for 15 minutes. The 13th residue was repeatedly reacted twice at 90 ° C. for 3 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes. However, for the 13th residue, Fmoc was removed by reacting twice at 25 ° C. for 5 minutes. The obtained resin was washed with DMF 5 times and with methylene chloride 3 times and dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit.
- the solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- this filtrate was added to a mixed solvent of excess diisopropyl ether and hexane cooled to 0 ° C., a cloudy precipitate was formed.
- the mixture was centrifuged (9000 rpm, 2 min) and the supernatant was decanted.
- the obtained solid was washed with ice-cooled diethyl ether and then dried. The obtained solid was used for the next cyclization reaction.
- the peptide cyclization reaction is carried out by dissolving the peptide in DMF so that the final concentration of the peptide is 5 mM based on the number of moles of the solid-phase resin, and then adding 1.5 equal amounts of HATU and 3 equal amounts of triethylamine to about room temperature. It was shaken for 1 hour. The obtained reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVaC.
- the purity of the target product was 96.8% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the Fmoc group of the ⁇ -amino group was removed from the solid-phase resin containing the Fmoc-protected peptide obtained in the previous step by the method described above, and then 5 equal amounts of chloroacetic acid were added.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the obtained reaction solution was concentrated under reduced pressure using GenevaC EZ-2 Elite.
- the final concentration of the peptide in the obtained mixture was dissolved in DMF so as to be 25 mM based on the number of moles of the solid phase resin, 1 equivalent HATU and 3 equivalent DIEA were added, and the mixture was shaken at room temperature for about 30 minutes. ..
- the purity of the target product was 94.8% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the reaction was carried out twice at 90 ° C. for 3 minutes.
- the reaction was carried out twice at 50 ° C. for 15 minutes.
- the reaction was carried out once at 50 ° C. for 15 minutes.
- the basic condition for removing Fmoc was to react it with a 20% piperidine DMF solution at 75 ° C. once for 3 minutes.
- the removal of Fmoc at the 2nd residue, the 4th residue, and the 13th residue was repeated twice at 25 ° C. for 5 minutes.
- the solid phase resin was washed successively with DMF and DCM, dried under reduced pressure, swollen with DCM, 10 equal amounts of PhSiH 3 and 0.2 equal amounts of Pd (PPh 3 ) 4 were added, and the mixture was shaken at room temperature for 1 hour.
- the solid phase resin was washed 5 times with DCM, 5 times with DMF and 3 times with diethyl ether and dried.
- the solid phase resin was swollen with NMP, 5 equal volumes of HATU and 5 equal volumes of DIEA were added, and the mixture was shaken at room temperature for 30 minutes. After washing the resin, 5 equal amounts of HATU and 5 equal amounts of DIEA were added again, and the mixture was shaken at room temperature for 30 minutes.
- the solid phase resin was washed 5 times with DCM, 5 times with DMF and 3 times with diethyl ether.
- the Fmoc group of the ⁇ -amino group was removed from the solid-phase resin containing the Fmoc-protected peptide obtained in the previous step by the method described above, and then 5 equal amounts of chloroacetic acid were added.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- Fmoc-Gly-wang resin (Watanabe Kagaku, 0.78 mmol / g, 1.31 g)
- the peptide of interest was synthesized by starting with the removal of the Fmoc group by the above-mentioned general method.
- Liberty Blue manufactured by CEM was used as a solid-phase synthesizer, and the synthesis was carried out according to the manufacturer's manual.
- Fmoc-AA / HATU / DIEA (4.2 equivalents / 4 equivalents / 8 equivalents) with respect to 1 equivalent of the resin, and repeat twice in DMF at 60 ° C. for 15 minutes. The reaction was carried out.
- the reaction was carried out once at 25 ° C. for 30 minutes.
- the reaction was repeated twice at 25 ° C. for 20 minutes.
- the reaction was carried out once at 60 ° C. for 15 minutes.
- the reaction was carried out once at 60 ° C. for 15 minutes.
- the reaction was carried out once at 60 ° C. for 15 minutes.
- the reaction was carried out twice at 60 ° C. for 45 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the purity of the target product was 92.2% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the purity of the target product was 97.3% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then 5 equal amounts of chloroacetate in DMF. This was carried out by adding 5 equal amounts of HATU in DMF and 10 equal amounts of DIEA in DMF and shaking at 25 ° C. for 30 minutes. To deprotect the side chains and cut out from the solid-phase resin, the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure.
- the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 60 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate. When this filtrate was added to a mixed solvent of excess diisopropyl ether / hexane (1/1) cooled to 0 ° C., a cloudy precipitate was formed.
- the mixture was centrifuged (9000 rpm, 2 min) and the solution was decanted.
- the obtained solid was washed again with a small amount of diethyl ether cooled to 0 ° C., and then dried under reduced pressure.
- the obtained solid was used for the next cyclization reaction.
- the peptide cyclization reaction was dissolved in DMSO so that the final concentration of the peptide was 5 mM based on the number of moles of the solid-phase resin, 10 equal amounts of triethylamine was added, and the mixture was shaken overnight at room temperature.
- the reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVac.
- the obtained solid is dissolved in DMSO so that the final concentration of the peptide is 5 mM based on the number of moles of the solid-phase resin, and then MePEG4c (1.2 equal amount), HATU (1.1 equal amount), DIEA (3). Equal amount) was added and the mixture was shaken at room temperature for 1 hour.
- the purity of the target product was 92.3% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes. However, for the 13th and 15th residues, Fmoc removal was carried out by reacting at 25 ° C. for 5 minutes and then reacting for 10 minutes.
- the introduction of the chloroacetyl group is carried out with respect to the resin obtained in the previous step, 5 equal amounts of chloroacetic acid in DMF solution (0.2 M), 5 equal amounts of HATU DMF solution (0.5 M), and 10 equal amounts of DIPEA.
- the solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- this filtrate was added to a mixed solvent of excess diethyl ether and hexane cooled to 0 ° C., a cloudy precipitate was formed.
- the mixture was centrifuged (10000 rpm, 1 min) and the supernatant was decanted.
- the obtained solid was washed with ice-cooled diethyl ether and then dried. The obtained solid was used for the next cyclization reaction.
- the peptide cyclization reaction was dissolved in DMSO so that the final concentration of the peptide was 5 mM based on the number of moles of the solid-phase resin, 6 equal amounts of triethylamine was added, and the mixture was shaken overnight at room temperature.
- 1.1 equivalent of FAM-OSu DMSO solution (0.71M) was added to the obtained reaction solution, and the mixture was stirred for 30 minutes.
- AcOH was added to the reaction solution and quenched, and the solvent was concentrated under reduced pressure.
- the purity of the target product was 97.1% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the 2nd and 13th residues were reacted twice for 10 minutes at 75 ° C.
- the 11th and 12th residues were repeatedly reacted twice at 25 ° C. for 20 minutes.
- the 15th and 17th residues were reacted once at 25 ° C. for 30 minutes.
- the basic condition for removing Fmoc was to react it with a 20% piperidine DMF solution at 75 ° C. for 3 minutes.
- the Fmoc removal at the 2nd residue, the 13th residue, the 15th residue, and the 17th residue was carried out at 25 ° C. for 5 minutes and then at 25 ° C. for 10 minutes.
- the Fmoc group of the ⁇ -amino group was removed from the solid-phase resin containing the Fmoc-protected peptide obtained in the previous step by the method described above, and then 5 equal amounts of chloroacetic acid in. This was performed by adding 5 equal amounts of HATU in DMF and 10 equal amounts of DIEA in DMF to the solid phase resin and shaking at room temperature for 30 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure.
- the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate. When this filtrate was added to a mixed solvent of excess diethyl ether / hexane (1/1) cooled to 0 ° C., a cloudy precipitate was formed.
- the mixture was centrifuged (10000 rpm, 1 min), the solution was decanted, the solid was washed with diethyl ether cooled to 0 ° C., and then dried under reduced pressure. The obtained solid was used for the next cyclization reaction.
- the peptide cyclization reaction was dissolved in DMSO so that the final concentration of the peptide was 5 mM based on the number of moles of the solid-phase resin, 6 equal amounts of triethylamine was added, and the mixture was shaken overnight at room temperature.
- the obtained reaction solution was subjected to Savant Explorer SpeedVaC. Was concentrated under reduced pressure.
- the obtained mixture was dissolved in DMSO, 3 equal amounts of silver acetate were added, and the mixture was shaken for 3 hours. After adding 10 equal volumes of DTT, the supernatant was collected by centrifugation.
- the purified intermediate peptide (29.8 mg, 10.6 ⁇ mol) is dissolved in DMSO (424 ⁇ L), 1.1 equal amounts of fluorescein-5-maleimide and 5 equal amounts of DIEA are added, and the mixture is stirred for 1 hour and then quenched with acetic acid. bottom.
- the purity of the target product was 82.8% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the 12th residue was repeatedly reacted twice at 25 ° C. for 20 minutes.
- the 13th residue was reacted twice at 75 ° C. for 10 minutes.
- the 15th and 22nd residues were reacted once at 25 ° C. for 30 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes. However, for the removal of Fmoc at the 4th and 13th residues, the reaction was carried out at 25 ° C. for 5 minutes and then at room temperature for 10 minutes.
- the Fmoc group of the ⁇ -amino group was removed from the solid-phase resin containing the Fmoc-protected peptide obtained in the previous step by the method described above, and then 10 equal amounts of chloroacetic acid were added.
- Stir 10 equal amounts of DIPCI and 10 equal amounts of HOSu in DCM add the same amount of DMF as DCM to prepare a DCM / DMF solution (0.2M) of ClAcOSu, add to solid phase resin, and shake at room temperature for 60 minutes. I went by doing.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 90: 2.5: 2.5: 5) was added to the reaction vessel containing the solid phase resin, and 90 at room temperature. Shake for a minute. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 90: 2.5: 2.5: 5
- the reaction solution was collected by filtration from the frit.
- the solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-ment
- the obtained mixture was dissolved in DMSO (20 mL), 3 equal volumes of silver acetate were added, and the mixture was shaken for 3 hours. A 2M DTT aqueous solution (11 equal volumes) was added, and the mixture was centrifuged to collect the supernatant and then concentrated under reduced pressure to obtain a crude product.
- the purity of the target product was 94.8% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- Peptides or linker-added peptides were synthesized as follows. The synthesized peptides and linker-added peptides are shown in Table 5, and the linkers are shown in Table 6.
- the peptide of interest was synthesized by starting with the removal of Fmoc using Sieber amide resin (Watanabe Kagaku, 0.48 mmol / g, 0.52 g). At that time, Liberty Blue manufactured by CEM was used as an automatic synthesizer, and synthesis was performed according to the manufacturer's manual. The synthesis was carried out in the same manner as in Example 1.
- the purity of the target product was 94.20% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the following analytical conditions.
- the peptide of interest was synthesized by starting with the removal of Fmoc using Sieber amide resin (Watanabe Kagaku, 0.48 mmol / g, 0.52 g). At that time, CEM's Liberty Blue HT was used as an automatic synthesizer, and synthesis was performed according to the manufacturer's manual. The synthesis was carried out in the same manner as in Example 1.
- the purity of the target product was 97.61% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the following analytical conditions.
- the peptide of interest was synthesized by starting with the removal of Fmoc using Sieber amide resin (Watanabe Kagaku, 0.48 mmol / g, 0.52 g). At that time, Liberty Blue manufactured by CEM was used as an automatic synthesizer, and synthesis was performed according to the manufacturer's manual. The synthesis was carried out in the same manner as in Example 1.
- the purity of the target product was 97.52% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the following analytical conditions.
- the peptide of interest was synthesized by starting with the removal of Fmoc using Sieber amide resin (Watanabe Kagaku, 0.48 mmol / g, 0.52 g). At that time, Liberty Blue manufactured by CEM was used as an automatic synthesizer, and synthesis was performed according to the manufacturer's manual. The synthesis was carried out in the same manner as in Example 1.
- the purity of the target product was 98.02% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the following analytical conditions.
- the peptide of interest was synthesized by starting with the removal of Fmoc using Sieber amide resin (Watanabe Kagaku, 0.48 mmol / g, 0.52 g). At that time, Liberty Blue manufactured by CEM was used as an automatic synthesizer, and synthesis was performed according to the manufacturer's manual. The synthesis was carried out in the same manner as in Example 1.
- the purity of the target product was 96.34% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the following analytical conditions.
- the peptide of interest was synthesized by starting with the removal of Fmoc using Sieber amide resin (Watanabe Kagaku, 0.48 mmol / g, 0.52 g). At that time, Liberty Blue manufactured by CEM was used as an automatic synthesizer, and synthesis was performed according to the manufacturer's manual. The synthesis was carried out in the same manner as in Example 1.
- the purity of the target product was 96.03% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the following analytical conditions.
- the 10th, 11th, and 13th residues were repeatedly reacted twice for 10 minutes at 75 ° C.
- the 12th residue was reacted twice at 25 ° C. for 20 minutes.
- the 15th residue was reacted once at 25 ° C. for 20 minutes.
- the basic condition for removing Fmoc was to react it with a 20% piperidine DMF solution at 75 ° C. for 3 minutes. However, the Fmoc removal at the 2nd residue, the 4th residue and the 13th residue was carried out at 25 ° C. for 5 minutes and then at 25 ° C. for 10 minutes.
- the Fmoc group of the ⁇ -amino group was removed from the solid-phase resin containing the Fmoc-protected peptide obtained in the previous step by the method described above, and then 10 equal amounts of chloroacetic acid were added.
- Stir 10 equal amounts of DIPCI and 10 equal amounts of HOSu in DCM add the same amount of DMF as DCM to prepare a DCM / DMF solution (0.2M) of ClAcOSu, add to solid phase resin, and shake at room temperature for 60 minutes. I went by doing.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the purity of the target product was 92.8% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- Fmoc-PEG4c-Abu-Alko resin prepared according to more general solid phase synthesis than Fmoc-Abu (4) -Alko resin (Watanabe Kagaku, 1.00 mmol / g, 0.1 g) was used in the above-mentioned general method. Therefore, starting with the removal of Fmoc, a C-terminal carboxylic acid peptide was synthesized. At that time, Liberty Blue manufactured by CEM was used as a solid-phase synthesizer, and the synthesis was carried out according to the manufacturer's manual.
- the introduction of the chloroacetyl group is carried out after removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then 0.2M chloroacetate.
- DMF 5 equal amounts
- 0.5M HATU in DMF 5 equal amounts
- 1M DIEA in DMF 10 equal amounts
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times and dried under reduced pressure.
- a reactant cocktail (a mixture of TFA / H 2 O / TIS / DODT in a volume ratio of 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin, and the temperature was changed to room temperature. Was shaken for 90 minutes. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate. Addition of this filtrate to excess diethyl ether / hexane (1/1) cooled to 0 ° C. resulted in a cloudy precipitate.
- the mixture was centrifuged (10000 rpm, 1 min) and the solution was decanted.
- the obtained solid was washed again with a small amount of diethyl ether cooled to 0 ° C., and the obtained solid was dried and used for the next cyclization reaction.
- the peptide cyclization reaction was dissolved in DMSO so that the final concentration of the peptide was 5 mM based on the number of moles of the solid-phase resin, 10 equal amounts of triethylamine was added, and the mixture was stirred at room temperature for about 17 hours.
- the reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVac.
- the purity of the target product was 87.4% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the 1st, 9th, 10th, 13th, and 14th residues were reacted twice at 75 ° C. for 10 minutes.
- the 11th and 12th residues were reacted twice at 30 ° C. for 20 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes.
- the reaction was carried out at 25 ° C. for 5 minutes and then at 25 ° C. for 10 minutes.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then chloroacetic acid (5 equal amounts).
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 60 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the peptide of interest was synthesized by starting with the removal of the Fmoc group by the above-mentioned general method.
- Liberty Blue manufactured by CEM was used as a solid-phase synthesizer, and the synthesis was carried out according to the manufacturer's manual.
- the basic condition of the condensation reaction was that HATU was used as a condensing agent and the reaction was carried out once at 75 ° C. for 10 minutes. However, when introducing the 15th residue, the reaction was carried out once at 25 ° C. for 20 minutes. When introducing the 13th residue, the reaction was repeated twice at 75 ° C.
- the DMF solution (0.2 M) of the above was added with 4 equal volumes of the DMF solution of DIPCI (0.5 M) and 4 equal volumes of the DMF solution of HOSu (0.5 M), and the mixture was shaken at room temperature for 60 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the reaction solution was collected by filtration from the frit.
- the solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate. Addition of this filtrate to excess diisopropyl ether cooled to 0 ° C. resulted in a cloudy precipitate.
- the mixture was collected by filtration, washed with diethyl ether, and dried under reduced pressure. The obtained solid was used for the next cyclization reaction.
- peptide cyclization reaction For the peptide cyclization reaction, dissolve in DMSO / IPA / H 2 O (90/5/5) so that the final concentration of the peptide is 5 mM based on the number of moles of the solid-phase resin, and then add 5 equal amounts of triethylamine. The mixture was stirred at room temperature for about 16 hours. The obtained reaction solution was concentrated under reduced pressure using GenevaC HT-12.
- the purity of the target product was 90.6% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the 3rd, 4th, 8th, 10th, 13th, and 14th residues were reacted twice at 75 ° C. for 10 minutes.
- the 11th and 12th residues were reacted twice at 50 ° C. for 20 minutes.
- the second residue was reacted at 75 ° C. for 60 minutes three times.
- the first residue was reacted twice at 75 ° C. for 20 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes. However, for the 15th residue, the 16th residue, and the 17th residue, Fmoc removal was carried out by reacting at room temperature for 5 minutes and then at 75 ° C. for 3 minutes.
- the Fmoc group of the ⁇ -amino group was removed from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step was retained by the method described above. Then, chloroacetic acid (5 equal amounts), DIPCI (5 equal amounts), and HOSu (5 equal amounts) were stirred in DCM and the same amount of DMF as DCM was added to prepare a DCM / DMF solution (0.15 M) of ClAcOSu. , And shaken at room temperature for 180 minutes in addition to the solid phase resin.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times and dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 90 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the purity of the target product was 94.1% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the mixture was centrifuged (9000 rpm, 2 min) and the solution was decanted.
- the obtained solid was washed with diethyl ether cooled to 0 ° C., centrifuged (9000 rpm, 2 min), and the solution was decanted.
- the purity of the target product was 96.1% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the 5th, 6th, 7th, 16th, 17th, 19th, 21st, and 22nd residues are reacted once at 75 ° C for 10 minutes. went.
- the 11th residue was reacted twice at 50 ° C. for 15 minutes.
- the 12th, 18th, and 20th residues were reacted once at 50 ° C. for 15 minutes.
- the 15th residue was reacted once at 50 ° C. for 15 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes. However, for the 2nd and 13th residues, Fmoc removal was performed by reacting twice at room temperature for 5 minutes.
- chloroacetic acid 5 equal amount
- DIPCI 5 equal amount
- HOSu 5 equal amount
- ClAcOSu's DCM / DMF solution 0. 15M
- the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 150 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate. When this filtrate was added to a mixed solvent of excess diethyl ether and hexane cooled to 0 ° C., a cloudy precipitate was formed.
- the mixture was centrifuged (9500 rpm, 1 min), the supernatant was decanted, washed with diethyl ether cooled to 0 ° C., and the obtained solid was used for the next cyclization reaction.
- peptide cyclization reaction dissolve in DMSO (5% water content) so that the final concentration of the peptide is 5 mM based on the number of moles of the solid phase resin, add 7 equal amounts of triethylamine, and shake at room temperature for about 3 hours. bottom.
- DMSO 5% water content
- the purity of the target product was 95.4% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the peptide of interest was synthesized by starting with the removal of Fmoc using Siever amide resin (Watanabe Kagaku, 0.65 mmol / g, 0.54 g). At that time, CEM's Liberty Blue HT was used as an automatic synthesizer, and synthesis was performed according to the manufacturer's manual.
- the basic condition for de-Fmocization was to react with a 20% piperidine DMF solution at 75 ° C. for 3 minutes. However, the Fmoc groups at the 2nd and 13th residues were removed by reacting twice at 25 ° C. for 5 minutes.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then 5 equal amounts of ClAcOH in.
- the solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate. Addition of this filtrate to excess diisopropyl ether / hexane (1/1) cooled to 0 ° C. resulted in a cloudy precipitate. The mixture was centrifuged (10000 rpm, 1 min) and the solution was decanted. The obtained solid was washed again with a small amount of diethyl ether cooled to 0 ° C., and the obtained solid was used for the next cyclization reaction.
- the peptide cyclization reaction was dissolved in 5% hydrous DMSO so that the final concentration of the peptide was 5 mM based on the number of moles of the solid phase resin, 10 equal amounts of triethylamine was added, and the mixture was shaken at room temperature for about 16 hours.
- the obtained reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVaC.
- a DMSO solution 22 mM, 160 ⁇ L
- DIEA DIEA
- the purity of the target product was 98.7% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the 15th residue was reacted twice at 25 ° C. for 15 minutes.
- the 16th residue was reacted at 25 ° C. for 60 minutes.
- De-Fmocification was carried out by reacting with a 20% piperidine DMF solution at 25 ° C. for 5 minutes and then reacting for 15 minutes.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then 5 equal amounts of chloroacetate.
- the peptide cyclization reaction is carried out by dissolving the peptide in 9% hydrous DMSO so that the final concentration of the peptide is 5 mM based on the number of moles of the solid-phase resin, adding 10 equal amounts of triethylamine, and shaking at room temperature for about 1.5 hours. bottom.
- the obtained reaction solution was concentrated under reduced pressure using Savant Explorer SpeedVaC.
- the purity of the target product was 82.7% calculated from the area ratio of the LC / MS (UV wavelength 225 nm) chromatogram under the analysis condition B.
- the second and fourth residues were reacted twice at 75 ° C. for 30 minutes.
- the 11th and 12th residues were repeatedly reacted twice at 25 degrees for 20 minutes.
- the 13th residue was reacted twice at 75 ° C. for 10 minutes.
- the 15th and 22nd residues were reacted once at 25 ° C. for 30 minutes.
- the basic condition for removing Fmoc was to react it with a 20% piperidine DMF solution at 75 ° C. for 3 minutes. However, the Fmoc removal at the 2nd residue, the 4th residue and the 13th residue was carried out at 25 ° C. for 5 minutes and then at room temperature for 10 minutes.
- the introduction of the chloroacetyl group is carried out by removing the Fmoc group of the ⁇ -amino group from the solid phase resin in which the Fmoc-protected peptide obtained in the previous step is retained by the method described above, and then using 5 eq of chloroacetic acid and 5 eq of the solid phase resin.
- DIPCI and 10 eq of HOSu were stirred in DCM and the same amount of DMF as that of DCM was added to prepare a DCM / DMF solution (0.2 M) of ClAcOSu, which was added to a solid phase resin and shaken at room temperature for 30 minutes.
- the resin obtained after the chloroacetyl group introduction step was first washed with DMF 5 times and with methylene chloride 3 times, and then dried under reduced pressure. Subsequently, the reactant cocktail-A (a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5) was added to the reaction vessel containing the solid phase resin. , Shake for 20 minutes at room temperature. The reaction solution was collected by filtration from the frit. The solid-phase resin remaining in the reaction vessel was shaken again with the cocktail for cutting, the solution component was recovered from the frit, and mixed with the above-mentioned filtrate.
- the reactant cocktail-A a mixture of TFA / H 2 O / TIS / DODT by volume 92.5: 2.5: 2.5: 2.5
- the notation material is 3 instead of 4-((((9H-fluorene-9-yl) methoxy) carbonyl) amino) -5- (terrary butoxy) -5-oxopentanoic acid according to Synthesis Example [1-x]. -((((9H-Fluorene-9-yl) methoxy) carbonyl) amino) -4- (territorial butoxy) -4-oxobutanoic acid was used in the same manner.
- ESI-MS (+) Observed value m / z 493.30 (M + H) +
- This invention can be used in the pharmaceutical industry.
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Abstract
Description
別の発明は,さらに血液脳関門(BBB)を通過することができるペプチド,筋組織に指向性を有し、筋組織に効率的に移行することが出来るペプチド及び細胞浸透性を有するペプチドを提供することを目的とする。
別の発明は,上記の新規なペプチドの各種用途を提供することを目的とする。
このペプチドは,配列番号1に記載のアミノ酸配列(Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Ser-Cys);又は配列番号1に記載のアミノ酸配列中に1以上10以下のアミノ酸残基の置換,欠失,付加及び/又は挿入を有するアミノ酸配列を有するペプチドである。
トランスフェリンレセプターとは,血漿に含まれ,鉄イオンと結合するたんぱく質であるトランスフェリンと結合し,細胞内に取り込む機能を有する受容体を示す。トランスフェリンレセプターは,網状赤血球,胎盤の栄養膜細胞,リンパ球など様々な細胞上に発現しており,特に腫瘍細胞での発現が示唆されている。また,トランスフェリンレセプターは,血漿中の鉄イオンの結合刺激により細胞のエンドサイトーシスをトリガーするという性質を有しているため,トランスフェリンレセプターに結合する抗体等をDDSとして用い,物質をBBBを通過させるという研究が進められている。本願明細書においては、特記が無い限りはヒト型のトランスフェリンレセプターをヒトTfR、hTfR又は単にTfRと記する。
トランスフェリンレセプターに結合する(結合活性を有する、親和性を有するともいう)とは,トランスフェリンレセプターに特異的に結合することを意味する。
親和性は,トランスフェリンレセプターと結合ペプチドの解離についての平衡定数(KD)により表されるが,トランスフェリンレセプターと結合ペプチド上の抗原結合部位の間の結合強度を表す尺度であり:KDの値が小さくなるに従ってトランスフェリンレセプターと結合ペプチドの間の結合強度は強くなる(代わりに,親和性は1/KDのことである親和性定数(KA)として表すことも可能である)。当業者には明らかになるように(例えば,本明細書でのさらなる開示に基づいて),親和性は目的の特定の抗原に応じて,それ自体公知である様式で決定することが可能である。結合活性は,トランスフェリンレセプターと結合ペプチドの間の結合の強さの尺度である。結合活性は,トランスフェリンレセプターと結合ペプチド上のその結合部位の間の親和性と結合分子上に存在する関連する結合部位の数の両方に関係する。
BBBを通過可能とは,例えば,BBBを介して脳内に物質を通過させることができ,脳内の任意の部位において,投与後のある時間において当該物質又はその代謝物を検出可能であること,または脳内において当該物質が影響を及ぼしたと類推できる知見が得られることを意味する。
脳関連疾患とは、脳に何らかの異常が起こることによりきたす疾患であり、例えば中枢神経(CNS)疾患を示す。脳関連疾患の例としては、限定されないが、アルツハイマー病、パーキンソン病、プリオン病、ハンチントン病、ライソゾーム病、中枢神経障害、脳腫瘍を含む中枢神経系の腫瘍、脳虚血、脳障害を伴う疾患、外傷性の中枢神経系障害,ウィルス性及び細菌性の中枢神経系疾患や、統合失調症、うつ症などの精神に影響を来す疾患などである。
筋組織とは,心筋,骨格筋および平滑筋のどれであってもよい。特に好ましい筋組織は心筋または骨格筋である。筋組織に指向性を有するとは,筋組織に特異的、効率的に移行する性質を有することを意味する。
神経筋疾患とは,脳・脊髄・末梢神経などの神経または筋肉の病変によって筋力の低下などの運動障害をきたす疾患を示す。神経筋疾患の例は,限定されないが、脊髄小脳変性症,筋萎縮性側索硬化症,重症筋無力症,筋ジストロフィー,多発性筋炎,遺伝性ミオパチー,神経筋疾患,筋萎縮症,薬物誘発性ミオパチー,急性心不全、慢性心不全、心筋梗塞、慢性疲労症候群、ミトコンドリア病、ミトコンドリア呼吸鎖複合体異常症及びギラン・バレー症候群である。
細胞浸透性を有するペプチドは,例えば特許第6478632号公報,及び特許第6708770号(細胞透過性を有するペプチド)に記載される通り,公知である。そして,実施例により示された通り,本発明のペプチドは,トランスフェリンレセプターと結合し,細胞内に取り込まれる。そのため,本発明のペプチドやその複合体を用いれば,目的の有効成分を細胞内にデリバリーすることが可能となり,例えば,核酸医薬を細胞内に届けることが可能となる。
アミノ酸が複数連続した構造を言い,ポリペプチド,たんぱく質をもその意味に包含する。なお,本願においてアミノ酸とは,細胞内でmRNAが翻訳されてペプチド鎖に取り込まれる天然に存在するアミノ酸(天然アミノ酸)だけではなく,ペプチド結合によりペプチド鎖の一部を構成することのできる、天然に存在しないアミノ酸(非天然アミノ酸)をも包含する。アミノ酸は、人工的に合成したものであっても、自然界に存在するものであってもよい。
また,本願においては,合成後環状化により環状部が形成されたペプチド(環状ペプチドともいう),当該ペプチドをさらに化学修飾して得られるペプチド,ペプチドとペプチドに結合した物質の複合体,ペプチドと物質がリンカーを介して結合した複合体も,本発明のペプチド,ペプチドと物質の複合体に含まれる。
本明細書において、環状ペプチドとは,ペプチド中、そのアミノ酸配列において間に1以上のアミノ酸残基を介して離れた2つのアミノ酸どうしが互いに結合することにより、その全部または一部が環状になっているものをいう。なお、ここで当該2つのアミノ酸どうしの結合型に特に限定はないが、一方のアミノ酸のカルボキシル基と他方のアミノ酸のアミノ基との間のアミド結合、一方のアミノ酸のカルボキシル基と他方のアミノ酸のチオール基との間のチオエーテル結合、一方のアミノ酸のチオール基と他方のアミノ酸のチオール基との間のチオール結合、ラクタム環形成又はマクロ環化反応により環状構造を形成したものや、ラッソペプチド状構造を有するもの等も環状ペプチドに包含される。但し、当該2つのアミノ酸どうしがアミド結合により結合している場合、当該アミド結合は一方のアミノ酸のカルボキシル基と他方のアミノ酸のアミノ基が結合することにより形成されたものに限られず、合成反応の結果としてアミド結合により結合しておればよい。他の結合型についても同様である。
すなわち、本願において環状ペプチドは、その一部が環状構造を形成するものであればよく、直鎖部を有していてもよい。
非天然アミノ酸の例と、本明細書における略語を以下に示す。括弧内にCAS参照番号または購入先社名を示し、新たに合成したものについては合成例番号を示した。なお、CAS番号については、当該非天然アミノ酸単体又は保護基が結合したもの但し、特殊アミノ酸はこれらに限られるものではなく、例えば、これらの分子中の水素原子の1個又は複数がアルキル基に置換した構造のものも特殊アミノ酸である。水素原子がアルキル基に置換される場合、アルキル基は好ましくはメチル基、エチル基であり、より好ましくはメチル基である。なお、本明細書においてアミノ酸名の前にMe又はN-Me-の記載があるアミノ酸は、特記が無い限りN-メチルアミノ酸を示す。例えば、アラニン(Ala又はA)のN-メチル化アミノ酸は、MeAla、N-MeAla、MeA又はN-MeAと示す。また、1文字表記のアミノ酸表記であって、その前にdの記載があるアミノ酸については、D-アミノ酸を示す。例えば、アラニン(Ala又はA)のD-アミノ酸については、daと示す。CAS番号や購入先の記載がないものは、一般的試薬として購入することができる。なお、以下のアミノ酸に関し、ペプチド合成には既知の方法でアルファアミノ基をFmoc保護することで用いることが可能である。
W7OMe (S)-2-アミノ-3-(7-メトキシ-1H-インドール-3-イル)プロパン酸(CAS番号:2416720-26-6 )
W7N (S)-2-アミノ-3-(1H-ピロロ[2,3-β]ピリジン-3-イル)プロパン酸(CAS番号:737007-45-3)
W7F (S)-2-アミノ-3-(7-フルオロ-1H-インドール-3-イル)プロパン酸(CAS番号:1956434-65-3)
W6N (S)-2-アミノ-3-(1H-ピロロ[2,3-c]ピリジン-3-イル)プロパン酸(キシダ化学株式会社)
W6F (S)-2-アミノ-3-(6-フルオロ-1H-インドール-3-イル)プロパン酸(CAS番号:908847-01-8)
W5OMe 5-メトキシ-L-トリプトファン (CAS番号:460751-69-3)
W5F (S)-2-アミノ-3-(5-フルオロ-1H-インドール-3-イル)プロパン酸(CAS番号:908846-88-8)
W4OMe 4-メトキシ-L-トリプトファン(CAS番号:1205553-56-5)
W4N (S)-2-アミノ-3-(1H-ピロロ[3,2-β]ピリジン-3-イル)プロパン酸(CAS番号:149818-23-5)
W4F (S)-2-((((9H-フルオレン-9-イル)-メトキシ)カルボニル)アミノ)-3-(1-(tert-ブトキシカルボニル)-4-フルオロ-1H-インドール-3-イル)プロパン酸(CAS番号:2244532-65-6)
W4C (S)-2-アミノ-3-(4-クロロ-1H-インドール-3-イル)プロパン酸(CAS番号:2244532-68-9)
W2N (S)-2-アミノ-3-(1H-インドール-3-イル)プロパン酸(CAS番号:2305185-20-8 )
W1iPr 1-イソプロピル-L-トリプトファン(CAS番号:1496563-42-8)
W1Et7Cl (S)-2-アミノ-3-(7-クロロ-1-エチル-1H-インドール-3-イル)プロパン酸(合成例2-1)
W1Et 1-エチル-L-トリプトファン(CAS番号:168471-23-6)
Tbg (S)-2-アミノ-3,3-ジメチルブタン酸(CAS番号:33105-81-6)
pHPeG N-(4-ヒドロキシフェネチル)グリシン(CAS番号:258332-56-8)
PeG N-(2-フェニルエチル)-グリシン(CAS番号: 540483-58-7)
Nva L-ノルバリン(CAS番号:6600-40-4)
Nle N-α-クロロアセチル-L-ノルロイシン(CAS番号:688-12-0)
Nal2 β-(2-ナフチル)L-アラニン(CAS番号:58438-03-2)
Nal1 β-(1-ナフチル)L-アラニン(CAS番号:2353616-32-5)
MeoBph N-α-メチル-2-フェニル-L-フェニルアラニン
MeNal2 N-α-メチル-β-(2-ナフチル)-L-アラニン(CAS番号:179385-30-9)
MeNal1 N-α-メチル-β-(1-ナフチル)-L-アラニン(CAS番号:1380327-68-3)
MemBph N-α-メチル-3-フェニル-L-フェニルアラニン
Hph L-ホモフェニルアラニン(CAS番号:943-73-7)
Hly (S)-2,7-ジアミノヘプタン酸(CAS番号:498-56-6)
F4OMe (S)-2-アミノ-3-(4-メトキシフェニル)プロパン酸(CAS番号:7635-29-2)
F4G (4-グアジニル)-L-フェニルアラニン(CAS番号:59574-11-7)
F4F 4-フルオロ-L-フェニルアラニン(CAS番号:1132-68-9)
F4C N-α-クロロアセチル-4-クロロ-L-フェニルアラニン(CAS番号:14173-39-8)
F3OMe (S)-2-アミノ-3-(3-メトキシフェニル)プロパン酸(CAS番号:98813-19-5)
F3F 3-フルオロ-L-フェニルアラニン(CAS番号:19883-77-3)
F3C N-α-クロロアセチル-3-クロロ-L-フェニルアラニン(CAS番号:80126-51-8)
F2OMe (S)-2-アミノ-3-(2-メトキシフェニル)プロパン酸(CAS番号:206060-41-5)
F2C (S)-2-アミノ-3-(2-クロロフェニル)プロパン酸(CAS番号:198560-41-7)
MeF4OMe (s)-3-(4-メトキシフェニル)-2-(メチルアミノ)プロパン酸(CAS番号:1260595-45-6)
MeF4F N-α-メチル-4-フルオロ-L-フェニルアラニン(CAS番号:1979176-87-8)
MeF3F N-α-メチル-3-フルオロ-L-フェニルアラニン(CAS番号:1820567-10-9)
MeF3C N-α-メチル-3-クロロフルオロ-L-フェニルアラニン(CAS番号:1446478-28-9)
MeBph N-α-メチル-4-フェニル-L-フェニルアラニン
Me4Py N-α-メチル-4-ピリジル-L-アラニン
Me3Py N-α-メチル-3-ピリジル-L-アラニン
dr D-アルギニン
dp D-プロリン
dc D-システイン
dk D-リジン
Dap L-α,β-ジアミノプロピオン酸(CAS番号:515-94-6)
Dab (S)-4-アミノ-2-(2-クロロアセトアミド)ブタン酸(CAS番号:25691-37-6)
Cit 2-アミノ-5-ウレイドペンタン酸(CAS番号:627-77-0)
Cha β-シクロヘキシル-L-アラニン(CAS番号:4441-50-3)
CeG N-(2-カルボキシエチル)-グリシン(CAS番号:174799-89-4)
Cbg (S)-2-アミノ-2-シクロブチル酢酸(CAS番号:1391630-31-1)
Cba シクロブチルアラニン(CAS番号:478183-62-9)
aMeY α-メチル-L-チロシン(CAS番号:658-48-0)
aMeW α-メチル-トリプトファン(CAS番号:153-91-3)
aMeK α-メチル-リジン(CAS番号:111717-28-3)
aMeC α-メチル-L-システイン(CAS番号:441317-73-3)
Aib α-メチルアラニン(CAS番号:62-57-7)
Ahp/Alahp (S)-2-アミノヘプタン酸(CAS番号:1115-90-8)
Abu L-α-アミノブタン酸(CAS番号:1492-24-6)
A4paa (S)-2-アミノ-3-(1-(カルボキシメチル)ピペラジン-4-イル)プロパン酸(キシダ化学株式会社)
5Ind (S)-2-アミノ-3-(1H-インドール-5-イル)プロパン酸(CAS番号:1655518-66-3 )
4Py2NH2 (S)-2-アミノ-3-(2-アミノピリジン-4-イル)プロパン酸(キシダ化学株式会社)
4Py 4-ピリジル-L-アラニン(CAS番号:1956-21-4)
3Py6NH2 2-アミノ-3-(6-アミノピリジン-3-イル)プロパン酸(合成例2-3)
3Py 3-ピリジル-L-アラニン(CAS番号:17470-24-5)
W1aa 1-(カルボキシメチル)-L-トリプトファン(CAS番号:773823-50-0)
KCOpipzMe N6-(4-メチルピペラジン-1-カルボニル)-L-リジン(キシダ化学株式会社)
W1mCON 1-(2-アミノ-2-オキソエチル)-L-トリプトファン(合成例2-5)
W1EtOH 1-(2-ヒドロキシエチル)-L-トリプトファン(合成例2-9)
3Py6OMe (S)-2-アミノ-3-(6-メトキシピリジン-3-イル)プロパン酸(CAS番号:1270317-99-1)
Epyrl2RCOO 2-((5-((R)-2-((アリルオキシ)カルボニル)ピロリジン-1-イル)-5-オキソペンタン酸
Dpyrl2RCOO 2-((4-((R)-2-((アリルオキシ)カルボニル)ピロリジン-1-イル)-4-オキソブタン酸 (実施例9-16)
MeF3COO 3-カルボキシ-N-メチル-フェニルアラニン(CAS番号:1499826-56-0)
3Imp 2-アミノ-3-(イミダゾ[1,2-a]ピリジン-3-イル)プロパン酸(CAS番号:2276942-95-9)
KaAc N6-グリシル-L-リジン(合成例2-8)
A1Me4pip 4-アミノ-1-メチルピペラジン-4-カルボン酸(CAS番号:15580-66-2)
Har N6-カルバミミドイル-L-リシン(CAS番号:156-86-5)
Acpr (S)-2-アミノ-3-シクロプロピルプロパン酸(CAS番号:1492156-90-7)
Atb (S)-2-アミノ-4,4-ジメチルペンタン酸(CAS番号:1934633-35-8)
MeF35dC (S)-3-(3,5-ジクロロフェニル)-2-(メチルアミノ)プロパン酸(CAS番号:1542508-65-5 )
Adod 12-アミノドデカン酸
Hly L-ホモリジン
W5C 5-クロロ-L-トリプトファン
F3COO L-3-カルボキシフェニルアラニン
F3CON L-3-カルバモイルフェニルアラニン
Hgl L-2-アミノアジピン酸
Ndm N,N-ジメチル-L-アスパラギン
KN3もしくはLysN3 6-アジド-L-ノルロイシン
KAc N6-アセチル-L-リシン
dorn D-オルニチン
Nle L-ノルロイシン
F3H 3-ヒドロキシ-L-フェニルアラニン
Yae O-(2-アミノメチル)-L-チロシン
F4aao O-(2-カルボキシメチル)-L-チロシン
F4OEt O-エチル-L-チロシン
F34dOMe 3,4-ジメトキシ-L-フェニルアラニン
alT L-アロスレオニン
alI L-アロイソロイシン
MeK N-メチル-L-リシン
Tbg (S)-2-アミノ-3,3-ジメチル酪酸
Nva L-ノルバリン
Abu (S)-(+)-2-アミノ酪酸
da D-アラニン
Bph 4-フェニル-L-フェニルアラニン
de D-グルタミン酸
MeA N-メチル-L-アラニン
PEG4cもしくはPEG3 1-アミノ-3,6,9,12-テトラオキサペンタデカン-15-オイック酸
MeR N-メチル-L-アルギニン
MeW N-メチル-L-トリプトファン
PEG8c 1-アミノ-3,6,9,12,15,18,21,24-オクタオキサヘプタコサン-27-オイック酸
PEG12cもしくはPEG11もしくはPEG12 1-アミノ-3,6,9,12,15,18,21,24,27,30,33,36-ドデカオキサノナトリアコンタン-39-オイック酸
なお,新規合成アミノ酸は,各種ペプチド誘導体を製造する際に各種ペプチドに新たな機能を付加できる可能性があるため,有用である。
アミノ酸の置換,欠失,付加および/又は挿入されたアミノ酸の数は,1個以上10個以下であればよく,その下限は1個である。その上限は10個,9個,8個,7個,6個,5個,4個,3個,2個であり,最小1個である。かかるアミノ酸の置換は,好適には保存的アミノ酸置換である。
「保存的アミノ酸置換(conservative amino acid substitution)」とは,機能的に等価または類似のアミノ酸との置換を意味する。ペプチドにおける保存的アミノ酸置換は,該ペプチドのアミノ酸配列に静的変化をもたらす。例えば,同様の極性を有する一つまたは二つ以上のアミノ酸は機能的に等価に作用し,かかるペプチドのアミノ酸配列に静的変化をもたらす。一般に,あるグループ内の置換は構造および機能について保存的であると考えることができる。しかしながら,当業者には自明であるように,特定のアミノ酸残基が果たす役割は当該アミノ酸を含む分子の三次元構造における意味合いにおいて決定され得る。例えば,システイン残基は,還元型の(チオール)フォームと比較してより極性の低い,酸化型の(ジスルフィド)フォームをとることができる。アルギニン側鎖の長い脂肪族の部分は構造的および機能的に重要な特徴を構成し得る。また,芳香環を含む側鎖(トリプトファン,チロシン,フェニルアラニン)はイオン-芳香族相互作用または陽イオン-pi相互作用に寄与し得る。かかる場合において,これらの側鎖を有するアミノ酸を,酸性または非極性グループに属するアミノ酸と置換しても,構造的および機能的には保存的であり得る。プロリン,グリシン,システイン(ジスルフィド・フォーム)等の残基は主鎖の立体構造に直接的な効果を与える可能性があり,しばしば構造的ゆがみなしに置換することはできない。
(I)配列番号1の1番目のアラニン残基の脂肪族アミノ酸又はメチル化脂肪族アミノ酸への置換;
(II)配列番号1の2番目のバリン残基の塩基性アミノ酸残基又はメチル化塩基性アミノ酸残基への置換;
(III)配列番号1の3番目のフェニルアラニン残基の芳香族アミノ酸残基,メチル化芳香族アミノ酸残基,芳香環を付加したアミノ酸残基,又は縮合環を付加したアミノ酸残基への置換;
(IV)配列番号1の4番目のバリン残基のメチル化バリン残基への置換;
(V)配列番号1の5番目のトリプトファン残基の芳香族アミノ酸残基,メチルトリプトファン残基,メチル化芳香族アミノ酸残基,芳香環を付加したアミノ酸残基,又は縮合環を付加したアミノ酸残基への置換;
(VI)配列番号1の6番目のアスパラギン残基の中性アミノ酸又はメチル化中性アミノ酸への置換;
(VII)配列番号1の7番目及び8番目のチロシン残基の芳香族アミノ酸残基,メチル化芳香族アミノ酸残基,芳香環を付加したアミノ酸残基,又は縮合環を付加したアミノ酸残基への置換;
(VIII)配列番号1の9番目のイソロイシン残基の脂肪族アミノ酸残基,メチル化脂肪族アミノ酸残基,又は分岐鎖構造を有するアミノ酸残基への置換;
(IX)配列番号1の10番目のイソロイシン残基の任意のアミノ酸への置換;及び
(X)配列番号1の11番目のセリン残基の中性アミノ酸残基への置換,
から選択される1つ以上の置換を有するアミノ酸配列を含む。
また,天然界に存在するアミノ酸は,その共通する側鎖の性質に基づいて次のようなグループに分けることができる。
(2)中性親水性アミノ酸グループ:Cys,Ser,Thr,Asn,Gln
(3)酸性アミノ酸グループ:Asp,Glu
(4)塩基性アミノ酸グループ:His,Lys,Arg
(5)主鎖の方角に影響を与えるアミノ酸のグループ:Gly,Pro
(6)芳香族アミノ酸グループ:Trp,Tyr,Phe
なお,各グループにおいて,N-メチル化されたアミノ酸などの非天然アミノ酸も包含される。
(I)配列番号2の1番目のアラニン残基の脂肪族アミノ酸又はメチル化脂肪族アミノ酸への置換;
(II)配列番号2の2番目のバリン残基の塩基性アミノ酸残基又はメチル化塩基性アミノ酸残基への置換;
(III)配列番号2の3番目のフェニルアラニン残基の芳香族アミノ酸残基,メチル化芳香族アミノ酸残基,芳香環を付加したアミノ酸残基,又は縮合環を付加したアミノ酸残基への置換;
(IV)配列番号2の4番目のバリン残基のメチル化バリン残基への置換;
(V)配列番号2の5番目のトリプトファン残基の芳香族アミノ酸残基,メチル化芳香族アミノ酸残基,芳香環を付加したアミノ酸残基,又は縮合環を付加したアミノ酸残基への置換;
(VI)配列番号2の6番目のアスパラギン残基の中性アミノ酸又はメチル化中性アミノ酸への置換;
(VII)配列番号2の7番目及び8番目のチロシン残基の芳香族アミノ酸残基,メチル化芳香族アミノ酸残基,芳香環を付加したアミノ酸残基,又は縮合環を付加したアミノ酸残基への置換;
(VIII)配列番号2の9番目のイソロイシン残基の脂肪族アミノ酸残基,メチル化脂肪族アミノ酸残基,又は分岐鎖構造を有するアミノ酸残基への置換;
(IX)配列番号2の10番目のイソロイシン残基の任意のアミノ酸への置換;
(XI)配列番号2の11番目及び12番目のアルギニン残基の塩基性アミノ酸残基への置換;
(XII)配列番号2の13番目のチロシン残基の親水性アミノ酸残基への置換;
(XIII)配列番号2の14番目のメチルチロシン残基のチロシン残基,芳香族アミノ酸残基又はメチル化芳香族アミノ酸残基への置換; 及び
(XIV)配列番号2の15番目のシステイン残基のメチル化システイン残基への置換,
から選択される1以上の置換を有するアミノ酸配列を含む。
ペプチドA,又は
ペプチドAにおいて,1以上6以下のアミノ酸残基の置換,欠失,及び/又は挿入を有するアミノ酸配列を有するペプチドである。
「アミノ酸残基が置換された」とは,特定のアミノ酸残基がほかの修飾されてもよいアミノ酸残基に置換されたことを意味する。
配列番号18の2番目のアミノ酸残基が,修飾されてもよいバリン(Val)又は修飾されてもよいグルタミン酸(Glu)であり,
配列番号18の3番目のアミノ酸残基が,修飾されてもよいフェニルアラニン(Phe)であり,
配列番号18の5番目のアミノ酸残基が,修飾されてもよいトリプトファン(Trp)であり,
配列番号18の8番目のアミノ酸残基が,修飾されてもよいチロシン(Tyr)であり,
配列番号18の10番目のアミノ酸残基が,修飾されてもよいイソロイシン(Ile)又は修飾されてもよいバリン(Val)であるペプチドであってもよい。
配列番号18の2番目のアミノ酸残基が,Val又はGluであり,
配列番号18の3番目のアミノ酸残基が,Phe又はMeF3Cであり、
配列番号18の5番目のアミノ酸残基が,Trp又はMeTrpであり,
配列番号18の8番目のアミノ酸残基が,Tyr又はF4OMeであり,
配列番号18の10番目のアミノ酸残基が,Ile又はValであるペプチドであってもよい。
配列番号18の11番目のアミノ酸残基が,Ser又はHisであり,
配列番号18の12番目のアミノ酸残基が,Cys又はHglであるペプチドであってもよい。
ペプチドB,又は
ペプチドBにおいて,1以上5以下のアミノ酸残基の置換,欠失,及び/又は挿入を有するアミノ酸配列を有するペプチドである。
配列番号15の2番目のアミノ酸残基が,修飾されてもよいバリン(Val)又は修飾されてもよいグルタミン酸(Glu)であり,
配列番号15の3番目のアミノ酸残基が,修飾されてもよいフェニルアラニン(Phe)又はトリプトファン(Trp)であり,
配列番号15の5番目のアミノ酸残基が,修飾されてもよいトリプトファン(Trp)であり,
配列番号15の8番目のアミノ酸残基が,修飾されてもよいチロシン(Tyr)であり,
配列番号15の10番目のアミノ酸残基が,修飾されてもよいイソロイシン(Ile)又は修飾されてもよいバリン(Val)であるペプチドでもよい。
配列番号15の2番目のアミノ酸残基が,Val又はGluであり,
配列番号15の3番目のアミノ酸残基が,Phe、Trp又はMeF3Cであり,
配列番号15の5番目のアミノ酸残基が,Trp又はMeTrpであり,
配列番号15の8番目のアミノ酸残基が,Tyr、Phe又はF4OMeであり,
配列番号15の10番目のアミノ酸残基が,Ile又はValであるペプチドでもよい。
配列番号15の11番目のアミノ酸残基が,Pheであり,
配列番号15の12番目のアミノ酸残基が,Argであり、
配列番号15の13番目のアミノ酸残基が,Glu,Asn、Asp,His,Gln又はMeTrpであり,
配列番号15の14番目のアミノ酸残基が,Cysであるペプチドであってもよい。
ペプチドC,又は
ペプチドCにおいて,1以上5以下のアミノ酸残基の置換,欠失,及び/又は挿入を有するアミノ酸配列を有するペプチドである。
配列番号214の1番目のアミノ酸残基が,修飾されてもよいアラニン(Ala)又は修飾されてもよいグルタミン酸(Glu)であり,
配列番号214の3番目のアミノ酸残基が,修飾されてもよいフェニルアラニン(Phe)であり,
配列番号214の5番目のアミノ酸残基が,修飾されてもよいトリプトファン(Trp)であり,
配列番号214の8番目のアミノ酸残基が,修飾されてもよいフェニルアラニン(Phe)であるペプチドでもよい。
配列番号214の1番目のアミノ酸残基が,Ala、Aib、Abu、Glu,Gly,Ser,Phe、Pro又はMeAであり,特に好ましくはAla又はMeAであり、
配列番号214の3番目のアミノ酸残基が,Phe、F3C、F2C、F2OMe、F4C、Cha、MeF、MeF35dC、MeF4F、MeF4Ome、MeNal1、Me3Py、Me4Py、Me3OMe、MeF3COO、MeF3F、Glu,Epyrl2RCOO、Dpyrl2RCOO又はMeF3Cであり、特に好ましくはPhe,MeF又はMeF3Cであり、
配列番号214の5番目のアミノ酸残基が,Trp、MeW、aMeW、dp、F3C、F3F,F3OMe、F4C、F4F、Hph,MemBph、MeNal1、MeNal2、MeoBph、W4OMe、W1Et、W1Et7Cl、W1iPr、Yph、W1Pr、W5C、W5F,W1aa,W1EtOH,W4OMe,W1mCON又はW6Fであり,特に好ましくはTrp、MeWであり、
配列番号214の8番目のアミノ酸残基が,Phe、Tyr、Typ、Ahp,MeY、F4OMe,3Imp、4Py,3Py、3Py6OMe、F3C、F3CON、F4C,F4aao、F4F、F4OEt,MeF34dOMe,Yae,Lys、Orn、又はNal1であり、特に好ましくはTyr又はF4OMeであるペプチドであってもよい。
配列番号214の11番目のアミノ酸残基が,Arg,Ala,Asp,Gly,Glu、Lys、MeK,MeR,Dap,Dap,Abu,Aib、Hly,dorn,aMeK,A1Me4pip、KCOpipzMe、F4G,Nle,Nva又はOrnであり,特に好ましくはLys又はArgであり、
配列番号214の12番目のアミノ酸残基が,Lys,Arg、dr、Tyr、F4G,Orn,Hly,da、Cit、Dap又はDabであり,特に好ましくはLys,Arg又はdrであり、
配列番号214の13番目のアミノ酸残基が,Ala,Phe,Asn,Tyr、又はpHPeGであり,特に好ましくはPhe又はTyrであり、
配列番号214の14番目のアミノ酸残基が,MeTyr、Tyr、Phe,Ala,aMeY、Glu,Gly,Arg,Val、MeoBphMeBph、,MeF,MemBph、MeNal1、MeNal2、MeoBph、MeW又はpHPeG、特に好ましくはPhe又はMeWであり,
配列番号214の15番目のアミノ酸残基が,Cys又はHglであるペプチドであってもよい。
ペプチドD,又は
ペプチドDにおいて,1以上5以下のアミノ酸残基の置換,欠失,及び/又は挿入を有するアミノ酸配列を有するペプチドである。
配列番号219の3番目のアミノ酸残基が,修飾されてもよいフェニルアラニン(Phe)であり,
配列番号219の5番目のアミノ酸残基が,修飾されてもよいトリプトファン(Trp)であり,
配列番号219の8番目のアミノ酸残基が,修飾されてもよいチロシン(Tyr)であり,
配列番号219の10番目のアミノ酸残基が,修飾されてもよいイソロイシン(Ile),修飾されてもよいグルタミン酸(Glu)又は修飾されてもよいリジン(Lys)であるペプチドでもよい。
配列番号219の2番目のアミノ酸残基が,Val,Glu,Ala、Arg,Lys,Asp、Phe、Dap,Har,Abu,Nva,AcPr,AtbAhp又はHglであり,特に好ましくはGln又はValであり、
配列番号219の3番目のアミノ酸残基が,3番目のアミノ酸残基が,Phe、F3C、F2C、F2OMe、F4C、Cha、MeF、MeF35dC、MeF4F、MeF4Ome、MeNal1、Me3Py、Me4Py、Me3OMe、MeF3COO、MeF3F、Glu,Epyrl2RCOO、Dpyrl2RCOO又はMeF3Cであり、特に好ましくはPhe,MeF又はMeF3Cであり、
配列番号219の5番目のアミノ酸残基が,Trp、MeW、aMeW、dp、F3C、F3F,F3OMe、F4C、F4F、Hph,MemBph、MeNal1、MeNal2、MeoBph、W4OMe、W1Et、W1Et7Cl、W1iPr、Yph、W1Pr、W5C、W5F,W1aa,W1EtOH,W4OMe,W1mCON又はW6Fであり,特に好ましくはTrp、MeWであり、
配列番号219の8番目のアミノ酸残基が,Phe、Tyr、Typ、Ahp,MeY、F4OMe,3Imp、4Py,3Py、3Py6OMe、F3C、F3CON、F4C,F4aao、F4F、F4OEt,MeF34dOMe,Yae,Lys、Orn、又はNal1であり、特に好ましくはTyr又はF4OMeであり、
配列番号219の10番目のアミノ酸残基が,Ala,Abu,Acpr、Ahp,Aib,alI、alT,Atb,Dab,Dap,dorn,Gln,Hly,Ile,Lys,KCOpipzMe、Leu,Nle、Nva,Pro、Arg,Ser,Thr、Tbg,Val又はTyrであり、特に好ましくはIle又はalIであるペプチドであってもよい。
配列番号219の11番目のアミノ酸残基が,Arg,Ala,Asp,Gly,Glu、Lys、MeK,MeR,Dap,Dap,Abu,Aib、Hly,dorn,aMeK,A1Me4pip、KCOpipzMe、F4G,Nle,Nva又はOrnであり,特に好ましくはLys又はArgであり、
配列番号219の12番目のアミノ酸残基が,Lys,Arg、dr、Tyr、F4G,Orn,Hly,da、Cit、Dap又はDabであり,特に好ましくはLys,Arg又はdrであり、
配列番号219の13番目のアミノ酸残基が,Ala,Phe,Asn,Tyr、又はpHPeGであり,特に好ましくはPhe又はTyrであり、
配列番号219の14番目のアミノ酸残基が,MeTyr、Tyr、Phe,Ala,aMeY、Glu,Gly,Arg,Val、MeoBphMeBph、,MeF,MemBph、MeNal1、MeNal2、MeoBph、MeW又はpHPeG、特に好ましくはPhe又はMeWであり,
配列番号219の15番目のアミノ酸残基が,Cys又はHglであるペプチドであってもよい。
ペプチドE,又は
ペプチドEにおいて,1以上5以下のアミノ酸残基の置換,欠失,及び/又は挿入を有するアミノ酸配列を有するペプチドである。
配列番号296の3番目のアミノ酸残基が,修飾されてもよいフェニルアラニン(Phe)であり,
配列番号296の5番目のアミノ酸残基が,修飾されてもよいトリプトファン(Trp)であり,
配列番号296の7番目のアミノ酸残基が、修飾されてもよいチロシン(Tyr)であり,
配列番号296の8番目のアミノ酸残基が,修飾されてもよいチロシン(Tyr)であり,
配列番号296の11番目のアミノ酸残基が,修飾されてもよいアルギニン(Arg)又は,修飾されてもよいアラニン(Ala)であり,
配列番号296の12番目のアミノ酸残基が,修飾されてもよいアルギニン(Arg)又は修飾されてもよいリジン(Lys)であり,
配列番号296の13番目のアミノ酸残基が,修飾されてもよいチロシン(Tyr)又は修飾されてもよいフェニルアラニン(Phe)のいずれかであるペプチドでもよい。
配列番号296の3番目のアミノ酸残基が,3番目のアミノ酸残基が,Phe、F3C、F2C、F2OMe、F4C、Cha、MeF、MeF35dC、MeF4F、MeF4Ome、MeNal1、Me3Py、Me4Py、Me3OMe、MeF3COO、MeF3F、Glu,Epyrl2RCOO、Dpyrl2RCOO又はMeF3Cであり、特に好ましくはPhe,MeF又はMeF3Cであり、
配列番号296の5番目のアミノ酸残基が,Trp、MeW、aMeW、dp、F3C、F3F,F3OMe、F4C、F4F、Hph,MemBph、MeNal1、MeNal2、MeoBph、W4OMe、W1Et、W1Et7Cl、W1iPr、Yph、W1Pr、W5C、W5F,W1aa,W1EtOH,W4OMe,W1mCON又はW6Fであり,特に好ましくはTrp、MeWであり、
配列番号296の7番目のアミノ酸残基が,Tyr,3Py6OMe、Ala,Ahp,Phe,F3H,F4C,Nal1、Arg又はTrpであり,特に好ましくはTyrであり、
配列番号296の8番目のアミノ酸残基が,Phe、Tyr、Typ、Ahp,MeY、F4OMe,3Imp、4Py,3Py、3Py6OMe、F3C、F3CON、F4C,F4aao、F4F、F4OEt,MeF34dOMe,Yae,Lys、Orn、又はNal1であり、特に好ましくはTyr又はF4OMeであり、
配列番号296の11番目のアミノ酸残基が,Arg,Ala,Asp,Gly,Glu、Lys、MeK,MeR,Dap,Dap,Abu,Aib、Hly,dorn,aMeK,A1Me4pip、KCOpipzMe、F4G,Nle,Nva又はOrnであり,特に好ましくはLys又はArgであり、
配列番号296の12番目のアミノ酸残基が,Lys,Arg、dr、Tyr、F4G,Orn,Hly,da、Cit、Dap又はDabであり,特に好ましくはLys,Arg又はdrであり、
配列番号296の13番目のアミノ酸残基が,Ala,Phe,Asn,Tyr、又はpHPeGであり,特に好ましくはPhe又はTyrであるペプチドであってもよい。
配列番号296の11番目のアミノ酸残基が,Arg,Ala,Asp,Gly,Glu、Lys、MeK,MeR,Dap,Dap,Abu,Aib、Hly,dorn,aMeK,A1Me4pip、KCOpipzMe、F4G,Nle,Nva又はOrnであり,特に好ましくはLys又はArgであり、
配列番号296の12番目のアミノ酸残基が,Lys,Arg、dr、Tyr、F4G,Orn,Hly,da、Cit、Dap又はDabであり,特に好ましくはLys,Arg又はdrであり、
配列番号296の13番目のアミノ酸残基が,Ala,Phe,Asn,Tyr、又はpHPeGであり,特に好ましくはPhe又はTyrであり、
配列番号214の14番目のアミノ酸残基が,MeTyr、Tyr、Phe,Ala,aMeY、Glu,Gly,Arg,Val、MeoBphMeBph、,MeF,MemBph、MeNal1、MeNal2、MeoBph、MeW又はpHPeG、特に好ましくはPhe又はMeWであり,
配列番号296の15番目のアミノ酸残基が,Cys又はHglであるペプチドであってもよい。
配列番号296の3番目のアミノ酸残基が,フェニルアラニン(Phe),メチル化フェニルアラニン(MeF),又はN-α-メチル-N-α-クロロアセチル-3-クロロ-L-フェニルアラニン(MeF3C)であり,
配列番号296の5番目のアミノ酸残基が,トリプトファン(Trp)又はメチル化トリプトファン(MeW)であり,
配列番号296の7番目のアミノ酸残基が,チロシン(Tyr)であり,
配列番号296の8番目のアミノ酸残基が,チロシン(Tyr)又は
(S)-2-アミノ-3-(4-メトキシフェニル)プロパン酸(F4OMe)であり,
配列番号296の11番目のアミノ酸残基が,アルギニン(Arg)又はリジン(Lys)であり,
配列番号296の12番目のアミノ酸残基が,アルギニン(Arg)又はD-アルギニン(dr)であり,
配列番号296の13番目のアミノ酸残基が,チロシン(Tyr)又はフェニルアラニン(Phe)であるペプチドでもよい。
ペプチド中の2つのアミノ酸が結合し,その全部または一部が環状になっているものをいう。なお,本願においては,ペプチド中のアミノ酸が架橋構造を形成したもの,ラクタム環形成又はマクロ環化反応により環状構造を形成したものや,ラッソペプチド状構造を有するもの等をも包含される。すなわち,本願において環状ペプチドは,その一部が環状構造を形成するものであればよく,直鎖部を有していてもよい。
ペプチドは,一般的に生体内において代謝安定性が悪く,またサイズが大きいので細胞膜を透過しづらいという問題がある。そのような課題に対し,ペプチドを環状化させるという方法がとられてきた。ペプチドを環状化すると,プロテアーゼ耐性が向上し代謝安定性が向上し,またコンフォメーション変化にも制限が加わるため,剛直性が増して膜透過性や標的タンパク質との親和性が向上することが示唆されてきた。
ペプチドの環化については,公知の方法に従って行うことができる。
これに限られるものではないが,例えば,ペプチドに2個以上のシステイン残基を含むよう設計することで,翻訳された後,ジスルフィド結合により環状構造を形成できる。また,Gotoらの方法(Y. Goto, et al. Acss Chem. Biol. 3 120-129 (2008))の従い,遺伝暗号のリプログラミング技術により,N末端にクロロアセチル基を有するペプチドを合成し,ペプチド中にシステイン残基を配置しておくことによっても環状化できる 。これにより,翻訳後に自発的にメルカプト基がクロロアセチル基に求核攻撃し,ペプチドがチオエーテル結合により環状化する。遺伝暗号のリプログラミング技術により,結合して環状を形成するその他のアミノ酸の組合せをペプチド内に配置して環状化してもよい。また、N末端にシクロアミドを有するペプチドを合成し、ペプチド中にHgl残基を配置しておくことによっても環状化できる。このように、公知の環状化方法であれば特に制限されず行うことができる。
ペプチド,ペプチド部位のアミド結合の数(アミノ酸の数・長さ)は特に限定されないが,総アミノ酸残基(ペプチドに結合した物質又は当該物質とペプチドを結合するリンカーがアミノ酸を含む場合は,それらのアミノ酸は含めない)が20残基以内が好ましい。好ましくはアミノ酸が6以上,7以上,8以上,9以上,10以上,11以上であり,好ましくはアミノ酸が19以下,18以下,17以下,16以下,15以下である。
このリンカーの好ましい例は,N末端が修飾されてもよいシステイン(Cys)又は修飾されてもよいリジン(Lys)である。
このリンカーの好ましい例は,N末端が修飾されてもよいシステイン(Cys)又は修飾されてもよいリジン(Lys)である,複合体。
PEGリンカーが,グリシン(Gly),セリン(Ser),グルタミン酸(Glu),アルギニン(Arg),又はリジン(Lys)をさらに含むものが好ましい。
このリンカーの好ましい例は,N末端が修飾されてもよいシステイン(Cys)又は修飾されてもよいリジン(Lys)である,複合体。
ポリエチレングリコール(PEG),
Gly又はMeGからなるペプチドリンカーであるGリンカー,Gly又はMeGとSerからなるペプチドリンカーであるGSリンカー,
又は,配列番号201,553~644のいずれかで示される,アミノ酸配列を有するリンカーのものである。
リンカーは,例えば,環境・条件によって乖離・分離するようなものであってもよく,安定的な構造を保つものでもよい。
化合物:低分子化合物,中分子化合物だけではなく,細胞のサイトーシス機構で導入可能な化合物であれば何でもよい。例えば公知の低分子薬剤が挙げられる。
ペプチド:体内の標的に結合して何らかの効果を示すペプチドであってよく、例えば環状ペプチドであってよい。
RI:放射性同位元素でラベルした低分子、中分子化合物や抗体等、放射性同位元素でラベルできる化合物であれば何でもよい。例えば、PET検査用の化合物が挙げられる。
タンパク質:抗体,酵素等の、体内にて有用な機能を示すタンパク質であれば何でもよい。例えば、酵素補充療法に用いられる酵素が挙げられる。
核酸:DNA,RNA等、塩基配列を含むものであれば何でもよい。例えば、核酸医薬品が挙げられる。
DDS:リポソームやミセルなどのDDS分子であってよい。当該DDS分子には内部にさらに医薬品などの化合物が含まれていてもよい。
及び、上記に挙げたそれらの複合体であってよい。
ポリエチレングリコール(PEG),
Gリンカー,GSリンカー,
又は,配列番号201,553~644のいずれかで示されるアミノ酸配列を有するリンカーである。
次に,第一アミノ酸のα-アミノ基の保護基を脱離させるとともに,主鎖のカルボキシ基以外のすべての官能基が保護された第二のアミノ酸を加え,当該カルボキシ基を活性化させて,第一及び第二のアミノ酸を結合させる。さらに,第二のアミノ酸のα-アミノ基を脱保護し,主鎖のカルボキシ基以外のすべての官能基が保護された第三のアミノ酸を加え,当該カルボキシ基を活性化させて,第二及び第三のアミノ酸を結合させる。これを繰り返して,目的とする長さのペプチドが合成されたら,すべての官能基を脱保護する。
α-アミノ基の保護基としては,ベンジルオキシカルボニル(Cbz又はZ)基,tert-ブトキシカルボニル(Boc)基,フルオレニルメトキシカルボニル(Fmoc)基,ベンジル基,アリル基,アリルオキシカルボニル(Alloc)基等が挙げられる。
Cbz基はフッ化水素酸,水素化等によって脱保護でき,Boc基はトリフルオロ酢酸(TFA)により脱保護でき,Fmoc基はピペリジンによる処理で脱保護できる。
α-カルボキシ基の保護は,メチルエステル,エチルエステル,ベンジルエステル,tert-ブチルエステル,シクロヘキシルエステル等を用いることができる。
アミノ酸のその他の官能基として,セリンやトレオニンのヒドロキシ基はベンジル基やtert-ブチル基で保護することができ,チロシンのヒドロキシ基は2-ブロモベンジルオキシカルボニル希やtert-ブチル基で保護する。リジン側鎖のアミノ基,グルタミン酸やアスパラギン酸のカルボキシ基は,α-アミノ基,α-カルボキシ基と同様に保護することができる。
本発明のペプチドをコードする核酸は,公知の方法又はそれに準ずる方法で調製することができる。例えば,自動合成装置によって合成することができる。得られたDNAをベクターに挿入するために制限酵素認識部位を加えたり,できたペプチド鎖を酵素などで切り出すためのアミノ酸配列をコードする塩基配列を組み込んでもよい。
上述のとおり,本発明のペプチドを膜透過性ペプチド等と融合させる場合,上記核酸は,膜透過性ペプチドをコードする核酸も含む。
宿主由来のプロテアーゼによる分解を抑制するため,目的のペプチドを他のペプチドとのキメラペプチドとして発現させるキメラタンパク質発現法を用いることもできる。この場合,上記核酸としては,目的とするペプチドと,これに結合するペプチドとをコードする核酸が用いられる。
発現ベクターには,DNA複製開始点(ori),選択マーカー(抗生物質抵抗性,栄養要求性等),エンハンサー,スプライシングシグナル,ポリA付加シグナル,タグ(FLAG,HA,GST,GFPなど)をコードする核酸等を組み込むこともできる。
粗抽出液又は培養上清からの精製も公知の方法又はそれに準ずる方法(例えば,塩析,透析法,限外ろ過法,ゲルろ過法,SDS-PAGE法,イオン交換クロマトグラフィー,アフィニティークロマトグラフィー,逆相高速液体クロマトグラフィー等)で行うことができる。
得られたペプチドは,公知の方法又はそれに準ずる方法で遊離体から塩に,又は塩から遊離体に変換してもよい。
これらを含む系に,透析を用いて連続的にエネルギーを供給することで,数100μgから数mg/mLのタンパク質を生産することができる。遺伝子DNAからの転写を併せて行うためにRNAポリメラーゼを含む系としてもよい。市販されている無細胞翻訳系として,大腸菌由来の系としてはロシュ・ダイアグノスティックス社のRTS-100(登録商標)ジーンフロンティア社のPURESYSTEMやNEW ENGLAND Biolabs社のPURExpress In Vitro Protein Synthesis Kit等,小麦胚芽抽出液を用いた系としてはゾイジーン社やセルフリーサイエンス社のもの等を使用できる。
無細胞翻訳系によれば,発現産物を精製することなく純度の高い形で得ることができる。
かかるリボザイムとしては,フレキシザイム(flexizyme)(H. Murakami, H. Saito, and H. Suga, (2003), Chemistry & Biology, Vol. 10, 655-662; H. Murakami, D. Kourouklis, and H. Suga, (2003), Chemistry & Biology, Vol. 10, 1077-1084; H. Murakami, A. Ohta, H. Ashigai, H. Suga (2006) Nature Methods 3, 357-359 “The flexizyme system: a highly flexible tRNA aminoacylation tool for the synthesis of nonnatural peptides”;N. Niwa, Y. Yamagishi, H. Murakami, H. Suga (2009) Bioorganic & Medicinal Chemistry Letters 19, 3892-3894 “A flexizyme that selectively charges amino acids activated by a water-friendly leaving group”;及びWO2007/066627等)が挙げられる。フレキシザイムは,原型のフレキシザイム(Fx),及び,これから改変されたジニトロベンジルフレキシザイム(dFx),エンハンスドフレキシザイム(eFx),アミノフレキシザイム(aFx)等の呼称でも知られる。
製剤化は,例えば,賦形剤,結合剤,崩壊剤,滑沢剤,溶解剤,溶解補助剤,着色剤,矯味矯臭剤,安定化剤,乳化剤,吸収促進剤,界面活性剤,pH調整剤,防腐剤,抗酸化剤などを適宜使用し,常法により行うことができる。
製剤化に用いられる成分の例としては,精製水,食塩水,リン酸緩衝液,デキストロース,グリセロール,エタノール等薬学的に許容される有機溶剤,動植物油,乳糖,マンニトール,ブドウ糖,ソルビトール,結晶セルロース,ヒドロキシプロピルセルロース,デンプン,コーンスターチ,無水ケイ酸,ケイ酸アルミニウムマグネシウム,コラーゲン,ポリビニルアルコール,ポリビニルピロリドン,カルボキシビニルポリマー,カルボキシメチルセルロースナトリウム,ポリアクリル酸ナトリウム,アルギン酸ナトリウム,水溶性デキストラン,カルボキシメチルスターチナトリウム,ぺクチン,メチルセルロース,エチルセルロース,キサンタンガム,アラビアゴム,トラガント,カゼイン,寒天,ポリエチレングリコール,ジグリセリン,グリセリン,プロピレングリコール,ワセリン,パラフィン,ミリスチン酸オクチルドデシル,ミリスチン酸イソプロピル,高級アルコール,ステアリルアルコール,ステアリン酸,ヒト血清アルブミン,等が挙げられるがこれらに限定されない。
上記医薬組成物は,ペプチドが経粘膜吸収されにくいことに鑑みて,難吸収性薬物の吸収を改善する吸収促進剤を含むことができる。かかる吸収促進剤としては,ポリオキシエチレンラウリルエーテル類,ラウリル硫酸ナトリウム,サポニン等の界面活性剤;グリココール酸,デオキシコール酸,タウロコール酸等の胆汁酸塩;EDTA,サリチル酸類等のキレート剤;カプロン酸,カプリン酸,ラウリン酸,オレイン酸,リノール酸,混合ミセル等の脂肪酸類;エナミン誘導体,N-アシルコラーゲンペプチド,N-アシルアミノ酸,シクロデキストリン類,キトサン類,一酸化窒素供与体等を用いることができる。
注射剤は,注射用蒸留水,生理食塩水,プロピレングリコール,ポリエチレングリコール,植物油,アルコール類等を含むことができる。さらに,湿潤剤,乳化剤,分散剤,安定化剤,溶解剤,溶解補助剤,防腐剤等を加えることができる。
本発明は,本発明のペプチドを含む脳関連疾患検出薬も包含する。検出薬として用いる場合,本発明のペプチドは,検出可能に標識してもよい。ペプチドの標識は,例えば,ペルオキシダーゼ,アルカリホスファターゼ等の酵素, 125I, 131I, 35S, 3H等の放射性物質,フルオレセインイソチオシアネート,ローダミン,ダンシルクロリド,フィコエリトリン,テトラメチルローダミンイソチオシアネート,近赤外蛍光材料等の蛍光物質,ルシフェラーゼ,ルシフェリン,エクオリン等の発光物質で標識した抗体が用いられる。その他,金コロイド,量子ドットなどのナノ粒子で標識した抗体を検出することもできる。例えば、脳関連疾患に関係する特定の標的に結合する抗体と本発明のペプチドとで複合体を作成し、当該抗体又は本発明のペプチドに標識した複合体を作成し、それを投与、検出することで、脳関連疾患を検出することができる。
また,イムノアッセイでは,本発明のペプチドをビオチンで標識し,酵素等で標識したアビジン又はストレプトアビジンを結合させて検出することもできる。
イムノアッセイの中でも,酵素標識を用いるELISA法は,簡便且つ迅速に抗原を測定することができて好ましい。例えば,抗体を固相担体に固定し,サンプルを添加して反応させた後,標識した本発明のペプチドを添加して反応させる。洗浄後,酵素基質と反応,発色させ,吸光度を測定することにより,脳関連疾患を検出することができる。固相担体に固定した抗体と試料を反応させた後,標識していない本発明のペプチドを添加し,本発明のペプチドに対する抗体を酵素標識してさらに添加してもよい。
酵素基質は,酵素がペルオキシダーゼの場合,3,3′-diaminobenzidine(DAB),3,3′,5,5′-tetramethylbenzidine(TMB),o-phenylenediamine(OPD)等を用いることができ,アルカリホスファターゼの場合,p-nitropheny phosphate(NPP)等を用いることができる。
9-フルオレニルメチルオキシカルボニルとしてFmoc;
1-ヒドロキシベンゾトリアゾールとしてHOAt;
O-(7-アザベンゾトリアゾールー1-イル)-N,N,N′,N′-テトラメチルウロニウムヘキサフルオロりん酸塩としてHATU;
アセトニトリルとしてMeCN;
1,8-ジアザビシクロ「5.4.0」-7-ウンデセンとしてDBU;
N,N-ジイソプロピルエチルアミンとしてDIPEA;
3,6-ジオキサー1,8-オクタン-ジチオールとしてDODT;
ジメチルスルフォキシドとしてDMSO;
N,N-ジメチルホルムアミドとしてDMF;
モノメチルトリチルとしてMtt;
モノメトキシトリチルとしてMmt;
2-ニトロベンゼンスルホニルとしてo-Ns;
トリフルオロ酢酸としてTFA;
トリイソプロピルシランとしてTIS;
トリチルとしてTrt
ミリリットル(単位)としてmL;
モーラー(単位)としてM;
volume/volume としてv/v;
12-アミノドデカン酸としてAdod。
以下の実施例における化学合成において使用された全ての原料、ビルディングブロック、試薬、酸、塩基、固相樹脂、溶媒は、市販品をそのまま用いたか、もしくは当業者にて有機化学的手法を用いて合成できるものである。なお、保護基を含むアミノ酸は特記が無い限り市販品をそのまま用いた。
(分析条件)
分析条件A
カラム;CORTECS(登録商標) UPLC(登録商標) C18 column(日本ウォーターズ社)、90Å、1.6μm、2.1x100mm
移動相:0.025%TFA inMeCN/0.025%TFA inH2O
温度:40℃
グラジエント:5-95% MeCN/0.025%TFA in H2O in 5.56min;linear gradient
流量0.4mL/min
検出法:UV 220nm
カラム;Kinetex EVO C18 2.6μm、2.1 IDx150mm、100Å(Phenomenex社)
カラム温度:60℃
移動相A:0.025%TFA in H2O
移動相B:0.025%TFA in CH3CN
グラジエント:各実施例に記載
流速:0.25mL/min
検出:PDA(225nm)
国際公開WO2014/119600号、国際公開 WO2012/033154号、又は国際公開 WO2007/066627号に記載されているスクリーニング方法で、hTfR結合ペプチドを同定した。当該ペプチドが実際にhTfRに対する結合活性を持つかどうかを確認する目的で、化学合成した。合成したペプチドの配列を、表1に示す。
合成した各種ペプチドについて、トランスフェリン受容体(hTfR)に対するペプチドの表面プラスモン共鳴(SPR)による分子間相互作用を、以下に示す方法によって試験を実施した。具体的な試験方法を以下に示す。
BiacoreT200(グローバルライフサイエンステクノロジーズジャパン株式会社)にNTAセンサーチップ(グローバルライフサイエンステクノロジーズジャパン株式会社)を挿入し、ランニング緩衝液:10mM HEPES pH8.0(ナカライテスク株式会社)、150mM NaCl(ナカライテスク株式会社)、0.05% Tween 20(ナカライテスク株式会社)、0.1% BSA(SIGMA-ALDRICH)、1.0% DMSO(富士フィルム 和光純薬株式会社)でプライム操作を3回実施し、流速30μL/minで平衡化した。350mM EDTA溶液を流速10μL/minで60秒反応させ、0.5mM NiCl2溶液(キシダ化学)を流速10μL/minで60秒反応させた後、3mM EDTA溶液(ナカライテスク株式会社)を流速10μL/minで60秒間、NTAセンサーチップを洗浄した。60mM EDC溶液(グローバルライフサイエンステクノロジーズジャパン株式会社)、650mM NHS溶液(グローバルライフサイエンステクノロジーズジャパン株式会社)を各々50μLずつ混合させた後、流速10μL/minで420秒反応させた。ランニング緩衝液で希釈して3.2μM hTfR溶液150μL調製し、流速10μL/minで600秒反応させNTAセンサーチップにhTfRを固定化した。固定化後、1.0M エタノールアミン水溶液(グローバルライフサイエンステクノロジーズジャパン株式会社)を流速10μL/minで420秒反応させキャッピングを行った。DMSO溶液中で10mMに調製されたペプチド溶解液を、終濃度が10μMのペプチド溶解液になるようにランニング緩衝液で希釈した後、100nM、50nM、25nM、10nM、5nMのペプチド溶液を作製した。上述のサンプルを用い、hTfRに対するペプチドのカイネティクスをSPR測定により取得した。カイネティックス評価モデルは、Single Cycle Kineticsとし、Biacore T200 Evaluation Software Version 3.0(グローバルライフサイエンステクノロジーズジャパン株式会社)を使用してカーブフィッティングを行った。得られたセンサーグラムに対して、最小二乗法によるカーブフィッティングを実施し、そのKD値を求めることでペプチドのhTfRに対する結合を評価した。このようにして求めたKD値について、KD値が1nM未満の場合はA、1nM以上100nM未満の場合はB、100nM以上1μM未満の場合はC、1μM以上の場合はDと表記して、表1に示す。結果として、hTfRNo.894及びそれと類似したアミノ酸配列を持つ環状ペプチドについて、顕著なhTfRとの結合能があることが示された。hTfRNo.894の化学構造は以下のとおりである。
hTfRNo.894について、ペイロードとして近赤外蛍光標識物質であるVivotag750(VivoTag-S(商標)750、パーキンエルマー社)をPEG11リンカーを介して結合させた化合物を合成した(hTfRNo.894-vivotag750、又はhTfR_000894_PEG11_(VivoTag)と示す)(配列番号146)。hTfR結合ペプチド-PEG11の化学構造は以下のとおりであり、当該化合物にVivo-tag750を結合させることで表記の化合物を合成した。詳細については以下に記す。
化学合成は以下の通り行った;
Fmoc-NH-SAL-PEG-resin 1500-2000Da(渡辺化学、0.38mmol/g)を用い、一般的方法にしたがって、Fmocの除去から開始し、目的のペプチドを合成した。その際、CEM社のLiberty Blueを固相合成機として使用し、製造元のマニュアルに従って行った。縮合反応は縮合剤にHATUを用い75℃で10分間1回反応させることを基本条件とした。ただし、11残基目、12残基目は25℃で20分間2回繰り返し反応を行った。13残基目、14残基目は75℃で10分間2回繰り返し反応を行った。15残基目は25℃で20分間1回反応を行った。16残基目は25℃で60分1回反応を行った。また、Fmoc除去は20%piperidineのDMF溶液と75℃で3分間反応させることを基本条件とした。ただし、13残基目、15残基目に関してはFmoc除去は25℃で5分間反応させた後、10分間反応させることで行った。クロロアセチル基の導入は前工程で得られた樹脂に対し、5等量のクロロ酢酸のDMF溶液(0.2M)、5等量のHATUのDMF溶液(0.5M)、10等量のDIPEAのDMF溶液(1M)を固相樹脂に加え室温にて30分振盪することにより行った。側鎖の脱保護および固相樹脂からの切り出しは、まずクロロアセチル基導入工程後に得られた樹脂をDMFで5回と塩化メチレンで3回洗浄し減圧下乾燥した。続いて固相樹脂の入った反応容器に、反応剤カクテル-A(TFA/H2O/TIS/DODTの体積比92.5:2.5:2.5:2.5の混合物)を加え、室温で90分振盪した。反応液をフリットより濾過回収した。反応容器に残った固相樹脂は切り出し用カクテルと再度振盪し、フリットより溶液成分を回収、前述の濾液と混合した。この濾液を0℃に冷やした過剰のジエチルエーテルとヘキサンの混溶媒に加えると、白濁沈殿が生じた。この混合物を遠心分離し(10000rpm、1min)、上澄みをデカンテーションした。得られた
固体を氷冷したジエチルエーテルにて洗浄後、乾燥させた。得られた固体を次の環化反応に用いた。ペプチドの環化反応はペプチドの終濃度が固相樹脂のモル数を基に5mMとなるようにDMSOに溶解後、6等量のトリエチルアミンを加えて、室温で終夜振盪した後、Savant Explorer SpeedVacで減圧濃縮した後、逆相HPLCで精製した。得られたペプチド(26.1mg、9.30umol)をDMSO/H2O(9/1)に溶解し、0.91等量のVivoTag-NHS、4.5等量のDIEAを加え45分攪拌した。反応溶液にAcOHを加えクエンチした。
分析条件B:保持時間=13.20分:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%。
ESI-MS(+) 観測値m/z=1226.4(M+3H)3+
hTfRNo.894-vivotag750のコントロールとして、No.894の配列を反転させた以下のアミノ酸配列を有する環状ペプチドと、vivotag750とがPEG11リンカーを介して結合したコンジュゲートを合成した(hTfRNo.894FLIP-vivotag750又はFLIP_000894_PEG11_K_FITCと示す)。
FLIP配列:ClAc-Ala-MeTyr-Tyr-Arg-Arg-Ile-Ile-Tyr-Tyr-Asn-Trp-Val-Phe-Val-Cys(配列番号202)
ペプチドコンジュゲートの合成および精製は、Sieber amide resin(渡辺化学、0.6mmol/g、0.33g)を開始レジンとして用いた以外は、実施例3と同様に行った。
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し95.5%であった。
分析条件B:保持時間=13.5分:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%。
ESI-MS(+) 観測値m/z=1226.4(M+3H)3+
上記の通り得られた化合物のN末端を、Vivotag750(VivoTag-S(商標)750、パーキンエルマー社)のプロトコルに従って標識し、表記の化合物を得た。
また、合成した前記コンジュゲートについて、実施例2に従ってSPRによるhTfRとの結合能を確認したところ、hTfRとの結合は認められなかった。
〔試液の調製〕
ヒドロキシプロピル-β-シクロデキストリン(和光純薬工業社)を、20w/v%の濃度になるよう水に溶解し、これを20%ヒドロキシプロピル-β-シクロデキストリン溶液とした。
hTfRNo.894-vivotag750 conjugate投与液(No.894投与液):実施例2で合成したhTfRNo.894-vivotag750 conjugateの5mM溶液6μLに、ジメチルスルホキシド(DMSO、シグマアルドリッチ社)4.8μLを添加し、さらに20%ヒドロキシプロピル-β-シクロデキストリン溶液を66μLを加えてよく混合した。これに、さらにポリエチレングリコール400を48μLを加えて混和したものをNo.894-投与液とした。No.894投与液中のhTfRNo.894-FITC conjugate濃度は250μMとなっている。
hTfRNo.894FLIP-vivotag750 conjugate投与液(No.894NC投与液):前述のhTfRNo.894FLIP-vivotag750 conjugateの5mM溶液6μLに、20%ヒドロキシプロピル-β-シクロデキストリン溶液を66μLを加えてよく混合した。これに、さらにポリエチレングリコール400を48μLを加えて混和したものをNo.894NC投与液とした。No.894FLIP投与液中のhTfRNo.894FLIP-vivotag750conjugate濃度は250μMとなっている。
国際公開WO2016-208695の記載に従って、細胞内領域がマウスhTfRのアミノ酸配列であり、細胞外領域がヒトhTfRのアミノ酸配列であるキメラhTfRをコードするcDNAの3’側に、loxP配列で挟み込んだネオマイシン耐性遺伝子を配置した塩基配列を有するDNA断片と、5’アーム配列、3’アーム配列を有するターゲッティングベクターを作成した。作成したターゲッティングベクターを、マウスES細胞にエレクトロポレーション法により導入した。遺伝子導入後のマウスES細胞を、ネオマイシン存在下で選択培養し、ターゲッティングベクターが相同組換えにより染色体に組み込まれたマウスES細胞を選択した。得られた遺伝子組換えマウスES細胞を、ICRマウスの8細胞期胚(宿主胚)へ注入し、精管結紮を行ったマウスとの交配によって得られた偽妊娠マウス(レシピエントマウス)に移植した。得られた産仔(キメラマウス)について毛色判定を行い、ES細胞が生体の形成に高効率で寄与した個体、すなわち全体毛に対する白色毛の占める比率の高い個体を選別した。このキメラマウス個体をC57BL6/Jマウスと掛け合わせてF1マウスを得た。白色のF1マウスを選別し、尻尾の組織より抽出したDNAを解析し、染色体上でマウストランスフェリン受容体遺伝子がキメラhTfRにヘテロに置き換わっているマウスをTfR-KIマウスとした。
次いで、TfR-KIマウスを用いた脳移行性評価試験を実施した。hTfRを発現しているTfR-KIマウス(雌、12週齢)に対してNo.894投与液またはNo.894NC投与液を100μLずつ尾静脈内に急速投与した。投与から1時間後に、マウスをイソフルランで麻酔し、左心室より生理食塩水を4~5分間灌流して脱血処理した。その後、蛍光強度を測定する組織(脳、心臓、肺、肝臓、脾臓、腎臓、大腿四頭筋、胸腺、胸椎、大腿骨)を採取し、乾燥させないように生理食塩水中で保管した。In vivo発光・蛍光イメージングシステムIVIS LuminaIII(パーキンエルマー社)及び蛍光色素VivoTag750用のフィルターセットを用い、取扱説明書に従って蛍光強度を測定した。
各組織における蛍光強度測定結果を図1、図1-2、図1-3及び図2に示す。
図における“#894”表記はhTfRNo.894-vivotag750 conjugateの投与群を、“#894FLIP”表記はhTfRNo.894FLIP-vivotag750 conjugate投与群を示す。なお、各写真の右側のバーは平均放射効率(Average Radiant Efficiency、[p/sec/cm2/sr]/[μW/cm2])を示す。
図1-1の(1)Brainは脳の写真を示し、(2)Liver(Left lateral lobe)は肝臓の外側左葉区域の写真を示し、(3)Kidneyは腎臓の写真を示し、(4)Lungは肺の写真を示し、(5)Thoracic vertebraeは胸椎の写真を示す。カラースケールは、(1)については最低値が5.00×107、最大値が1.3×108を、(2)及び(3)については最低値が6.00×108、最大値が2.4×1010を、(3)及び(4)については最低値が4.5×108、最大値が5.4×109を示す。図1-2の(1)Heartは心臓の写真を示し、(2)Spleenは脾臓の写真を示し、(3)Thymusは胸腺n写真を示す。なお、カラースケールは最低値が4.83×107、最大値が4.8×109を示す。
図1-3の(1)Quadricepsは大腿四等筋の写真を示し、(2)Femurは大腿骨の写真を示す。なお、カラースケールは最低値が1.5×108、最大値が1.5×109を示す。図2は図1-1(1)脳の拡大写真である。
図1-1,1-2,1-3及び図2より、hTfRNo.894-vivotag750 conjugate投与群の方がhTfRNo.894FLIP-vivotag750 conjugate投与群よりも強い蛍光が検出された組織は腎臓、胸椎、心臓、大腿骨、大腿四頭筋および脳であった。hTfRNo.894FLIP-vivotag750 conjugate投与群の方がhTfRNo.894-vivotag750 conjugate投与群よりも強い蛍光が検出された組織は肝臓と脾臓であった。
本試験により、hTfR結合性特殊環状ペプチドNo.894はhTfR-KIマウスにおいてTfRへの結合を介しBBBを通過し脳内へ移行すること、および筋組織を中心とした各組織へ移行することが確認された。
[hTfR結合性特殊環状ペプチドNo.894と蛍光物質FITCのコンジュゲートの作成]
hTfR結合性特殊環状ペプチドNo.894と蛍光物質FITCのコンジュゲートについては、実施例3で合成したhTfRNo.894-PEG11を用い、FITC標識キット(同仁化学社)のプロトコルに従って合成した。また、合成した前記コンジュゲートについて、実施例2に従ってSPRによるhTfRとの結合能を確認したところ、KD=0.28nMであった。
実施例5と同様に、hTfR結合性特殊環状ペプチドNo.894と蛍光物質FITCのコンジュゲートをhTfR-KIマウスに投与した。投与量は3.7mg/kgとなるようにした。
投与から1時間後に、マウスをイソフルランで麻酔し、左心室より生理食塩水を4~5分間灌流して脱血処理した。その後、蛍光強度を測定する脳を採取し、乾燥させないように生理食塩水中で保管した。この脳組織を用いて、抗FITC抗体(MLBバイオサイエンス社)を用いて免疫組織化学染色を行った。脳組織中の抗FITC抗体の免疫組織化学染色は公知の方法により行い、蛍光顕微鏡により観察を行った。結果を図3に示す。なお、図中における赤矢印は脳毛細血管を、矢頭はプルキンエ細胞を指す。(1)は#894-FITC投与群の写真を、(2)はコントロールとして#894-FITCを投与しない群の写真を示す。
投与量を3.7mg/kg、10分ごとに投与、計6回にした以外は前記single doseと同様にhTfR結合性特殊環状ペプチドNo.894と蛍光物質FITCのコンジュゲートのhTfR-KIマウスに投与し、脳組織中の前記コンジュゲートの局在を免疫組織化学染色により確認した。結果を図4に示す。なお、図中における赤矢印は脳毛細血管を、矢頭はプルキンエ細胞を、黄矢印は樹状突起を指す。(1)は#894-FITC投与群の写真を、(2)はコントロールとして#894-FITCを投与しない群の写真を示す。
[hTfRNo.894のバリアント、リンカー付加ペプチドの合成]
hTfRNo.894のアミノ酸配列に数個のアミノ酸が挿入、欠損、置換された配列を有するペプチド(バリアントとも言う)及び各種リンカーが結合したペプチドを合成し、同様にSPRによるhTfRとの結合能を確認した。バリアントペプチドは、実施例9又は10に記載が無い限りは実施例1に従って合成した。リンカー付加ペプチドは、リンカーがPEGである場合はFmoc-NH-SAL-PEG resin(渡辺化学)をペプチド合成のレジンとして用いた以外は実施例1に従って合成した。ペプチドや脂肪酸、PEGとそれらの複合体のリンカーが付加したペプチドについても、実施例9又は10に記載が無い限りは実施例1に従って合成した。それらのSPR測定から求めたKD値について、KD値が1nM未満の場合はA、1nM以上100nM未満の場合はB、100nM以上1μM未満の場合はC、1μM以上の場合はDと表記した結果を、表2~表4に示す。
表2:ペプチド又はリンカー付加ペプチド
ヒト乳がん細胞BT-549(コスモバイオ社)の培養には、10%FBSおよび2mmol/L L-Glutamineを含むRPMI-1640培地(サーモフィッシャーサイエンティフィック)を用いた。培養は370℃、5%CO2条件下で行った。
Collagen Type I(コーニング社)を50μg/mLとなるよう20mmol/L 酢酸で希釈した。24ウェルプレートの各ウェルに滅菌済みカバーガラスを1枚ずつ置き、希釈したCollagen Type I溶液を添加後、37℃で1時間保温した。Collagen Type I溶液を除き、PBSで3回洗浄した。1ウェルあたり1×105個のヒト乳がん細胞BT-549を播種し、37℃、5%CO2条件下で一晩培養した。
hTfR_894_3m_PEG4dk5FAM(配列番号446)、hTfR_894_variant03_PEG4dk5FAM(配列番号448)、hTfR_894_variant61_PEG4dk5FAM(配列番号447)及びネガティブコントロールとしてFlip894_variant61_PEG4dk5FA(配列番号449)Mを試料として用いた。
得られた粗中間体ペプチドは以下の条件を用いて精製した(カラム;WaterS Xbridge(登録商標) C18 5μmμm OBD(登録商標) 50x150mm:移動相;A=0.1%TFA in H2O、B=0.1%TFA in MeCN:温度 40℃:グラジエント(%B);3分間かけて9-34%、その後8分間かけて34-39%、その後1分かけて39-60%:流量 120mL/min)。凍結乾燥後、以下の条件を用いて再度精製した(カラム;COSMOSIL PBr 10x150mm:移動相;A=0.1%TFA in H2O、B=0.1%TFA in MeCN:温度 40℃:グラジエント(%B);3分間かけて21-46%、その後8分間かけて46-51%、その後1分かけて51-60%:流量5mL/min)。
分析条件B:保持時間=4.47分:カラム;Kinetex EVO C18 2.6μmμm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分かけて95%:流量 0.5mL/min。
ESI-MS(+) 観測値m/z=944.42(M+3H)3+
hTfR_894_3m_PEG4dk5FAMと同様に合成、環化したhTfR_894_3m_PEG4、hTfR_894_variant03_PEG4、hTfR_894_variant61_PEG4及びFlip894_variant61_PEG4に対し、同様に5-FAMから調整したF-FAM-NHSを加え、前記のコンジュゲートを得た。
なお、合成した各種コンジュゲートについては、実施例2と同様にSPRにてhTfRへの結合を確認した。Flip894_variant91_PEG4のみhTfRへの結合は認められなかった。
試料の希釈には希釈用培地(0.5%ウシ血清アルブミンおよび20μg/mLヒトトランスフェリンホロ型を含むRPMI 1640培地)を用いた。試料を100nmol/Lとなるよう希釈用培地で希釈した。
24ウェルプレートで一晩培養した細胞BT-549がカバーガラスに接着していることを確認した後、RPMI 1640培地で2回洗浄した。0.5%ウシ血清アルブミンを含むRPMI 1640培地を500μL/well添加して氷上で15分間静置した後、希釈した試料溶液を500μL/well添加して、37℃、5%CO2条件下で3時間静置した。
24ウェルプレートから試料溶液を除き、PBSで細胞BT-549を3回洗浄した。4%パラホルムアルデヒド・りん酸緩衝液(富士フィルム和光純薬社)を500μL/well添加し、室温で15分間静置した後、PBSで3回洗浄した。さらに、PBSで2 μg/mLに希釈したHoechst 33342(サーモフィッシャーサイエンティフィック)を500μL/well添加し、室温、遮光下で10分間静置した後、PBSで3回洗浄した。24ウェルプレートからカバーガラスを取り出し、Fluorescent Mounting Medium(アジレント社)を用いてスライドガラス上に封入し、室温、遮光下で一晩静置した。観察には倒立型蛍光顕微鏡DMI6000B(ライカマイクロシステムズ社)を用い、FITCおよびDAPI検出用の波長で観察した。結果を図5に示す。なお、図中のスケールバーは50μmを示す。
図5で確認できるように、hTfR_894_3m_PEG4dk5FAM、hTfR_894_variant03_PEG4dk5FAM、hTfR_894_variant61_PEG4dk5FAMは細胞内への移行が確認できたが、hTfRへの結合脳を持たないペプチドを有するFlip894_variant91_PEG4は細胞内へ移行しなかった。この結果より、hTfR_894及びhTfRへの結合能を有する改変体は、hTfRへの結合を介して細胞内に移行することが示された。
引き続き、得られた固相樹脂を用い、前述の一般的方法に従い、側鎖の脱保護および固相樹脂からの切り出し、および環化反応を行った。
得られた粗生成物は以下の条件を用いて精製した(カラム;WaterS Xbridge(登録商標) C18 5μmμm OBD(登録商標) 50x150mm:移動相;A=0.1%TFA in H2O、B=0.1%TFA in MeCN:温度 40℃:グラジエント(%B);3分間かけて8-33%、その後8分間かけて33-38%、その後1分かけて38-60%:流量 120mL/min)。
分析条件A:保持時間=3.57分:ESI-MS(+) 観測値m/z=理論値(M+3H)3+
分析条件B:保持時間=12.8分:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%。
ESI-MS(+) 観測値m/z=899.6(M+3H)3+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し97.4%であった。
分析条件B:保持時間=11.93分:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%
ESI-MS(+) 観測値m/z=1211.6(M+2H)2+
分析条件B:保持時間=10.57分:カラム Kinetex EVO C18 2.6μm、2.1x150mm、100Å:移動相; A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 40℃:グラジエント(%B conc) 20分間かけて20 - 60%、その後1分間かけて60 - 95%、その後5分間かけて95-95%:流量 0.25mL/min。
ESI-MS(+) 観測値m/z=1378.48(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し97.1%であった。
分析条件B:保持時間=4.29分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分間かけて95-95%:流量0.5mL/min。
ESI-MS(+) 観測値m/z=1154.72(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し93.1%であった。
分析条件B:保持時間=12.76分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%:流量0.25mL/min。
ESI-MS(+) 観測値m/z=1196.12(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し97.5%であった。
分析条件B:保持時間=6.07分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分かけて95-95%:流量0.5mL/min。
ESI-MS(+) 観測値m/z=1036.90(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し87.5%であった。
分析条件B:保持時間=16.50分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%:流量0.25mL/min
ESI-MS(+) 観測値m/z=1160.58(M+2H)2+
分析条件B:保持時間=13.03分:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%。
ESI-MS(+) 観測値m/z=1137.23(M+2H)2+
得られた環状ペプチド-NHSエステル(25mg、11.3μmol)をDMF(225μL)に溶解しFmoc-MeK-OH塩酸塩(5mg、11.9μmol)及びDIEA(5.9μL、33.9μmol)を加え攪拌した。1時間後、反応液にEt2NH(5.9μL、56.5μmol)を加え攪拌した。1時間後、酢酸でクエンチした。
得られた粗生成物は以下の条件を用いて精製した(カラム;WaterS Xbridge(登録商標)C18 5μm(登録商標) 19x150mm:移動相;A=0.1%TFA in H2O、B=0.1%TFA in MeCN:温度 60℃:グラジエント(%B);3分間かけて8-33%、その後8分かけて33-38%、その後1分かけて38-60%:流量17mL/min。
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し97.9%であった。
分析条件B:保持時間=12.33分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å;:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%
ESI-MS(+) 観測値m/z=1134.34(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し94.9%であった。
分析条件B:保持時間=11.81分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 40℃:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%:流量0.25mL/min。
ESI-MS(+) 観測値m/z=1127.76(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し98.2%であった。
分析条件B:保持時間=13.18分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 40℃:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95-95%:流量0.25mL/min。
ESI-MS(+) 観測値m/z=1072.49(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し95.4%であった。
分析条件B:保持時間=12.64分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å;:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%:流量0.25mL/min
ESI-MS(+)観測値m/z=1195.87(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し94.8%であった。
分析条件B:保持時間=4.31分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分かけて95-95%:流量0.5mL/min
ESI-MS(+) 観測値m/z=1324.94(M+2H)2+
ーテルにて洗浄後、乾燥させた。得られた固体を次の環化反応に用いた。ペプチドの環化反応はペプチドの終濃度が固相樹脂のモル数を基に5mMとなるようにDMFに溶解後、1.5等量のHATU、3等量のトリエチルアミンを加えて、室温で約1時間振盪した。得られた反応溶液をSavant Explorer SpeedVaCを用いて減圧濃縮した。
分析条件B:保持時間=10.03分:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%
ESI-MS(+) 観測値m/z=1033.0(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し94.8%であった。
分析条件B:保持時間=13.78分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å;:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度℃:60℃:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95-95:流量0.25%
ESI-MS(+) 観測値m/z=1072.26(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し89.0%であった。
分析条件B:保持時間=3.67分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分かけて95-95%:流量0.5mL/min
ESI-MS(+) 観測値m/z=1055.13(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し94.8%であった。
分析条件B:保持時間=4.76分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å;:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分かけて95%
ESI-MS(+) 観測値m/z=1093.23(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し92.2%であった。
分析条件B:保持時間=11.52分:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%
ESI-MS(+) 観測値m/z=1078.24(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し97.3%であった。
分析条件B:保持時間=3.53分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分間かけて95-95%:流量0.5mL/min
ESI-MS(+) 観測値m/z=1337.32(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し92.3%であった。
分析条件B:保持時間=5.28分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分かけて95-95%:流量0.5mL/min
ESI-MS(+) 観測値m/z=1136.17(M+2H)2+
固体を氷冷したジエチルエーテルにて洗浄後、乾燥させた。得られた固体を次の環化反応に用いた。ペプチドの環化反応はペプチドの終濃度が固相樹脂のモル数を基に5mMとなるようにDMSOに溶解後、6等量のトリエチルアミンを加えて、室温で終夜振盪した。得られた反応溶液に1.1等量のFAM-OSuのDMSO溶液(0.71M)を加え30分攪拌した。反応溶液にAcOHを加えクエンチし、減圧下溶媒を濃縮した。
分析条件B:保持時間=13.20分:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%
ESI-MS(+) 観測値m/z=793.2 理論値 792.6(M+4H)4+
精製した中間体ペプチド(29.8mg、10.6μmol)をDMSO(424μL)にに溶かし、1.1等量のフルオレセイン-5-マレイミド、5等量のDIEA を加え1時間攪拌後、酢酸でクエンチした。
得られた粗生成物は以下の条件を用いて精製した(カラム; COSMOSIL PBr 10x150mm:移動相;A=0.1%TFA in H2O、B=0.1%TFA in MeCN:温度 40℃:グラジエント(%B);3分間かけて23-48%、その後8分間かけて48-53%、その後1分かけて53-60%:流量5mL/min)。
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し82.8%であった。
分析条件B:保持時間=13.93分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 40℃:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%:流量0.25mL/min
ESI-MS(+) 観測値m/z=1076.51 理論値(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し94.8%であった。
分析条件B:保持時間=5.45分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分かけて95-95%:流量0.5mL/min
ESI-MS(+) 観測値m/z=1289.65(M+2H)2+
得られた粗生成物は以下の条件を用いて精製した(カラム:WaterS Xbridge(登録商標) C18 5μm(登録商標) 50x150mm;移動相:A=0.1%TFA in H2O、B=0.1%TFA in MeCN;温度:40℃;グラジエント(%B):3分間かけて7-32%、その後8分間かけて32-37%、その後1分かけて37-60%;流量;120mL/min)。
分析条件B:保持時間=4.12分;カラム Kinetex EVO C18 2.6μm、2.1x150mm、100Å;移動相 A=0.025%TFA in H2O、B=0.025%TFA in MeCN;温度 60℃;グラジエント(%B conc) 7.15分間かけて20 - 60%、その後0.3分間かけて60 - 95%、その後1.55分間かけて95-95%;流量:0.5mL/min
ESI-MS(+) 観測値m/z=1147.70(M+2H)2+
得られた粗生成物は以下の条件を用いて精製した(カラム:WaterS Xbridge(登録商標) C18 5μm(登録商標) 50x150mm;移動相:A=0.1%TFA in H2O、B=0.1%TFA in MeCN;温度:40℃;グラジエント(%B):2分間かけて6-6%、その後1分間かけて6-31%、その後8分かけて31-36%、その後1分かけて36-60%;流量;1分かけて20-20mL/min、その後1分かけて20-120mL/min、その後120mL/min)。
分析条件:保持時間=3.75分;カラム Kinetex EVO C18 2.6μm、2.1x150mm、100Å;移動相 A=0.025%TFA in H2O、B=0.025%TFA in MeCN;温度 60℃;グラジエント(%B conc) 7.15分間かけて20 - 60%、その後0.3分間かけて60 - 95%、その後1.55分間かけて95-95%;流量:0.5mL/min
ESI-MS(+) 観測値m/z=1133.66(M+2H)2+
得られた粗生成物は以下の条件を用いて精製した(カラム:WaterS Xbridge(登録商標) C18 5μm(登録商標) 50x150mm;移動相:A=0.1%TFA in H2O、B=0.1%TFA in MeCN;温度:40℃;グラジエント(%B):2分間かけて8-8%、その後1分間かけて8-33%、その後8分かけて33-38%、その後1分かけて38-60%;流量;1分かけて20-20mL/min、その後1分かけて20-120mL/min、その後120mL/min)。
分析条件B:保持時間=3.97分;カラム Kinetex EVO C18 2.6μm、2.1x150mm、100Å;移動相 A=0.025%TFA in H2O、B=0.025%TFA in MeCN;温度 60℃;グラジエント(%B conc) 7.15分間かけて20 - 60%、その後0.3分間かけて60 - 95%、その後1.55分間かけて95-95%;流量:0.5mL/min
ESI-MS(+) 観測値m/z=1108.62(M+2H)2+
得られた粗生成物は以下の条件を用いて精製した(カラム:WaterS Xbridge(登録商標) C18 5μm(登録商標) 50x150mm;移動相:A=0.1%TFA in H2O、B=0.1%TFA in MeCN;温度:40℃;グラジエント(%B):3分間かけて13-38%、その後8分間かけて38-43%、その後1分かけて43-60%;流量;120mL/min)。
分析条件:保持時間=4.91分;カラム Kinetex EVO C18 2.6μm、2.1x150mm、100Å;移動相 A=0.025%TFA in H2O、B=0.025%TFA in MeCN;温度 60℃;グラジエント(%B conc) 7.15分間かけて20 - 60%、その後0.3分間かけて60 - 95%、その後1.55分間かけて95-95%;流量:0.5mL/min
ESI-MS(+) 観測値m/z=1177.95(M+2H)2+
得られた粗生成物は以下の条件を用いて精製した(カラム:WaterS Xbridge(登録商標) C18 5μm(登録商標) 50x150mm;移動相:A=0.1%TFA in H2O、B=0.1%TFA in MeCN;温度:40℃;グラジエント(%B):3分間かけて21-46%、その後8分間かけて46-51%、その後1分かけて51-60%;流量;120mL/min)。
分析条件:保持時間=6.24分;カラム Kinetex EVO C18 2.6μm、2.1x150mm、100Å;移動相 A=0.025%TFA in H2O、B=0.025%TFA in MeCN;温度 60℃;グラジエント(%B conc) 7.15分間かけて20 - 60%、その後0.3分間かけて60 - 95%、その後1.55分間かけて95-95%;流量:0.5mL/min
ESI-MS(+) 観測値m/z=1198.29(M+2H)2+
得られた粗生成物は以下の条件を用いて精製した(カラム:WaterS Xbridge(登録商標) C18 5μm(登録商標) 50x150mm;移動相:A=0.1%TFA in H2O、B=0.1%TFA in MeCN;温度:40℃;グラジエント(%B):3分間かけて18-43%、その後8分間かけて43-48%、その後1分かけて48-60%;流量;120mL/min)。
分析条件:保持時間=6.15分;カラム Kinetex EVO C18 2.6μm、2.1x150mm、100Å;移動相 A=0.025%TFA in H2O、B=0.025%TFA in MeCN;温度 60℃;グラジエント(%B conc) 7.15分間かけて20 - 60%、その後0.3分間かけて60 - 95%、その後1.55分間かけて95-95%;流量:0.5mL/min
ESI-MS(+) 観測値m/z=1142.36(M+2H)2+
[合成例1-7]
894_variant_61_G_Azi(配列番号543)の合成
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し92.8%であった。
分析条件B:保持時間=6.22分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分かけて95-95%:流量0.5mL/min
ESI-MS(+) 観測値m/z=1142.31(M+2H)2+
[合成例1-8]
hTfR_894_3m_G_PEG4_gAbu(NHS)(配列番号635記載のリンカーと配列番号296のペプチドの複合体)の合成
分析条件B:保持時間=4.25分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 40℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分間かけて95-95%:流量0.5mL/min
ESI-MS(+) 観測値m/z=1292.86(M+2H)2+
[合成例1-9]
894_C12NH2(脂肪酸リンカーと配列番号1の複合体)の合成
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し96.3%であった。
分析条件B:保持時間=12.61分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025% TFA in MeCN:温度 60℃:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%:流量0.25mL/min
ESI-MS(+) 観測値m/z=1140.56(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し90.6%であった。
分析条件B:保持時間=11.34分:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%
ESI-MS(+) 観測値m/z=1163.59(M+2H)2+
分析条件B:保持時間=11.33分:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%
ESI-MS(+) 観測値m/z=1424.0(M+2H)2+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し96.1%であった。
分析条件B:保持時間=3.52分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分間かけて95-95%:流量0.5mL/min
ESI-MS(+) 観測値m/z=1301.89(M+2H)2+
分析条件B:保持時間=9.53分:グラジエント(%B conc);20分間かけて20-60%、その後1分間かけて60-95%、その後5分かけて95%
ESI-MS(+) 観測値m/z=1005.7(M+3H)3+
得られた粗中間体ペプチドは以下の条件を用いて精製した(カラム;WaterS Xbridge(登録商標) C18 5μm OBD(登録商標) 50x150mm:移動相;A=0.1%TFA in H2O、B=0.1%TFA in MeCN:温度 40℃:グラジエント(%B);3分間かけて5-30%、その後8分間かけて30-35%、その後1分かけて35-60%:流量120mL/min)。
得られた中間体ペプチドのDMSO溶液(22mM、160μL)に対し、1.3等量のBiotin-NHS及び5等量のDIEAを加え室温で攪拌した。2.5時間後、反応液を酢酸でクエンチした。
得られた粗生成物は以下の条件を用いて精製した(カラム;WaterS Xbridge(登録商標) C18 5μm OBD(登録商標) 19x150mm:移動相;A=0.1%TFA in H2O、B=0.1%TFA in MeCN:温度 60℃:グラジエント(%B);3分間かけて10-35%、その後8分間かけて35-40%、その後1分かけて40-60%:流量17mL/min)。
分析条件B:保持時間=4.30分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分かけて95%:流量0.5mL/min
ESI-MS(+) 観測値m/z=1017.76(M+3H)3+
得られた粗中間体ペプチドは以下の条件を用いて精製した(カラム;WaterS Xbridge(登録商標) C18 5μm OBD(登録商標) 50x150mm:移動相;A=0.1%TFA in H2O、B=0.1%TFA in MeCN:温度 40℃:グラジエント(%B);3分間かけて9-34%、その後8分間かけて34-39%、その後1分かけて39-60%:流量120mL/min)。
凍結乾燥後、得られた中間体ペプチドのDMF溶液(15mM)に対し、2等量のCuSO4・5H2O水溶液(100mM)及び10等量のアスコルビン酸水溶液(500mM)を加えた後、2等量のN-プロパルギルマレイミドのDMF溶液(100mM)を加え室温で攪拌した。
得られた粗生成物は以下の条件を用いて精製した(カラム;COSMOSIL PBr 10x150mm:移動相;A=0.1%TFA in H2O、B=0.1%TFA in MeCN:温度 40℃:グラジエント(%B);3分間かけて17-42%、その後8分間かけて42-47%、その後1分かけて47-60%:流量5mL/min)。
分析条件B:保持時間=11.37分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 40℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分かけて95%:流量0.25mL/min
ESI-MS(+) 観測値m/z=1303.33(M+3H)3+
目的物の純度は分析条件BのLC/MS(UV波長225nm)クロマトグラムの面積比から算出し95.5%であった。
分析条件B:保持時間=4.84分:カラム;Kinetex EVO C18 2.6μm 2.1x150mm、100Å:移動相;A=0.025%TFA in H2O、B=0.025%TFA in MeCN:温度 60℃:グラジエント(%B conc);7.2分間かけて20-60%、その後0.3分間かけて60-95%、その後1.6分かけて95%:流量0.5mL/min。
ESI-MS(+) 観測値m/z=1178.06(M+2H)2+
[合成例2-1]
(S)-2-[[(9H-フルオレン-9-イルメトキシ)カルボニル]アミノ]-3-(7-クロロ-1-エチル-1H-インドール-3-イル)プロパン酸(W1Et7Cl)の合成
窒素雰囲気下、亜鉛(8g、122mmol)のDMF懸濁液(50mL)にヨウ素(1.6g、12.6mmol)を加え、引き続きメチル(2R)-2-[[(9H-フルオレン-9-イルメトキシ)カルボニル]アミノ]-3-ヨードプロパノエート(18.5g、41mmol)を加え、室温にて30分間撹拌した。この反応液に前述で得られた生成物の一部(15g、49mmol)のDMF(300mL)溶液を加え、引き続き、SPhos(0.84g、2.0mmol)とPd2(dba)3(1.1g、1.2mmol)を加え、混合物を50℃にて4時間撹拌した。反応を水で停止し、固体をろ別、ろ液を酢酸エチル(400mL)で四回抽出した。合わせた有機層を、水(200mL)で四回洗浄した。有機層を無水硫酸ナトリウムで乾燥し、ろ過後濃縮した。得られた残渣をシリカゲルカラムクロマトグラフィー(酢酸エチル:石油エーテル=2:8)で精製した。
得られた生成物の一部(18g、35.8mmol)と1,4-ジオキサン(200mL)の混合物に、塩化水素(60g、1.7mol)を吹き込み、100℃にて4時間撹拌した。反応液を濃縮した後、残渣を逆相シリカゲルカラムクロマトグラフィー(水:アセトニトリル=100:0-0:100)にて精製し、表記物質を得た。
ESI-MS(+) 観測値m/z=489.10(M+H)+
(S)-2-[[(9H-フルオレン-9-イルメトキシ)カルボニル]アミノ]-3-(2-((ターシャリーブチルオキシカルボニル)アミノ)ピリジン-4-イル)プロパン酸(4Py6NH2)の合成
上記で得られた生成物の一部(10g、24.0mmol)を,ターシャリーブチルアルコール(110mL)中、Boc2O(6.3g、28.7mmol)、NaI(4.3g、28.7mmol)を加え、室温にて約16時間攪拌した。反応液を濃縮したのち、。得られた残渣を酢酸エチル80mLに溶解後、飽和食塩水(100mL)で三回洗浄した。有機層を無水硫酸ナトリウムで乾燥、ろ過、濃縮した。
得られた生成物の一部(3g、5.8mmol)、の2-プロパノール(30mL)溶液に、CaCl2(6.4g、58.0mmol)を加えた後、LiOH-H2O(0.28g、11.6mmol)の水溶液(5mL)を0℃にて加えた。混合液を室温にて約16時間撹拌した後、水60mLで希釈し、固体をろ別した。ろ液のpHをクエン酸水溶液を用いてpHを約6に調整し、酢酸エチル(40mL)で三回抽出した。合わせた有機抽出物を飽和食塩水(50mL)で三回洗浄し、無水硫酸ナトリウムで乾燥後、ろ過、濃縮した。残渣をシリカゲルカラムクロマトグラフィー(ジクロロメタン:メタノール=92:8)で精製し、表記物質を得た。ESI-MS(+) 観測値m/z=504.15(M+H)+
(S)-2-[[(9H-フルオレン-9-イルメトキシ)カルボニル]アミノ]-3-(6-((ターシャリーブチルオキシカルボニル)アミノ)ピリジン-3-イル)プロパン酸(3Py6NH2)の合成
N2-[[(9H-フルオレン-9-イルメトキシ)カルボニル]-N6-(4-メチルピペラジン-1-カルボニル)-L-リシン(KCOpipzMe)の合成
Nアルファ-[(9H-フルオレン-9-イルメトキシ)カルボニル]-1-(2-アミノ―2-オキソエチル)-L-トリプトファン(W1mCON)の合成
得られた成績体の一部(6g、16.6mmol)の酢酸エチル溶液(30mL)に塩化水素の酢酸エチル溶液(2M、30mL)を加え、室温で約16時間撹拌した。生成した固体をろ取し、これを酢酸エチル、ジエチルエーテルで洗浄した。得られた固体を1,4-ジオキサン(50mL)と水(10mL)に溶解後、2、5-ジオキシピロリジン-1-イル―9H-フルオレン-9-イル―メチルカーボネート(5.9g、17.5mmol)および炭酸水素ナトリウム(5.9g、69.9mmol)を0℃にて加えた。混合物を室温にて3時間撹拌後、水200mLで希釈した。クエン酸を加えてpHを5-6に調整した後、酢酸エチル(60mL)で三度抽出した。合わせた有機抽出物を飽和食塩水(100mL)で三度洗浄した。有機層を無水硫酸ナトリウムで乾燥、ろ過、濃縮した。残渣をシリカゲルカラムクロマトグラフィー(ジクロロメタン/メタノール=92/8)で精製し、表記化合物を得た。ESI-MS(+) 観測値m/z=484.25(M+H)+
Fmoc-Glu(d-Pro-O-allyl)-OH(Epryl2RCOO)の合成
前述の反応で得られた生成物の一部(2.6g、4.5mmol)とジクロロメタン/TFA(1:1、30mL)を室温にて3時間撹拌した。反応溶液を濃縮後、残渣をジクロロメタンに溶解し、飽和炭酸水素ナトリウム水溶液を加えpHを8以上に調整した。続いて塩酸を加え、pHを3-4に調整し、酢酸エチルで抽出した。有機層を無水硫酸ナトリウムで乾燥、ろ過、減圧濃縮し、表記化合物を得た。ESI-MS(+) 観測値m/z=507.40(M+H)+
Fmoc-Asp(d-Pro-O-allyl)-OH(Dpryl2RCOO)の合成
Fmoc-Lys(Gly-O-allyl)-OH(KaAC)の合成
前述で合成した生成物の一部(1.5g、2.6mmol)のジクロロメタン溶液(10mL)にTFA(10mL)を加え、室温にて約16時間撹拌した。反応溶液を濃縮し、トルエンを用いて3度共沸操作を行った。得られた残渣をジイソプロピルエーテルで洗浄し、55℃にて減圧乾燥し、表題化合物を得た。ESI-MS(+) 観測値m/z=510.40(M+H)+
N α -(((9H-フルオレン-9-イル)メトキシ)カルボニル)-1-(2-((ターシャリーブチルジメチルシリル)オキシ)エチル)-L-トリプトファン(Fmoc-W1EtOH-OH)の合成
窒素雰囲気下、得られた生成物の一部(16g、34.6mmol)のジクロロメタン(150mL)溶液に、2、6-ルチジン(20mL、172.9mmol)を加え、0℃にてTMSOTf(25mL、112mmol)を加えた。混合液を室温に昇温し、24時間攪拌した。反応溶液を濃縮した。得られた混合物にジオキサン(300mL)、水(150mL)を加えた後、炭酸水素ナトリウム(9.3g、110.35mmol、3.19等量)、9-フルオレニルメチ―N-スクシンイミジルカルボナート(14.0g、41.4mmol)を加え室温で約16時間攪拌した。固体を濾過し、濾液にクエン酸を加えpHを7に調整した。水200mLで希釈し、酢酸エチル(200mL)で三度抽出した。合わせた有機抽出物を飽和食塩水(200mL)で三度洗浄した。有機層を硫酸ナトリウムで乾燥、ろ過後、濃縮した。残渣をシリカゲルカラムクロマトグラフィー(酢酸エチル:ヘキサン(1:15)で精製し、表記化合物を得た。ESI-MS(+) 観測値m/z=585.15(M+H)+
Claims (40)
- トランスフェリンレセプターに結合するペプチドであって,
配列番号1に記載のアミノ酸配列(Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Ser-Cys);又は
配列番号1に記載のアミノ酸配列中に1以上10以下のアミノ酸残基の置換,欠失,付加及び/又は挿入を有するアミノ酸配列を有するペプチド。 - 請求項1に記載のペプチドであって,以下のグループ:
(I)配列番号1の1番目のアラニン残基の脂肪族アミノ酸又はメチル化脂肪族アミノ酸への置換;
(II)配列番号1の2番目のバリン残基の塩基性アミノ酸残基又はメチル化塩基性アミノ酸残基への置換;
(III)配列番号1の3番目のフェニルアラニン残基の芳香族アミノ酸残基,メチル化芳香族アミノ酸残基,芳香環を付加したアミノ酸残基,又は縮合環を付加したアミノ酸残基への置換;
(IV)配列番号1の4番目のバリン残基のメチル化バリン残基への置換;
(V)配列番号1の5番目のトリプトファン残基の芳香族アミノ酸残基,メチルトリプトファン残基,メチル化芳香族アミノ酸残基,芳香環を付加したアミノ酸残基,又は縮合環を付加したアミノ酸残基への置換;
(VI)配列番号1の6番目のアスパラギン残基の中性アミノ酸又はメチル化中性アミノ酸への置換;
(VII)配列番号1の7番目及び8番目のチロシン残基の芳香族アミノ酸残基,メチル化芳香族アミノ酸残基,芳香環を付加したアミノ酸残基,又は縮合環を付加したアミノ酸残基への置換;
(VIII)配列番号1の9番目のイソロイシン残基の脂肪族アミノ酸残基,メチル化脂肪族アミノ酸残基,又は分岐鎖構造を有するアミノ酸残基への置換;
(IX)配列番号1の10番目のイソロイシン残基の任意のアミノ酸への置換;及び
(X)配列番号1の11番目のセリン残基の中性アミノ酸残基への置換,
から選択される1つ以上の置換を有するアミノ酸配列を含むペプチド。 - 請求項1に記載のペプチドであって,
配列番号2(Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Arg-Arg-Tyr-MeTyr-Cys)に記載のアミノ酸配列を有するペプチドであるか,
配列番号2に記載のアミノ酸配列において,以下のグループ:
(I)配列番号2の1番目のアラニン残基の脂肪族アミノ酸又はメチル化脂肪族アミノ酸への置換;
(II)配列番号2の2番目のバリン残基の塩基性アミノ酸残基又はメチル化塩基性アミノ酸残基への置換;
(III)配列番号2の3番目のフェニルアラニン残基の芳香族アミノ酸残基,メチル化芳香族アミノ酸残基,芳香環を付加したアミノ酸残基,又は縮合環を付加したアミノ酸残基への置換;
(IV)配列番号2の4番目のバリン残基のメチル化バリン残基への置換;
(V)配列番号2の5番目のトリプトファン残基の芳香族アミノ酸残基,メチル化芳香族アミノ酸残基,芳香環を付加したアミノ酸残基,又は縮合環を付加したアミノ酸残基への置換;
(VI)配列番号2の6番目のアスパラギン残基の中性アミノ酸又はメチル化中性アミノ酸への置換;
(VII)配列番号2の7番目及び8番目のチロシン残基の芳香族アミノ酸残基,メチル化芳香族アミノ酸残基,芳香環を付加したアミノ酸残基,又は縮合環を付加したアミノ酸残基への置換;
(VIII)配列番号2の9番目のイソロイシン残基の脂肪族アミノ酸残基,メチル化脂肪族アミノ酸残基,又は分岐鎖構造を有するアミノ酸残基への置換;
(IX)配列番号2の10番目のイソロイシン残基の任意のアミノ酸への置換;
(XI)配列番号2の11番目及び12番目のアルギニン残基の塩基性アミノ酸残基への置換;
(XII)配列番号2の13番目のチロシン残基の親水性アミノ酸残基への置換;
(XIII)配列番号2の14番目のメチルチロシン残基のチロシン残基,芳香族アミノ酸残基又はメチル化芳香族アミノ酸残基への置換; 及び
(XIV)配列番号2の15番目のシステイン残基のメチル化システイン残基への置換,
から選択される1以上の置換を有するアミノ酸配列を含む,ペプチド。 - 請求項1に記載のペプチドであって,
ペプチドAを,配列番号18(Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Ser-Cys)の1番目~10番目に記載のアミノ酸配列を含む,ペプチド長が10以上17以下のペプチドとすると,
ペプチドA,
ペプチドAにおいて,1以上6以下のアミノ酸残基の置換,欠失,及び/又は挿入を有するアミノ酸配列を有するペプチド,
ペプチドAにおいて,配列番号18の2,3,5,8,及び10番目のいずれかのアミノ酸残基が置換されたアミノ酸配列を有するペプチド,及び
ペプチドAにおいて,
配列番号18の2番目のアミノ酸残基が,修飾されてもよいバリン(Val)又は修飾されてもよいグルタミン酸(Glu)であり,
配列番号18の3番目のアミノ酸残基が,修飾されてもよいフェニルアラニン(Phe)であり,
配列番号18の5番目のアミノ酸残基が,修飾されてもよいトリプトファン(Trp)であり,
配列番号18の8番目のアミノ酸残基が,修飾されてもよいチロシン(Tyr)であり,
配列番号18の10番目のアミノ酸残基が,修飾されてもよいイソロイシン(Ile)又は修飾されてもよいバリン(Val)であるペプチド,
のいずれかであるペプチド。 - 請求項4に記載のペプチドであって,ペプチド長が11以上13以下であるペプチド。
- 請求項1に記載のペプチドであって,
ペプチドBを,配列番号15(Ala-Val-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Val-Pro-Arg-Asp-Cys)の1番目~10番目に記載のアミノ酸配列を含む,ペプチド長が10以上19以下のペプチドとすると,
ペプチドB,
ペプチドBにおいて,1以上5以下のアミノ酸残基の置換,欠失,及び/又は挿入を有するアミノ酸配列を有するペプチド,
ペプチドBにおいて,配列番号15の2,3,5,8,及び10番目のいずれかのアミノ酸残基が置換されたアミノ酸配列を有するペプチド,及び
ペプチドBにおいて,
配列番号15の2番目のアミノ酸残基が,修飾されてもよいバリン(Val)又は修飾されてもよいグルタミン酸(Glu)であり,
配列番号15の3番目のアミノ酸残基が,修飾されてもよいフェニルアラニン(Phe)又はトリプトファン(Trp)であり,
配列番号15の5番目のアミノ酸残基が,修飾されてもよいトリプトファン(Trp)であり,
配列番号15の8番目のアミノ酸残基が,修飾されてもよいチロシン(Tyr)であり,
配列番号15の10番目のアミノ酸残基が,修飾されてもよいイソロイシン(Ile)又は修飾されてもよいバリン(Val)であるペプチド,
のいずれかであるペプチド。 - 請求項6に記載のペプチドであって,ペプチド長が13以上15以下であるペプチド。
- 請求項1に記載のペプチドであって,
ペプチドCを,配列番号214(MeA-Val-MeF3C-Val-MeW-Asn-Tyr-F4OMe-Ile-Ile-Arg-Arg-Phe-MeY-Cys)の1番目~10番目に記載のアミノ酸配列を含む,ペプチド長が11以上19以下のペプチドとすると, ペプチドC,
ペプチドCにおいて,1以上5以下のアミノ酸残基の置換,欠失,及び/又は挿入を有するアミノ酸配列を有するペプチド,
ペプチドCにおいて,配列番号214の1,3,5,及び8番目のいずれかのアミノ酸残基が置換されたアミノ酸配列を有するペプチド,及び
ペプチドCにおいて,
配列番号214の1番目のアミノ酸残基が,修飾されてもよいアラニン(Ala)又は修飾されてもよいグルタミン酸(Glu)であり,
配列番号214の3番目のアミノ酸残基が,修飾されてもよいフェニルアラニン(Phe)であり,
配列番号214の5番目のアミノ酸残基が,修飾されてもよいトリプトファン(Trp)であり,
配列番号214の8番目のアミノ酸残基が,修飾されてもよいフェニルアラニン(Phe)であるペプチド,
のいずれかであるペプチド。 - 請求項1に記載のペプチドであって,
ペプチドDを,配列番号219(Ala-Glu-Phe-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Arg-Arg-Tyr-MeY-Cys)の1番目~10番目に記載のアミノ酸配列を含む,ペプチド長が11以上19以下のペプチドとすると,
ペプチドD,
ペプチドDにおいて,1以上5以下のアミノ酸残基の置換,欠失,及び/又は挿入を有するアミノ酸配列を有するペプチド,
ペプチドDにおいて,配列番号219の2,3,5,8,及び10番目のいずれかのアミノ酸残基が置換されたアミノ酸配列を有するペプチド,及び
ペプチドDにおいて,
配列番号219の2番目のアミノ酸残基が,修飾されてもよいバリン(Val), 修飾されてもよいグルタミン酸(Glu), 修飾されてもよいアルギニン(Arg), 修飾されてもよいリジン(Lys), 修飾されてもよいアスパラギン酸(Asp),又は修飾されてもよいフェニルアラニン(Phe)であり,
配列番号219の3番目のアミノ酸残基が,修飾されてもよいフェニルアラニン(Phe)であり,
配列番号219の5番目のアミノ酸残基が,修飾されてもよいトリプトファン(Trp)であり,
配列番号219の8番目のアミノ酸残基が,修飾されてもよいチロシン(Tyr)であり,
配列番号219の10番目のアミノ酸残基が,修飾されてもよいイソロイシン(Ile),修飾されてもよいグルタミン酸(Glu)又は修飾されてもよいリジン(Lys)であるペプチド,
のいずれかであるペプチド。 - 請求項9又は10に記載のペプチドであって,ペプチド長が15以上18以下であるペプチド。
- 請求項1に記載のペプチドであって,
ペプチドEを,配列番号296(Ala-Val-MeF-Val-Trp-Asn-Tyr-Tyr-Ile-Ile-Arg-Arg-Tyr-MeY-Cys--)の1番目~15番目に記載のアミノ酸配列を含む,ペプチド長が15以上18以下のペプチドとすると,
ペプチドE,又は
ペプチドEにおいて,1以上5以下のアミノ酸残基の置換,欠失,及び/又は挿入を有するアミノ酸配列を有するペプチドであるペプチド。 - 請求項11に記載のペプチドであって,
ペプチドEにおいて,配列番号296の3,5,7,8,11,12,13番目のいずれかのアミノ酸残基が置換されたアミノ酸配列を有するペプチド。 - 請求項11に記載のペプチドであって,
ペプチドEにおいて,
配列番号296の3番目のアミノ酸残基が,修飾されてもよいフェニルアラニン(Phe)であり,
配列番号296の5番目のアミノ酸残基が,修飾されてもよいトリプトファン(Trp)であり,
配列番号296の7番目のアミノ酸残基が修飾されてもよいチロシン(Tyr)であり,
配列番号296の8番目のアミノ酸残基が,修飾されてもよいチロシン(Tyr)であり,
配列番号296の11番目のアミノ酸残基が,修飾されてもよいアルギニン(Arg)又は,修飾されてもよいリジン(Lys)であり,
配列番号296の12番目のアミノ酸残基が,修飾されてもよいアルギニン(Arg)又は修飾されてもよいリジン(Lys)であり,
配列番号296の13番目のアミノ酸残基が,修飾されてもよいチロシン(Tyr)又は修飾されてもよいフェニルアラニン(Phe)のいずれかであるペプチド。 - 請求項11に記載のペプチドであって,
ペプチドEにおいて,
配列番号296の3番目のアミノ酸残基が,フェニルアラニン(Phe),メチル化フェニルアラニン(MeF),又はN-α-メチル-N-α-クロロアセチル-3-クロロ-L-フェニルアラニン(MeF3C)であり,
配列番号296の5番目のアミノ酸残基が,トリプトファン(Trp)又はメチル化トリプトファン(MeW)であり,
配列番号296の8番目のアミノ酸残基が,チロシン(Tyr)又は
(S)-2-アミノ-3-(4-メトキシフェニル)プロパン酸(F4OMe)であり,
配列番号296の11番目のアミノ酸残基が,アルギニン(Arg)又はリジン(Lys)であり,
配列番号296の12番目のアミノ酸残基が,アルギニン(Arg)又はD型アルギニン(dr)であり,
配列番号296の13番目のアミノ酸残基が,チロシン(Tyr)又はフェニルアラニン(Phe)であるペプチド。 - 請求項1に記載のペプチドであって,
配列番号3~200のいずれかのアミノ酸配列からなるか,
配列番号3~200のいずれかのアミノ酸配列においてN末端がクロロアセチル-Alaであるアミノ酸配列からなる,ペプチド。 - 請求項1に記載のペプチドであって,
配列番号1~552のいずれかに記載のアミノ酸配列又はアミノ酸配列とリンカーの複合体の、1から10番目のアミノ酸配列を含み,アミノ酸配列部位が環状構造を有する,ペプチド。 - 請求項16に記載のペプチドであって,
配列番号2,9,21~148、159~200、213~448、450~552のいずれかに記載のアミノ酸配列又はアミノ酸配列とリンカーの複合体における、1番目から15番目のアミノ酸配列からなり,アミノ酸配列部位が環状構造を有する,ペプチド。 - 請求項1~16のいずれかに記載のペプチドであって,環状ペプチドである,ペプチド。
- 請求項16又は17に記載のペプチドであって,15アミノ酸残基からなる,ペプチド。
- 請求項1に記載のペプチドであって,血液脳関門を通過可能であるペプチド。
- 請求項1に記載のペプチドであって,筋組織に指向性を有するペプチド。
- 請求項1に記載のペプチドであって,細胞浸透性を有するペプチド。
- 請求項1に記載のペプチドと,前記ペプチドと結合したリンカーと,前記リンカーに結合した物質とを含む複合体。
- 請求項23に記載の複合体であって,前記物質が血液脳関門を通過可能である,複合体。
- 請求項23に記載の複合体であって,前記リンカーのアミノ酸長が1以上15以下であり,前記リンカーがグリシン(Gly)又はセリン(Ser)を1つ以上含む複合体。
- 請求項23に記載の複合体であって,前記リンカーのN末端が修飾されてもよいシステイン(Cys)又は修飾されてもよいリジン(Lys)である,複合体。
- 請求項23に記載の複合体であって,前記リンカーのアミノ酸長が1以上5以下であり,D体のグルタミン酸(de)及びメチル化グリシン(MeG)のいずれか又は両方を含む,複合体。
- 請求項23に記載の複合体であって,前記リンカーのN末端が修飾されてもよいCys又は修飾されてもよいリジン(Lys)である,複合体。
- 請求項23に記載の複合体であって,
前記リンカーが,
ポリエチレングリコール(PEG)又はポリエチレングリコールの誘導体を含むPEGリンカーである,複合体。 - 請求項29に記載の複合体であって,
前記PEGリンカーが,グリシン(Gly),セリン(Ser),グルタミン酸(Glu),アルギニン(Arg),又はリジン(Lys)をさらに含む,
複合体。 - 請求項29又は請求項30に記載の複合体であって,前記リンカーのN末端が修飾されてもよいシステイン(Cys)又は修飾されてもよいリジン(Lys)である,複合体。
- 請求項23に記載の複合体であって,前記リンカーが,配列番号201,553~642のいずれかによって示される配列を有するリンカーである,複合体。
- 請求項22に記載の複合体であって,前記リンカーが,
ポリエチレングリコール(PEG),
Gリンカー,GSリンカー,
又は,配列番号201,553~644のいずれかで示されるアミノ酸配列を有するリンカーである,複合体。 - 請求項23に記載の複合体を含む脳関連疾患の予防又は治療剤であって,
前記物質が,有効成分である,予防又は治療剤。 - 請求項23に記載の複合体を得る工程を含む,脳関連疾患の予防又は治療剤の製造方法。
- 請求項35に記載の方法であって,前記リンカーが,
ポリエチレングリコール(PEG),
Gリンカー,GSリンカー,
又は,配列番号201,553~644のいずれかによって示されるアミノ酸配列を有するリンカーである,方法。 - 請求項23に記載の複合体を含む,脳関連疾患の診断薬。
- 請求項23に記載の複合体であって,筋組織に指向性を有する,複合体。
- 請求項23に記載の複合体を含む神経筋疾患の予防又は治療剤であって,前記物質が,有効成分である,予防又は治療剤。
- 請求項23に記載の複合体を含む神経筋疾患の診断薬。
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021224412A AU2021224412A1 (en) | 2020-02-22 | 2021-02-22 | Human transferrin receptor binding peptide |
| IL295797A IL295797A (en) | 2020-02-22 | 2021-02-22 | Human transfer receptor binding peptide |
| EP21756644.7A EP4108676A4 (en) | 2020-02-22 | 2021-02-22 | HUMAN TRANSFERRIN RECEPTOR BINDING PEPTIDE |
| CN202180015934.0A CN115151556A (zh) | 2020-02-22 | 2021-02-22 | 人转铁蛋白受体结合肽 |
| US17/801,261 US20230203098A1 (en) | 2020-02-22 | 2021-02-22 | Human transferrin receptor binding peptide |
| JP2022501104A JP7796636B2 (ja) | 2020-02-22 | 2021-02-22 | ヒトトランスフェリンレセプター結合ペプチド |
| CA3171988A CA3171988A1 (en) | 2020-02-22 | 2021-02-22 | Human transferrin receptor binding peptide |
| JP2025197068A JP2026032056A (ja) | 2020-02-22 | 2025-11-17 | ヒトトランスフェリンレセプター結合ペプチド |
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| JP2020-028879 | 2020-02-22 | ||
| JP2020028879 | 2020-02-22 |
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| WO2021167107A1 true WO2021167107A1 (ja) | 2021-08-26 |
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| PCT/JP2021/006709 Ceased WO2021167107A1 (ja) | 2020-02-22 | 2021-02-22 | ヒトトランスフェリンレセプター結合ペプチド |
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| Country | Link |
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| US (1) | US20230203098A1 (ja) |
| EP (1) | EP4108676A4 (ja) |
| JP (2) | JP7796636B2 (ja) |
| CN (1) | CN115151556A (ja) |
| AU (1) | AU2021224412A1 (ja) |
| CA (1) | CA3171988A1 (ja) |
| IL (1) | IL295797A (ja) |
| TW (1) | TW202140513A (ja) |
| WO (1) | WO2021167107A1 (ja) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023022234A1 (ja) * | 2021-08-19 | 2023-02-23 | ペプチドリーム株式会社 | ヒトトランスフェリンレセプター結合ペプチド |
| WO2023027125A1 (ja) | 2021-08-24 | 2023-03-02 | ペプチドリーム株式会社 | ヒトトランスフェリンレセプター結合抗体-ペプチドコンジュゲート |
| WO2023026994A1 (ja) * | 2021-08-21 | 2023-03-02 | 武田薬品工業株式会社 | ヒトトランスフェリンレセプター結合ペプチド-薬物コンジュゲート |
| WO2024043341A1 (ja) | 2022-08-26 | 2024-02-29 | ペプチドリーム株式会社 | シクロアルキン誘導体 |
| WO2024172166A1 (ja) * | 2023-02-17 | 2024-08-22 | Jcrファーマ株式会社 | ヒトトランスフェリンレセプター結合ペプチド |
| WO2024195710A1 (ja) * | 2023-03-17 | 2024-09-26 | 富士フイルム株式会社 | 環状ペプチド又はその塩及びそれらの利用 |
| US20240415756A1 (en) * | 2022-02-16 | 2024-12-19 | Lipotrue, S.L. | Peptides and compositions for use in cosmetics |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4626906A1 (en) * | 2022-11-29 | 2025-10-08 | Vacino Biotech Co., Ltd. | Transporter peptides and application thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH048770B2 (ja) | 1984-01-12 | 1992-02-18 | ||
| JPH06228199A (ja) | 1992-11-27 | 1994-08-16 | Takeda Chem Ind Ltd | 血液脳関門通過可能なペプチド結合体 |
| US5525491A (en) | 1991-02-27 | 1996-06-11 | Creative Biomolecules, Inc. | Serine-rich peptide linkers |
| WO2007066627A1 (ja) | 2005-12-06 | 2007-06-14 | The University Of Tokyo | 多目的アシル化触媒とその用途 |
| US7271149B2 (en) | 2000-12-07 | 2007-09-18 | Eli Lilly And Company | GLP-1 fusion proteins |
| WO2012033154A1 (ja) | 2010-09-09 | 2012-03-15 | 国立大学法人 東京大学 | N-メチルアミノ酸およびその他の特殊アミノ酸を含む特殊ペプチド化合物ライブラリーの翻訳構築と活性種探索法 |
| WO2014119600A1 (ja) | 2013-01-30 | 2014-08-07 | ペプチドリーム株式会社 | Flexible Display法 |
| JP2015528452A (ja) | 2012-08-29 | 2015-09-28 | エフ.ホフマン−ラ ロシュ アーゲーF. Hoffmann−La Roche Aktiengesellschaft | 血液脳関門シャトル |
| WO2016208695A1 (ja) | 2015-06-24 | 2016-12-29 | Jcrファーマ株式会社 | 血液脳関門を通過する抗ヒトトランスフェリン受容体抗体 |
| JP6478632B2 (ja) | 2011-05-05 | 2019-03-06 | サレプタ セラピューティクス, インコーポレイテッド | ペプチドオリゴヌクレオチドコンジュゲート |
| WO2019151539A1 (ja) | 2018-02-05 | 2019-08-08 | Jcrファーマ株式会社 | 薬剤を筋肉に送達するための方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU656230B2 (en) * | 1991-10-11 | 1995-01-27 | F. Hoffmann-La Roche Ag | Cyclic vasoactive peptides |
| US20090087878A9 (en) * | 1999-05-06 | 2009-04-02 | La Rosa Thomas J | Nucleic acid molecules associated with plants |
| BRPI1014253A2 (pt) * | 2009-07-02 | 2016-04-12 | Merz Pharma Gmbh & Co Kgaa | polinucleotídeo codificado um polipeptídeo de neurotoxina, vetor, célula hospedeira, anticorpo, uso de um polinucleotídeo, método para a fabricação de um polipeptídeo de neurotoxina e método para a fabricação de um medicamento |
| JP5986931B2 (ja) * | 2011-02-02 | 2016-09-06 | 公益財団法人微生物化学研究会 | 血液脳関門を透過する薬物輸送体、ペプチド及びその用途 |
| WO2013141965A1 (en) * | 2012-03-21 | 2013-09-26 | Baxter International Inc. | Tfpi inhibitors and methods of use |
| CN103254280A (zh) * | 2013-03-07 | 2013-08-21 | 广州暨南大学医药生物技术研究开发中心 | 具有肿瘤细胞靶向结合能力的短肽及其应用 |
| AU2017385274B2 (en) * | 2016-12-26 | 2024-02-22 | Jcr Pharmaceuticals Co., Ltd. | Fusion protein including BDNF |
-
2021
- 2021-02-22 CA CA3171988A patent/CA3171988A1/en active Pending
- 2021-02-22 AU AU2021224412A patent/AU2021224412A1/en active Pending
- 2021-02-22 TW TW110106195A patent/TW202140513A/zh unknown
- 2021-02-22 EP EP21756644.7A patent/EP4108676A4/en active Pending
- 2021-02-22 IL IL295797A patent/IL295797A/en unknown
- 2021-02-22 CN CN202180015934.0A patent/CN115151556A/zh active Pending
- 2021-02-22 JP JP2022501104A patent/JP7796636B2/ja active Active
- 2021-02-22 WO PCT/JP2021/006709 patent/WO2021167107A1/ja not_active Ceased
- 2021-02-22 US US17/801,261 patent/US20230203098A1/en active Pending
-
2025
- 2025-11-17 JP JP2025197068A patent/JP2026032056A/ja active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH048770B2 (ja) | 1984-01-12 | 1992-02-18 | ||
| US5525491A (en) | 1991-02-27 | 1996-06-11 | Creative Biomolecules, Inc. | Serine-rich peptide linkers |
| JPH06228199A (ja) | 1992-11-27 | 1994-08-16 | Takeda Chem Ind Ltd | 血液脳関門通過可能なペプチド結合体 |
| US7271149B2 (en) | 2000-12-07 | 2007-09-18 | Eli Lilly And Company | GLP-1 fusion proteins |
| WO2007066627A1 (ja) | 2005-12-06 | 2007-06-14 | The University Of Tokyo | 多目的アシル化触媒とその用途 |
| WO2012033154A1 (ja) | 2010-09-09 | 2012-03-15 | 国立大学法人 東京大学 | N-メチルアミノ酸およびその他の特殊アミノ酸を含む特殊ペプチド化合物ライブラリーの翻訳構築と活性種探索法 |
| JP6478632B2 (ja) | 2011-05-05 | 2019-03-06 | サレプタ セラピューティクス, インコーポレイテッド | ペプチドオリゴヌクレオチドコンジュゲート |
| JP2015528452A (ja) | 2012-08-29 | 2015-09-28 | エフ.ホフマン−ラ ロシュ アーゲーF. Hoffmann−La Roche Aktiengesellschaft | 血液脳関門シャトル |
| WO2014119600A1 (ja) | 2013-01-30 | 2014-08-07 | ペプチドリーム株式会社 | Flexible Display法 |
| WO2016208695A1 (ja) | 2015-06-24 | 2016-12-29 | Jcrファーマ株式会社 | 血液脳関門を通過する抗ヒトトランスフェリン受容体抗体 |
| WO2019151539A1 (ja) | 2018-02-05 | 2019-08-08 | Jcrファーマ株式会社 | 薬剤を筋肉に送達するための方法 |
Non-Patent Citations (14)
| Title |
|---|
| CAS , no. 1380327-68-3 |
| CAS, no. 179385-30-9 |
| D. CHANDRA ; P. KARANDE: "Transferrin mediated drug delivery to brain", BIOENGINEERING CONFERENCE (NEBEC), 2011 IEEE 37TH ANNUAL NORTHEAST, IEEE, 1 April 2011 (2011-04-01), pages 1 - 2, XP031873762, ISBN: 978-1-61284-827-3, DOI: 10.1109/NEBC.2011.5778697 * |
| G. B. FIELDSR. L. NOBLE: "Int. J. Peptide Protein Res.", vol. 35, 1990, article "Solid phase Peptide Synthesis Utilizing 9-Fluorenylmethoxycarbonyl Amino Acids", pages: 161 - 214 |
| H. MURAKAMI, D. KOUROUKLIS, H. SUGA, CHEMISTRY & BIOLOGY, vol. 10, 2003, pages 1077 - 1084 |
| H. MURAKAMIA. OHTAH. ASHIGAIH. SUGA, NATURE METHODS, vol. 3, 2006, pages 357 - 359 |
| K. J. JENSENP. T. SHELTONS. L. PEDERSEN: "Peptide Synthesis and Applications", 2013, SPRINGER |
| L. LEHNINGER: "Biochemistry", 1975, WORTH PUBLISHER, pages: 73 - 75 |
| N. NIWAY. YAMAGISHIH. MURAKAMIH. SUGA: "The flexizyme system: a highly flexible tRNA aminoacylation tool for the synthesis of nonnatural peptides", BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, vol. 19, 2009, pages 3892 - 3894 |
| SANTI MELISSA, MACCARI GIUSEPPE, MEREGHETTI PAOLO, VOLIANI VALERIO, ROCCHICCIOLI SILVIA, UCCIFERRI NADIA, LUIN STEFANO, SIGNORE GI: "Rational Design of a Transferrin-Binding Peptide Sequence Tailored to Targeted Nanoparticle Internalization", BIOCONJUGATE CHEMISTRY, AMERICAN CHEMICAL SOCIETY, US, vol. 28, no. 2, 15 February 2017 (2017-02-15), US , pages 471 - 480, XP055856057, ISSN: 1043-1802, DOI: 10.1021/acs.bioconjchem.6b00611 * |
| See also references of EP4108676A4 |
| TEIXEIRAW. E. BENCKHUIJSENP. E. DE KONINGA. R. P. M. VALENTIJNJ. W. DRIJFHOUT, PROTEIN PEPT. LETT., vol. 9, 2002, pages 379 - 385 |
| Y. GOTO ET AL., ACSS CHEM. BIOL., vol. 3, 2008, pages 120 - 129 |
| ZHANG YUE, ZHAI MEIFANG, CHEN ZHIJIANG, HAN XIAOYANG, YU FANGLIN, LI ZHIPING, XIE XIANGYANG, HAN CUIYAN, YU LIAN, YANG YANG, MEI X: "Dual-modified liposome codelivery of doxorubicin and vincristine improve targeting and therapeutic efficacy of glioma", DRUG DELIVERY, ACADEMIC PRESS, ORLANDO, FL., US, vol. 24, no. 1, 1 January 2017 (2017-01-01), US , pages 1045 - 1055, XP055856056, ISSN: 1071-7544, DOI: 10.1080/10717544.2017.1344334 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023022234A1 (ja) * | 2021-08-19 | 2023-02-23 | ペプチドリーム株式会社 | ヒトトランスフェリンレセプター結合ペプチド |
| WO2023026994A1 (ja) * | 2021-08-21 | 2023-03-02 | 武田薬品工業株式会社 | ヒトトランスフェリンレセプター結合ペプチド-薬物コンジュゲート |
| WO2023027125A1 (ja) | 2021-08-24 | 2023-03-02 | ペプチドリーム株式会社 | ヒトトランスフェリンレセプター結合抗体-ペプチドコンジュゲート |
| US20240415756A1 (en) * | 2022-02-16 | 2024-12-19 | Lipotrue, S.L. | Peptides and compositions for use in cosmetics |
| WO2024043341A1 (ja) | 2022-08-26 | 2024-02-29 | ペプチドリーム株式会社 | シクロアルキン誘導体 |
| WO2024172166A1 (ja) * | 2023-02-17 | 2024-08-22 | Jcrファーマ株式会社 | ヒトトランスフェリンレセプター結合ペプチド |
| WO2024195710A1 (ja) * | 2023-03-17 | 2024-09-26 | 富士フイルム株式会社 | 環状ペプチド又はその塩及びそれらの利用 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20230203098A1 (en) | 2023-06-29 |
| JP2026032056A (ja) | 2026-02-25 |
| JP7796636B2 (ja) | 2026-01-09 |
| JPWO2021167107A1 (ja) | 2021-08-26 |
| EP4108676A4 (en) | 2024-06-05 |
| IL295797A (en) | 2022-10-01 |
| EP4108676A1 (en) | 2022-12-28 |
| AU2021224412A1 (en) | 2022-09-15 |
| CA3171988A1 (en) | 2021-08-26 |
| TW202140513A (zh) | 2021-11-01 |
| CN115151556A (zh) | 2022-10-04 |
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