WO2019132738A1 - Моноклональные антитела и способы их применения - Google Patents
Моноклональные антитела и способы их применения Download PDFInfo
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- C07K16/28—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
- C07K16/2803—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against the immunoglobulin superfamily
- C07K16/2809—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against the immunoglobulin superfamily against the T-cell receptor (TcR)-CD3 complex
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- C07K2317/92—Affinity (KD), association rate (Ka), dissociation rate (Kd) or EC50 value
Definitions
- the invention relates to the field of biotechnology and biomedicine, namely to antibodies or their antigen-binding fragments, as well as their application. More specifically, the present invention relates to monoclonal antibodies that specifically bind to the family of human T-cell receptors.
- the invention also relates to a nucleic acid encoding a given antibody or antigen-binding fragment thereof, an expression vector, a method for producing an antibody, and the use of an antibody for treating diseases or disorders associated with the human T-cell receptor family.
- ankylosing spondylitis ankylosing spondylitis
- monoclonal antibodies an effective drug has not yet been obtained that allows selectively and long-term suppression of the autoimmune response and stopping the progression of AS.
- an urgent task is the creation of antibodies, which allow to remove autoreactive T-lymphocyte clones from the patient’s AS, which are associated with the development of the disease.
- TCR antigen recognition T-cell receptor
- MHC main histocompatibility complex
- One of the possible mechanisms for the occurrence of an autoimmune reaction is the presentation by the histocompatibility complex complex of peptides from proteins of bacterial or viral origin homologous to the body’s own peptides, which can lead to an immune response against its own antigens due to cross-reactivity.
- TCR T cell sequence. receptor
- variable (V) gene segments that make up the variable domain of TCR
- the T-cell receptors are divided into different families. According to the IMGT nomenclature, 26 different families are distinguished for the beta chain, and 41 families for the alpha chain (Turner SJ et al., Nature Reviews Immunology 2006, V.6, 883-894).
- TKRs belong to the TRBV9 family (according to the IMGT nomenclature).
- T cell receptors carrying the beta chains of the TRBV9 family are also involved in the development of such an autoimmune disease as pillars (Petersen J et al., J Immunol. 2015; 194 (12): 6112-22). They are also found on the surface of T cells, which are subject to glueing in the case of T-cell lymphomas and T-cell leukemias, including T-cell lymphoma caused by the Epstein-Barr virus (EBV) (Toyabe S et al., Clin Exp Immunol. 2003; 134 (1): 92-97).
- EBV Epstein-Barr virus
- the closest analogues of the present invention are the monoclonal antibodies W112 and 2D1 to the beta segments of the human variable T-receptor domains belonging to the TRBV5-3 TRBV8-1 families, which were described in patent application (W09006758) as a tool for the diagnosis and therapy of rheumatoid arthritis .
- These monoclonal antibodies recognize, respectively, 0.3-5% of peripheral T lymphocytes carrying TRBV5-3 and 0.5-13% of peripheral T lymphocytes carrying TRBV8-1.
- the basis for the use of monoclonal antibodies specific to the sites of the beta chains of T receptors was the results of many studies demonstrating the involvement of T lymphocytes in the pathogenesis of rheumatoid arthritis.
- Monoclonal antibodies specifically recognizing the beta chain of the 13th family of TRK rats are also described.
- VB13 + T cells Monoclonal antibodies specifically recognizing the beta chain of the 13th family of TRK rats.
- this procedure has been shown to protect against the development of type I diabetes in rats of the predisposed line, and also significantly reduces the risk of developing virus-induced diabetes (Zhijun Liu et al, Diabetes. 2012 May; 61 (5): 1160-1168.).
- the depletion of T cells, whose T-receptor contains another family of beta chains (VB16) does not differ in the result from the control groups. It is important to note that already the first injection of monoclonal antibodies against VB13 leads to a 60% reduction in the number of VB13 + T cells in the spleen of rats.
- the invention is directed to the creation of antibodies that can be used for the elimination of T cells bearing the TCR family of the TRBV9 family, in particular, for the treatment of AS, celiac disease and malignant blood diseases, in the pathogenesis of which TCR family of the TRBV9 family are involved.
- the present invention relates to monoclonal antibodies and their antigen-binding fragments, which have the ability to specifically bind to the beta region of the human TRBV9 T family.
- Antibodies according to the invention can be used as a drug for the treatment of autoimmune and oncological diseases, in the pathogenesis of which TCRs are involved, belonging to the TRBV9 family, for example, the AU, celiac disease and some T-cell lymphomas and T-cell leukemias.
- VH variable domain contains 3 hypervariable regions HCDR1, HCDR2 and HCDR3, where
- HCDR 1 (according to Rabat nomenclature) has the amino acid sequence of SEQ ID NO: 1,
- HCDR 2 has the amino acid sequence of SEQ ID NO: 2
- HCDR 3 has an amino acid sequence selected from the group of SEQ ID NO: 3, SEQ ID No 4, SEQ ID No 5, SEQ ID No 6;
- variable domain of their light chain contains 3 hypervariable regions LCDR1, LCDR2 and LCDR3, in which:
- LCDR 1 has the amino acid sequence of SEQ ID NO: 7,
- LCDR 2 has the amino acid sequence of SEQ ID NO: 8,
- LCDR 3 has the amino acid sequence of SEQ ID NO: 9.
- Antibodies according to the invention can be chimeric, humanized or human antibodies.
- the antibodies of the present invention contain human-specific constant regions and structural components, but have a variable domain characteristic of a rat.
- variable domain of the light chain of the antibody has the amino acid sequence of SEQ ID No: 11
- variable domain of the heavy chain of an antibody of the present invention has an amino acid sequence selected from the group of SEQ ID No: 13, SEQ ID No: 15, SEQ ID No: 17, SEQ ID No: 19.
- amino acid sequence of the variable domain of the light chain of which is essentially similar (for example, identical, at least 90%) with the sequence shown in SEQ ID No: 11.
- the amino acid sequence of the variable domain of the heavy chain is essentially similar (for example, identical to at least 90%) with a sequence selected from the group SEQ ID No: 13, SEQ ID No: 15, SEQ ID No: 17, SEQ ID No: 19.
- the antibody according to the invention includes a light chain, the amino acid sequence of which is essentially similar to SEQ ID NO: 29, and the heavy chain, the amino acid sequence of which is essentially similar to the sequence selected from the group SEQ ID No: 21, SEQ ID No: 23 , SEQ ID No: 25, SEQ ID No: 27.
- the monoclonal bodies of the invention are full-length human IgG antibodies, for example, IgGl or IgG2 or IgG3 or IgG4.
- nucleic acids that encode the variable domains of the heavy and light chains of an antibody of the invention, nucleic acids encoding the heavy and light chains of antibodies of the invention, and functional antibody fragments.
- expression cassettes and expression vectors comprising the nucleic acid of the present invention and the regulatory elements necessary for the expression of the nucleic acid in the selected host cell.
- the expression vector or cassette may be located in the host cell as an extrachromosomal element or integrated into the cell genome as a result of the introduction (by transfection) of the said expression cassette or vector into the cell.
- cells and stable cell lines, including nucleic acids, vectors or expression cassettes of the present invention, and methods for their preparation are provided.
- the method includes the subsequent isolation and purification of the resulting antibody.
- a pharmaceutical composition is also provided for the prevention or treatment of a disease or disorder mediated by the beta section of the human TRBV9 T family of the receptor, containing the above antibody or antigen-binding fragment thereof, in combination with one or more pharmaceutically acceptable excipients.
- the pharmaceutical composition is intended for the prevention or treatment of a disease or disorder selected from the group: ankylosing spondylitis, celiac disease, T-cell leukemia, T-cell lymphoma.
- a pharmaceutical combination is also provided for preventing or treating a disease or disorder mediated by a human T-cell receptor, carrying the beta chain of the TRBV9 family, containing the aforementioned antibody or antigen-binding fragment thereof and at least one other therapeutically active compound.
- the pharmaceutical combination is designed to prevent or treat a disease or disorder selected from the group: ankylosing spondylitis, celiac disease, T-cell leukemia, T-cell lymphoma.
- the pharmaceutical combination includes another therapeutically active compound that is selected from a small molecule, an antibody, or steroid hormones, such as corticosteroids.
- another therapeutically active compound that is selected from a small molecule, an antibody, or steroid hormones, such as corticosteroids.
- a method of inhibiting the biological activity of a T-cell receptor, the beta chain of which belongs to the TRBV9 family, in a subject in need of such inhibition comprising administering to the subject an effective amount of the above antibody or its antigen-binding fragment.
- a method of treating a disease or disorder mediated by a human T-cell receptor carrying a beta chain of the TRBV9 family comprising administering to the subject in need of such treatment the above antibody or its antigen-binding fragment or the above pharmaceutical composition in a therapeutically effective amount.
- the disease or disorder is selected from the group: ankylosing spondylitis, celiac disease, T-cell leukemia, T-cell lymphoma.
- the disease is selected from the group: ankylosing spondylitis, celiac disease, T-cell leukemia, T-cell lymphoma.
- the technical result of the present invention is to obtain new antibodies that specifically bind to TCR, the beta chain of which belongs to the TRBV9 family and can be used for the treatment of autoimmune and oncological diseases whose pathogenesis involves TCR, the beta chain of which belongs to the TRBV9 family. Also, the technical result consists in increasing the effectiveness of therapy for AS and / or celiac disease, which is provided by the production of antibodies capable of to act directly on autoimmune T-lymphocytes, and to be able to achieve long-term remission in AS.
- Figures 1-4 show two-parameter histograms of the distribution of cells of the mononuclear blood fraction using monoclonal antibodies against CD3 (ordinate axis) labeled with eFluor 405 and monoclonal antibodies against TRBV9 (abscissa axis) labeled with FITC: anti- TRBV9-1 ( Figure 1) , aHTH-TRBV9-2 (FIG. 2), aHTH-TRBV9-3 (FIG. 3), anti-TRBV9-4 (FIG. 4).
- Each variant of monoclonal antibodies against TRBV9 was used in two concentrations of 270 ng (upper graph) or 27 ng (lower graph) per test.
- the specific CD3 + population of TRBV9 + is indicated by a small rectangle.
- Figure 5 shows two-parameter histograms of the distribution of cells of the mononuclear blood fraction using monoclonal antibodies against CD3 (ordinate axis) labeled with eFluor 405, and monoclonal antibodies against TRBV9 (abscissa axis) labeled with FITC, after the cytotoxic test: incubation with aHTH-TRBV9 2 experience) and remikade (control).
- the present invention relates to isolated monoclonal antibodies and their functional fragments, which have the ability to specifically bind to the beta site of the human TRBV9 T family. Also provided are nucleic acids encoding antibodies and fragments thereof according to the invention, expression cassettes and expression vectors comprising the nucleic acid of the present invention and the regulatory elements necessary for the expression of the nucleic acid in the selected host cell. Besides, cells and stable cell lines are provided, including nucleic acids, vectors or expression cassettes of the present invention.
- T-cell receptor also referred to as “TRK”, “T-receptor” or “TCR”
- TRK T-receptor
- TCR is a heterodimeric protein complex located on the surface of a T lymphocyte. This receptor is present only on T lymphocytes.
- the main function of TCR is the specific recognition of processed antigens associated with molecules of the major histocompatibility complex (HLA).
- HLA major histocompatibility complex
- Human TKR consists of two subunits, a and b, or g and d chains connected by a disulfide bond and fixed in the cell membrane.
- Each TCR chain has an N-terminal variable (V) domain, a connecting domain, and a constant (C) domain connected to transmembrane domain, fixing the receptor in the plasma membrane of T-lymphocyte.
- the length of the constant domain alpha and beta chains is 91 and 129 amino acid residues, respectively.
- the length of the connecting and transmembrane domain of the alpha chain is 30 and 17 amino acid residues (ao), while in the beta chain it is 21 and 22 aa.
- the length of the variable domains of T-receptors varies from 104 to 125 amino acid residues.
- T-lymphocytes A small fraction of T-lymphocytes has g / d receptors. They are similar in structure to a / b receptors, but differ in their primary structure and have a number of functional features. Their variability is much lower (limited clon specificity), they recognize antigens in combination with “non-classical” (not MHC) antigen-presenting molecules, or even free antigens.
- the T-receptor interacts with the MHC-antigen complex in six regions that determine its complementarity (CDR): three regions of the alpha chain and three beta chains. These CDRs are hypervariable regions, the loops of the variable domains of the T-cell receptor are Walf and Ubet.
- TRBV9 or "TRBV9 family” refer to the ninth family of beta chains of T-cell receptors, allocated according to the IMGT nomenclature, which is characterized by the fact that the amino acid sequence of their variable domain includes unique motifs CDR1 (sequence of amino acids - SGDLS) and CDR2 (sequence Amino Acids - YYNGEE).
- TCR of the TRBV9 family means a T-cell receptor, the beta chain of which belongs to the TRBV9 family.
- T-lymphocytes or TCR means that a given TCR or T-lymphocyte carrying it is associated with a disease or pathology and / or causes the disease and / or contributes to the development of the disease.
- autoimmune in relation to TCR means that the TCR is involved in the development of an autoimmune disease.
- antibody is intended to identify an immunoglobulin molecule consisting of four polypeptide chains (two heavy (H) chains and two light (L) chains) linked by disulfide bonds.
- Light chains are classified as kappa or lambda.
- Heavy chains are classified as gamma, mu, alpha, delta or epsilon, and they define the isotype of an antibody, such as IgG, IgM, IgA, IgD and IgE, respectively, and several of them can be further divided into subclasses (isotypes), for example, IgGl, IgG2, IgG3, IgG4, IgAl and IgA2.
- Each type of heavy chain is characterized by a specific constant region.
- Each heavy chain contains a heavy chain variable region (abbreviated here as HCVR or VH) and a heavy chain constant region.
- the heavy chain constant region contains three domains CHI, CH2 and CH3.
- Each light chain contains a light chain variable region (abbreviated here as LCVR or VL) and a light chain constant region.
- the light chain constant region contains one domain CL.
- the VH and VL segments can be further subdivided into hypervariability regions, called complementarity determining regions (CDRs), surrounded by regions that are more conservative, called skeletal regions (FR).
- CDRs complementarity determining regions
- FR skeletal regions
- Each of the VH and VL consists of three CDRs and four FR sections, located from the amino to carboxyl terminus in the following order: FR1, CDR1, FR2, CDR2, FR3, CDR3, FR4.
- CDRH1, CDRH2, and CDRH3 3 CDRs of the heavy chains are designated as “CDRH1, CDRH2, and CDRH3”
- 3 CDRs of the light chain are designated as “CDRF1, CDRF2, and CDRF3”.
- CDRs contain most of the residues that form specific interactions with the antigen.
- the numbering and positioning of CDR-amino acid residues within the HCVR and FCVR regions of the antibodies according to the invention is carried out with well-known Kabat nomenclature, unless otherwise noted. In this application is used, unless otherwise indicated, generally accepted letter symbols of amino acids.
- anti-TRBV9 antibody refers to an antibody, which specifically binds to the epitope of the beta chain of the TRBV9 family of the human T-cell receptor.
- antibody and “monoclonal antibody” for the purposes of this application refer to a monoclonal antibody against TCR of the TRBV9 family.
- monoclonal antibody refers to a rodent, primate, or Camelidae, preferably a mouse, macaque, camel, or llama, chimeric antibody, humanized antibody, or fully human antibody, unless otherwise indicated.
- variable regions of each of the light / heavy chain pairs form the antigen-binding sites of the antibody.
- the “antigen-binding portion” or “antigen-binding region”, or “antigen-binding domain” or “antigen-binding center” refers, interchangeably, to that portion of an antibody molecule that contains amino acid residues that interact with the antigen and give the antibody its specificity and affinity for the antigen. This part of the antibody includes the "frame" amino acid residues necessary to maintain proper conformation of antigen-binding residues.
- human antibody means an antibody in which the variable and constant domain sequences are derived from human sequences.
- Human antibodies according to the invention may include residues amino acids that are uncharacteristic for humans (for example, mutations introduced by omnidirectional or site-specific mutagenesis in vitro or somatic mutation in vivo), for example, in the CDR and especially in CDR3.
- humanized in relation to antibodies is used to refer to antibodies that are characterized by the presence of human-specific constant regions and structural components, but have areas of complementarity (CDR) that are characteristic of immunoglobulins of other origin or corresponding fragments of modified antibodies.
- CDR complementarity
- chimeric in relation to the antibodies of the present invention is used to refer to antibodies that are characterized by the presence of constant regions characteristic of humans, but have variable domains of a different origin.
- variable domains of light and / or heavy chains that are of nonhuman origin are operatively linked to the constant domains of the corresponding chains of human origin.
- operably linked refers to polypeptide sequences that are in physical (covalent, unless otherwise indicated) and functional relationship with one another. In the most preferred embodiments, the functions of the polypeptide components of the chimeric molecule are not altered compared with the functional properties of the isolated polypeptide components.
- operably linked or similar to it when describing nucleic acids means that the nucleic acids are covalently linked in such a way that there are no “binding” reading frames and stop codons in the places of their connection.
- nucleotide sequences encoding a chimeric protein including "operatively linked” components (proteins, polypeptides, linker sequences, protein domains, etc.) consist of fragments encoding these components, where these fragments are covalently linked in such a way that during translation and transcription of the nucleotide sequence is produced by a full-length chimeric protein, for example, a chimeric antibody according to the invention.
- isolated and “isolated” mean a molecule or cell that is in a medium other than the medium in which the molecule or cell is in vivo.
- antibodies of the present invention are recombinant, that is, obtained using recombinant DNA techniques.
- recombinant antibody includes all antibodies that are obtained, expressed, created or isolated by recombinant means, such as antibodies expressed using a recombinant expression vector introduced into a host cell, antibodies isolated from a set of known recombinant human combinatorial antibodies, antibodies isolated from an animal that is transgenic to the human immunoglobulin genes (see, for example, Taylor LD et al. (1992) Nucl. Acids Res. 20: 6287-6295).
- recombinant human antibodies are subjected to mutagenesis in vitro (or, if you use an animal transgenic for human lg sequences, somatic mutagenesis in vivo) and, thus, the amino acid sequences of the VH and VL regions of the recombinant antibodies are sequences that isolated from human germline VH and VL sequences and close to them; they cannot exist in vivo in human embryonic antibody set in vivo under natural conditions.
- the antigen-binding domain of an antibody of the invention is specific for a particular epitope that is carried by a number of antigens, in which case the specific antibody having the antigen-binding domain will be capable of specifically binding different antigens carrying the epitope.
- the monoclonal antibody of the invention specifically binds an epitope of the beta T chain of a human cell receptor belonging to the TRBV9 family, while it does not specifically bind the TCR beta chain of other families and the TCR alpha chain.
- epitope refers to that portion of the molecule that is able to be recognized and bound to an antibody in one or more antigen-binding sites of an antibody. Epitopes often consist of chemically active surface groups of molecules, such as amino acids or sugar side chains, and have specific three-dimensional structural characteristics, as well as specific charge characteristics.
- epitope also refers to the part of the polypeptide that has antigenic and / or immunogenic activity in an animal, preferably a mammal, for example, a mouse, rat or human.
- antigenic epitope as used in this application, is defined as part of a polypeptide with which an antibody can specifically bind, determined by any method well known in the art, for example, by conventional immune assay. Antigenic epitopes need not be immunogenic, but may also be immunogenic. "Immunogenic epitope ", as used in this application, is defined as part of the polypeptide that causes the antibody response in an animal, as established by any method known from the prior art.
- a “non-linear epitope” or “conformational epitope” contains non-adjacent polypeptides (or amino acids) within the antigenic protein with which an antibody specific for the epitope binds.
- biological property or “biological characteristic” or the terms “activity” or “bioactivity with respect to an antibody and its functional fragments according to the invention are used interchangeably in this application and include, but are not limited to, epitope / antigenic affinity and specificity, ability inhibit or antagonize TCR activity, which includes a beta chain belonging to the TRBV9 family.
- the remaining biological properties or characteristics of the antibody identified in the prior art include, for example, cross-reactivity (i.e., non-human homologues of the target peptide or other proteins or targets in general) and the ability to maintain high levels of protein expression in mammalian cells.
- cross-reactivity i.e., non-human homologues of the target peptide or other proteins or targets in general
- the above properties or characteristics may be monitored, measured, or evaluated using techniques recognized in the art, including, but not limited to, ELISA, competitive ELISA, BIACORE, or KINEXA surface plasmon resonance analysis, in vitro or in vivo inhibition assays restrictions, receptor binding, production and / or secretion of cytokine or growth factor, signal transduction and immunohistochemistry of tissue sections obtained from various sources, including human, primate or Juba another source.
- inhibitor or “neutralize”, as used in this application, in relation to the activity of the antibodies of the invention, means the ability to largely resist, inhibit, prevent, limit, slow down, interrupt, destroy, stop, reduce, for example, development or the severity of what is inhibited, including, but not limited to, the biological activity of the antibody or property, disease, or condition.
- mutant refers to an antibody disclosed in the present invention in which one or more amino acids are added and / or substituted and / or deleted (deleted) and / or inserted (inserted) into the N-terminus. and / or the C-terminus, and / or within the native amino acid sequences of the antibodies of the present invention or fragments thereof.
- mutant also refers to a nucleic acid molecule that encodes a mutant protein.
- mutant refers to any variant that is shorter or longer than a protein or nucleic acid.
- homology is used to describe the relationship of nucleotide or amino acid sequences with other nucleotide or amino acid sequences, which is determined by the degree of identity and / or similarity between the indicated compared sequences.
- amino acid or nucleotide sequences are “substantially similar” or “substantially the same” as the reference sequence if the amino acid or nucleotide sequences have at least 70% identity with the specified sequence within the region chosen for comparison.
- essentially similar sequences include those that have, for example, at least 75% identity, for example, at least at least 80% identity, at least 85% identity, at least 90% identity (eg, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98% , 98% or 99% identity).
- Two sequences that are identical to one another are also essentially similar.
- the identity of the sequences is determined based on the reference sequence.
- Algorithms for sequence analysis are known in the art, such as IgBLAST, described in Ye et al. Nucleic Acids Res. 2013, W34-40.
- IgBLAST a comparison of nucleotide and amino acid sequences produced by the IgBLAST software package provided by the National Center for Biotechnology Information (https://www.ncbi.nlm.nih) can be used to determine the level of identity and similarity between nucleotide sequences and amino acid sequences. .gov / igblast /) using an alignment-containing gap with standard parameters.
- To calculate the percent identity use the full length of the reference sequence, for example, a variable region.
- nucleotide sequence of a “coding” polypeptide means that the polypeptide is produced from the nucleotide sequence during translation and transcription of mRNA. In this case, both a coding chain identical to mRNA and commonly used in the sequence list, or a complementary chain, which is used as a template for transcription, can be indicated. As is obvious to anyone skilled in the art, the term also includes any degenerate nucleotide sequences encoding the same amino acid sequence.
- the nucleotide sequences encoding the polypeptide include sequences containing Nitrons. Antibodies
- the present invention relates to isolated monoclonal antibodies and their functional fragments, which are capable of specifically binding to the beta region of the human TRBV9 T family.
- variable domain of their heavy chain contains 3 hypervariable regions HCDR1, HCDR2 and HCDR3, where
- variable domain of their heavy chain contains 3 hypervariable regions HCDR1, HCDR2 and HCDR3, where
- HCDR1 has (according to Kabat nomenclature) the amino acid sequence DYLVH (SEQ IN No 1);
- HCDR2 has an amino acid sequence
- HCDR3 has an amino acid sequence selected from the group SWRRGLRGLGFDY (SEQ ID No 3), SWRRGLRGIGFDY (SEQ ID No 4), SWRRGIRGFGFDY (SEQ ID No 5), SWRRGIRGIGFDY (SEQ ID No 6); b) the variable domain of their light chain (VF) contains 3 hypervariable regions FCDR1, FCDR2 and FCDR3, in which:
- FCDR1 has the amino acid sequence KASKSINKYFA (SEQ ID No 7);
- FCDR2 has the amino acid sequence DGSTFQS (SEQ ID No 8);
- FCDR3 has the amino acid sequence QQHNEYPPT (SEQ ID No 9).
- Antibodies according to the invention can be chimeric, humanized or human antibodies, or antigen-binding fragments thereof, and can be used as medicines for the treatment of ankylosing spondylitis and other diseases in the pathogenesis of which TCRs are related to the TRBV9 family, for example celiac disease or T-cell lymphoma.
- the monoclonal antibodies of the invention can be obtained using, for example, hybridoma techniques well known in the art, as well as recombinant technology, phage display technology, synthetic technology, or combinations of such technology or other technology well known in the art.
- the term “monoclonal antibody,” as used herein, refers to an antibody obtained from a single copy or clone, including, for example, any eukaryotic, prokaryotic, or phage clone, and not to a method for its preparation.
- Humanized and chimeric antibodies can be obtained by peptide synthesis or using recombinant DNA techniques as described below in the “Nucleic Acids” section.
- the antibodies of the present invention are chimeric and are characterized by the fact that they have variable domains of light and heavy chains of non-human origin (for example, rat or mouse), and constant domains characteristic of humans.
- the antibodies of the present invention are characterized in that they have the amino acid sequence of the heavy chain variable domain selected from the group of SEQ ID No 13, SEQ ID No 15, SEQ ID No 17, SEQ ID No 19, and the amino acid sequence of the light chain variable domain shown in SEQ ID No. 11.
- the antibody contains a constant region of the heavy chain, such as the constant region IgGl, IgG2, IgGS, IgG4, IgA, IgE, IgM, human IgD.
- the constant region of the heavy chain is the constant region of the human IgGl heavy chain.
- the antibody may contain either a light chain constant region or a kappa constant light region. chains, or lambda constant region of the light chain.
- the antibody contains a kappa constant region of the light chain.
- Examples of the heavy chain amino acid sequences of aHTH-TRBV9-l, aHTH-TRBV9-2, aHTH-TRBV9-3 or affra-TRBV9-4 antibodies of the invention are shown in SEQ ID NO: 21, 23, 25 and 27, respectively.
- An example of the amino acid sequence of the light chain of the antibodies is shown in SEQ ID No: 29.
- the amino acid sequences of the framework regions of the antibody variable domains, or portions thereof are primarily human in origin and, therefore, "humanized antibodies.” This “humanization” is considered to be useful in reducing the immunogenicity of the indicated antibody during therapeutic administration to patients. Certain selected amino acid residues in the framework sites remain rat, and not human.
- the antibodies of the present invention and their anti-binding fragments include the light chain variable domains, the amino acid sequences of which are substantially similar to the amino acid sequence of SEQ ID No 11, for example, at least 90% identical, more often at least 93%. typically, 94% or more (preferably 95% or more, 96% or more; 97% or more, 98% or more, 99% or more or 99.5% or more).
- the antibodies of the present invention and their antigen-binding fragments include heavy chain variable domains, the amino acid sequences of the variable domains of which are substantially similar to the amino acid sequence selected from the group SEQ ID No 15, SEQ ID No 17, SEQ ID No 19.
- they have amino acid a sequence identical to the sequence selected from group SEQ ID No 13, SEQ ID No 15, SEQ ID No 17, SEQ ID No 19, at least by 90%, more often by at least 93%, usually by 94% or more (preferably 95% or more, 96% or more; 97% or more, 98% or more, 99% or more or 99.5% or more).
- the antibody of the present invention includes a heavy chain having an amino acid sequence of at least 90% identical (for example, 93% identical or higher, 94% or higher, 95% or higher, 96% or higher; 97% or higher, 98% or higher, 99% or higher or 99.5% or higher) of a sequence selected from the group SEQ ID No: 21, SEQ ID No: 23, SEQ ID No: 25, SEQ ID No: 27 and a light chain having an amino acid sequence of at least 90% identical (for example, 93% identical or higher, 94% or higher, 95% or higher, 96% or higher; 97% yl above 98% or higher, 99% or higher or 99.5% or more) sequence SEQ ID NO: 29.
- Antibodies of the present invention may also contain additional mutations that do not result in the loss of the ability of an antibody to bind to the beta chain of TCR of the TRBV9 family, but may lead to a decrease in antibody-dependent cell-mediated cytotoxicity or an increase in affinity or other biological properties of antibodies.
- conservative amino acid substitutions can be made to antibody sequences.
- conservative substitution in the context of an application is meant a substitution in which the amino acid residue is replaced with another amino acid residue having a close side chain.
- Families of amino acid residues having similar side chains are defined in the prior art, including basic side chains (for example, lysine, arginine, histidine), acidic side chains (for example, aspartic acid, glutamic acid), uncharged polar side chains (for example, glycine, asparagine, glutamine, serine, threonine, tyrosine, cysteine), non-polar side chains (for example, alanine, valine, leucine, isoleucine, proline, phenylalanine, methionine, tryptophan), b-branched side chains (for example , threonine, valine, isoleucine) and aromatic side chains (for example, tyrosine, phenylalanine, tryptophan, histidine).
- basic side chains for example, lysine, arginine, histidine
- acidic side chains for example, aspartic acid, glutamic acid
- uncharged polar side chains for
- no more than five conservative amino acid substitutions are made in the VL and / or VH domains in the CDR3 domains, more often no more than three conservative substitutions.
- conservative substitutions are not made at the positions of amino acids that are critical for binding the epitope of the beta chain of the TRBV9 family.
- variants (mutants) of the antibodies according to the invention described above can be obtained by peptide synthesis or using recombinant DNA techniques as described below in the section “Nucleic Acids”.
- Antigen-binding antibody fragments of the present invention are also provided.
- binding fragments encompassed by the term "antigen-binding fragment" of an antibody include (a) a Fab fragment, a monovalent fragment consisting of the VL, VH, CL and CH1 domains; (b) F (ab ′) 2 fragment, a bivalent fragment containing two Fab fragments linked by a disulfide bridge in the loop region; (c) an Fd fragment consisting of the VH and CH1 domains; (g) an Fv fragment consisting of the VL and VH domains of one arm of an antibody; (e) a dAb fragment (Ward et al.
- Diabodies are bivalent, bispecific antibodies in which the VH and VL domains are expressed on the same polypeptide chain, but using a linker that is too short to allow the pairing of two domains on the same chain, which causes the domains to pair with the complementary domains of the other chain and create two antigen-binding sites (see, for example, Holliger, P. et al. (1993) Proc. Natl. Acad. Sci. USA 90: 6444-6448; Poljak RJ et al. (1994) Structure 2: 1121- 1123).
- Antibody fragments such as Fab F (ab ') 2
- Fab F (ab ') 2 can be obtained from whole antibodies using accepted methods, such as the decomposition of papain or pepsin, respectively, of whole antibodies.
- antibodies, antibody fragments and immunoadhesion molecules can be obtained using standard recombinant DNA techniques.
- the antibody or antigen-binding fragment thereof may be part of larger immunoadhesion molecules formed by a covalent or non-covalent bond of the antibody or antibody fragment to one or more protein or peptide.
- immunoadhesion molecules include the use of a streptavidin nucleus site to produce a tetrameric scFv molecule (Kipriyanov SM et al. (1995) Human Antibodies and Hybridomas 6: 93-101) and the use of a cysteine residue, a marker peptide and a C-terminal polyhistidine tag to produce bivalent and reduced scFv biomolecules (Kipriyanov SM et al. (1994) Mol. Immunol., 31: 1047-1058).
- Other chemical binding of antibody fragments are also well known in the art.
- the antibodies and their functional fragments according to the invention are in isolated form, that is, this means that the protein is essentially free from the presence of other proteins or other natural biological molecules, such as oligosaccharides, nucleic acids and their fragment, etc., where the term “Substantially free” in this case means that less than 70%, usually less than 60%, and more often less than 50% of said composition containing the isolated protein is another natural biological molecule.
- said proteins are present in substantially the purified form, where the term “substantially purified form” means purity equal to at least 95%, usually equal to at least 97%, and more often equal to at least 99%.
- purification can be carried out by chromatography (for example, ion exchange, affinity, especially affinity for specific antigens — protein A or protein G, and column chromatography of sizes), centrifugation, differential solubility, or any other standard protein purification technique.
- chromatography for example, ion exchange, affinity, especially affinity for specific antigens — protein A or protein G, and column chromatography of sizes
- centrifugation differential solubility
- differential solubility differential solubility
- antibodies according to the technology of the present invention, or fragments thereof may be fused with heterologous polypeptide sequences (eg, a histidine tag) to facilitate purification.
- heterologous polypeptide sequences eg, a histidine tag
- KD dissociation constant
- kd the experimentally calculated dissociation rate constant
- kon the experimentally calculated association rate constant of the antitelo-antigen complex.
- Preferred antibodies are those that bind a human antigen to a KD value of no more than about 1 c 10 7 M; preferably not more than about 1 s 10 8 M; more often no more than approximately 1 x 10 -9 M; more preferably not more than about 1 x 10 -10 M, and most preferably not more than about 1 c 10 11 M, for example, not more than about 1 c 10 12 M.
- Preferred antibodies include aHTH-TRBV9-l, anti-TRBV9-2, aHTH-TRBV9-3 or aHTH-TRBV9-4 antibodies, characterized by the CDR3 sequence and described in detail in the experimental part below.
- Antibodies and fragments thereof that can be used in the present compositions and methods are biologically active antibodies and fragments, i.e., are capable of binding the desired antigenic epitopes and exhibiting a biological effect directly or indirectly.
- Antibodies and their functional fragments according to the invention are capable of specifically binding an epitope (region) of the beta chain of the TRBV9 family.
- TCR activity is inhibited, including the indicated beta chain.
- the inhibition is preferably at least about 20, 30, 40, 50, 60, 70, 80, 90, 95% or higher.
- the implementation of the antibody against the beta chain of the TRBV9 family according to the invention or its fragment can eliminate T-lymphocytes carrying TER, containing the beta chain of the TRBV9 family.
- the implementation of the antibody or its fragment according to the invention can provide at least about 20%, at least about 30%, at least about 40%, at least about 50%, at least about 60%, at least about 70%, at least about 80%, at least about 90%, at least about 95%, or about 100% elimination of T-lymphocytes.
- the present invention provides nucleic acid molecules encoding the heavy and light chains of the antibodies of the present invention, their functional fragments and variable domains, which can be used to produce chimeric antibodies, including the variable domains of the invention, operatively fused to known human constant domains of antibodies.
- the nucleic acid of the invention encodes a heavy chain of an antibody, the variable domain of which contains 3 hypervariable regions HCDR1, HCDR2 and HCDR3, where
- HCDR1 (according to Rabat nomenclature) has the amino acid sequence SEQ IN No 1;
- HCDR2 has the amino acid sequence SEQ IN No 2;
- HCDR3 has an amino acid sequence selected from the group of SEQ ID No 3, SEQ ID No 4, SEQ ID No 5, SEQ ID No 6.
- the nucleic acid of the invention encodes a light chain of an antibody, the variable domain of which contains 3 hypervariable regions LCDR1, LCDR2 and LCDR3, in which:
- LCDR1 has the amino acid sequence of SEQ ID No 7;
- LCDR2 has the amino acid sequence of SEQ ID No 8;
- LCDR3 has the amino acid sequence of SEQ ID No 9.
- nucleic acid molecules encoding the homologues and mutants of these antibody chains, their functional fragments and domains are also within the scope of the present invention.
- the nucleic acid encodes a light chain of an antibody, the variable domain of which contains the amino acid sequence substantially similar to the amino acid sequence of SEQ ID NO: 11; for example, at least 90% identical, more often at least 93%, typically 94% or higher (preferably 95% or higher, 96% or higher; 97% or higher, 98% % or higher, 99% or higher or 99.5% or higher).
- the nucleic acid encodes a heavy chain of an antibody, the variable domain of which contains the amino acid sequence substantially similar to the amino acid sequence selected from the group of SEQ ID No 13, SEQ ID No 15, SEQ ID No 17, SEQ ID No 19; for example, at least 90% identical, more often at least 93%, typically 94% or higher (preferably 95% or higher, 96% or higher; 97% or higher, 98% % or higher, 99% or higher or 99.5% or higher).
- nucleic acids encode a light chain of an antibody containing a variable domain, the amino acid sequence of which is shown in SEQ ID No 11 and a heavy chain of an antibody containing the variable domain, the amino acid sequence of which is selected from the group SEQ ID No 13, SEQ ID No 15, SEQ ID No 17, SEQ ID No 19.
- the nucleic acid encodes the variable domains, the amino acid sequences of which are represented in SEQ ID NO 11,11,15,19, which can be used for operational fusion with nucleic acids encoding the corresponding constant domains of antibodies.
- nucleic acid molecule is a DNA molecule, such as a genomic DNA or a DNA molecule, or an RNA molecule, such as an mRNA molecule.
- the nucleic acid molecule of the present invention is a DNA (or DNA) molecule containing an open reading frame that encodes an antibody or antibody fragment of the present invention and is capable of under suitable conditions (for example, physiological intracellular conditions) to be used for expression in heterologous expression system.
- the nucleic acid molecule of the present invention is genetically engineered.
- Methods for producing nucleic acids are well known in the art. For example, the availability of amino acid sequence information or nucleotide sequence information makes it possible to manufacture isolated nucleic acid molecules of the present invention using oligonucleotide synthesis. In the case of amino acid sequence information, several nucleic acids that differ from each other due to the degeneracy of the genetic code can be synthesized. Methods for selecting codon variants for a desired host are well known in the art.
- Synthetic oligonucleotides can be prepared using the phosphoramidite method, and the resulting constructs can be purified using methods well known in the art, such as high performance liquid chromatography (HPLC) or other methods as described, for example, in Sambrook et al., Molecular Cloning: A Laboratory Manual, 2nd Ed., (1989) Cold Spring Harbor Press, Cold Spring Harbor, NY, and no instructions described in, for example, United States Dept. of HHS, National Institute of Health (NIH) Guidelines for Recombinant DNA Research.
- HPLC high performance liquid chromatography
- the long double-stranded DNA molecules of the present invention can be synthesized as follows: several smaller fragments with the required complementarity, which contain suitable ends capable of cohesion with the adjacent fragment. Adjacent fragments can be crosslinked using DNA ligase or PCR based method.
- nucleic acid molecules of the present invention can also be cloned from biological sources.
- the present invention also encompasses nucleic acids that are homologous, substantially similar, identical, or derived from nucleic acids encoding the polypeptides of the present invention.
- nucleic acids of the invention are in an environment other than the environment in which they are in vivo, for example, they are isolated, are present in increased amounts, are or are expressed in in vitro systems or in cells or organisms other than those in which they are located. in natural conditions.
- Changes or differences in nucleotide sequence between highly similar nucleotide sequences can represent nucleotide substitutions in the sequence that occur during normal replication or duplication. Other substitutions can be specifically calculated and inserted into the sequence for specific purposes, such as changing the codons of certain amino acids or the nucleotide sequence of a regulatory region. Such special replacements can be made in vitro using various mutagenesis technologies or obtained in host organisms under specific breeding conditions that induce or select these changes. Such specially derived sequence variants may be referred to as "mutants" or "derivatives" of the original sequence.
- Mutant or derived nucleic acids can be obtained on a matrix nucleic acid selected from the above nucleic acids, by modifying, deleting, or adding one or more nucleotides in a template sequence or a combination thereof, to produce a template nucleic acid variant. Modifications, additions or deletions can be made by any method known in the art (see, for example, Gustin et al., Biotechniques (1993) 14: 22; Barany, Gene (1985) 37: 111-123; and Colicelli et al. , Mol. Gen. Genet. (1985) 199: 537-539, Sambrook et al., Molecular Cloning: A Laboratory Manual, (1989), CSH Press, pp.
- Modifications, additions, or deletions can also be performed using a method that includes recombination, recursive recombination of sequences, a phosphothioate-modified DNA mutagenesis, mutagenesis on a uracil-containing matrix, double-gap mutagenesis, point-based mismatch mutagenesis, strain mutagenesis, deficient recovery, deficiency repair, deficient recovery, repair deficiency repair, point deficiency recovery mutation.
- mutagenesis radioactive mutagenesis, deletion mutagenesis, restriction-selective mutagenesis, restriction mutagenesis with purification, synthesis of artificial g new, multiple mutagenesis, creation of multiple chimeric nucleic acids, and combinations thereof.
- degenerate variants of nucleic acids that encode the proteins of the present invention.
- Degenerate nucleic acid variants include the replacement of nucleic acid codons with other codons encoding the same amino acids.
- degenerate variants of nucleic acids are created to increase expression in the host cell.
- nucleic acid codons that are not preferred or less preferred in the host cell genes are replaced by codons that are abundantly represented in the coding sequences of the genes in the host cell, where these replaced codons encode the same amino acid. Optimization of the genetic code buried known from the prior art.
- the claimed nucleic acids can be isolated and obtained essentially in purified form.
- Essentially purified form means that the nucleic acids are at least about 50% pure, usually at least about 90% pure and usually "recombinant", that is, flanked by one or more nucleotides with which it is usually not linked in the chromosome found naturally in its natural host organism.
- nucleic acids that encode fusion proteins comprising the protein of the present invention, or fragments thereof, which are discussed in more detail below.
- the nucleic acids encoding the variable domains of the invention can be operatively fused with nucleic acids encoding the corresponding constant domains of the antibody light and heavy chains.
- Nucleic acids encoding the light and heavy chains of an antibody can be promptly fused with nucleic acids encoding a leader peptide, transporting expression products from the host cell. The leader peptide is subsequently cleaved during maturation of the polypeptide.
- a vector and other nucleic acid constructs containing the claimed nucleic acids are also provided.
- the term "vector” includes a nucleic acid molecule capable of transporting another nucleic acid with which it is operatively associated. Certain vectors are capable of autonomous replication in the host cell into which they are introduced, while the remaining vectors can be integrated into the genome of the host cell and, thus, replicated along with the host genome. Moreover, certain vectors are able to direct the expression of genes with which they are operatively linked. Such vectors have the name “recombinant expression vectors” (or, simply, “expression vectors” or “expression vectors”) in this application, and illustrative vectors are well known in the art.
- Suitable vectors include viral and non-viral vectors, plasmids, cosmids, phages, etc., preferably plasmids, and are used for cloning, amplifying, expressing, transferring, etc., the nucleic acid sequence of the present invention in a suitable host.
- the choice of a suitable vector is understandable for a qualified specialist in this field.
- a full-length nucleic acid or part thereof is usually inserted into a vector by attaching a DNA ligase to a site digested with restriction enzymes in the vector.
- the desired nucleotide sequence can be inserted by homologous recombination in vivo, usually by attaching the homologous regions to a vector on the flanks of the desired nucleotide sequence. Homologous sites are added by ligating oligonucleotides or by polymerase chain reaction, using primers including, for example, as homologous plots, and part of the desired nucleotide sequence.
- the vector as a rule, has the origin of replication, ensuring its reproduction in host cells as a result of its introduction into the cell as an extrachromosomal element.
- the vector may also contain regulatory elements that ensure the expression of the nucleic acid in the host cell and the production of the target polypeptide.
- said nucleic acid is operably linked to a regulatory sequence, which may include promoters, enhancers, terminators, operators, repressors and inductors, as well as a start codon of the polypeptide.
- a regulatory sequence which may include promoters, enhancers, terminators, operators, repressors and inductors, as well as a start codon of the polypeptide.
- the nucleic acid of the invention is also operably linked to a leader peptide, allowing the expression product to be released from the host cell into the extracellular space.
- expression cassettes or systems used inter alia to produce claimed polypeptides (for example, the light and heavy chains of an antibody of the invention) based on them or to replicate the claimed nucleic acid molecules.
- the expression cassette may exist as an extrachromosomal element or may be incorporated into the cell genome as a result of the introduction of the expression cassette into the cell.
- the protein product encoded by the nucleic acid of the invention is expressed in any convenient expression system, including, for example, bacterial systems, yeast, plants, insects, amphibians, or mammalian cells.
- the target nucleic acid is operably linked to regulatory sequences, which may include promoters, enhancers, termination sequences, operators, repressors and inductors, as well as the start codon of the polypeptide.
- regulatory sequences may include promoters, enhancers, termination sequences, operators, repressors and inductors, as well as the start codon of the polypeptide.
- the nucleic acid according to the invention the nucleic acid is also operatively associated with a leader peptide, providing the selection of the expression product from host cells into the extracellular space.
- Host cells such as E. coli, B. subtilis, S. cerevisiae, insect cells in combination with baculovirus vectors, or higher organism cells that are not human embryonic cells, such as yeast, plants, vertebrates, for example, CHO cells (for example, ATCC CRL-9096), NS0 cells, SP2 / 0 cells, HEK293 cells, COS cells (for example, ATCC CRL-1650, CRL-1651) and HeLa (ATCC CCL-2).
- Host cells such as E. coli, B. subtilis, S. cerevisiae, insect cells in combination with baculovirus vectors, or higher organism cells that are not human embryonic cells, such as yeast, plants, vertebrates, for example, CHO cells (for example, ATCC CRL-9096), NS0 cells, SP2 / 0 cells, HEK293 cells, COS cells (for example, ATCC CRL-1650, CRL-1651) and HeLa (ATCC CCL-2).
- the host cell is co-transformed with an expression vector comprising a nucleic acid encoding an antibody light chain and an expression vector comprising a nucleic acid encoding an antibody heavy chain.
- an expression vector comprising a nucleic acid encoding an antibody light chain and an expression vector comprising a nucleic acid encoding an antibody heavy chain.
- a single expression vector is used in which nucleic acids are inserted that encode both the light and heavy chains of the antibody.
- the expression vector (s) encoding the heavy and light chains is transformed (co-transformed) into the host cell so that the light and heavy chains are expressed in the host cell and, preferably, are released on Wednesday, which cultured host cells, antibodies can be isolated from this medium.
- transformation is intended to include a wide range of methods commonly used for the introduction of exogenous DNA into a prokaryotic or eukaryotic host cell, for example, electroporation, calcium phosphate precipitation, transfection with DEAE-dextran, etc., as described by Sambrook, Fritsch and Maniatis (eds) Molecular Cloning; A Laboratory Manual, Second Edition, Cold Spring Harbor, NY (1989; Ausubel FM et al. (Eds.) Current Protocols in Molecular Biology, Green Publishing Associates (1989).
- antibodies are formed by culturing host cells for a period of time sufficient to express the antibody in the host cell, or (more preferably) secreting the antibody into the culture medium, in which grow host cells.
- Antibodies can be isolated from the culture medium using standard protein purification methods. The culture conditions for various cells are well known to those skilled in the art and are described, for example, in Current Protocols in Cell Biology, ed. Bonifacino, J.S., Dasso, M., Harford, J..B., Lippincott-Schwartz, J. and Yamada K.M., ed. John Wiley & Sons, Inc., 2000.
- the resulting replicated nucleic acid, expressed protein or polypeptide is within the scope of the invention as a product of the host cell or organism.
- the product can be isolated by a suitable method known in the art.
- Cell lines that stably express the proteins of the present invention can be selected by methods known in the art (eg, co-transfection with a selectable marker, such as dhfr, gpt, neomycin, hygromycin, which makes it possible to detect and isolate transfected cells that contain gene included in the genome).
- a selectable marker such as dhfr, gpt, neomycin, hygromycin
- the nucleic acid molecules of the present invention can also be used to determine the expression of a gene in a biological sample.
- DNA or mRNA is isolated from a cell sample.
- mRNA can be amplified by RT-PCR, using reverse transcriptase to form a complementary strand of DNA, followed by amplification using polymerase chain reaction using primers specific for the claimed DNA sequences.
- the mRNA sample is separated by gel electrophoresis, transferred to a suitable carrier, for example, nitrocellulose, nylon, etc., and then tested with a fragment of the claimed DNA as a sample.
- oligonucleotide crosslinking assays such as in situ hybridization, and hybridization with DNA samples immobilized on a solid chip. Detection of mRNA hybridizing with the claimed sequence indicates gene expression in the sample.
- the antibody or active fragment thereof of the present invention is used in the treatment of disorders that are associated with the activity of abnormal T-lymphocytes that carry on the surface of the TCR of the TRBV9 family, for example, with the activity of autoimmune T-lymphocytes in AC, celiac disease, T-cell lymphomas.
- the term "patient” in this application refers to a mammal, including, but not limited to, mice, monkeys, humans, mammals, farm animals, mammalian sports animals, and mammals of domestic animals; preferably the term refers to people.
- the patient is additionally characterized by a disease or disorder, or a condition mediated by the presence of TCR in his body, the beta chain of which belongs to the TRBV9 family.
- TCR beta chain which belongs to the family of TRBV9, associated with AS and celiac disease.
- TCR, the beta chain of which belongs to the TRBV9 family may be associated with the development of a number of blood disorders, such as T-cell lymphoma, caused by Epstein-Barr virus.
- co-administration refers to or include:
- an antibody of the invention (for example, aHTH-TRBV9-l, anti-TRBV9-2, aHTH-TRBV9-3, or aHTH-TRBV9-4) can be administered without additional therapeutic treatment, i.e. as an independent therapy.
- treatment with an antibody of the invention may include at least one additional therapeutic treatment (combination therapy).
- the antibody may be co-administered or formulated with another drug / drug for an autoimmune or oncologic disease, in the pathogenesis of which TCRs containing the TRBV9 beta chain are involved, for example, AC, celiac disease, T-cell lymphoma, T-cell leukemia.
- An antibody of the invention will be administered in an amount effective to treat the condition in question, i.e. in doses and for periods of time necessary to achieve the desired result.
- a therapeutically effective amount may vary depending on factors such as the particular condition being treated, the age, sex and weight of the patient, and whether the administration of the antibody is an independent treatment or it is carried out in combination with one or more additional immunosuppressive or anti-inflammatory methods. treatment.
- Drug regimens can be adjusted to provide the optimum desired response. For example, a single bolus may be administered, several divided doses may be administered for a period of time, or the dose may be proportionally reduced or increased in depending on the severity of the therapeutic situation. Particularly useful is the manufacture of parenteral compositions in a standard dosage form for ease of administration and uniformity of dosing.
- the unit dosage form when used in this document, refers to physically discrete units suitable as unit doses for patients / subjects to be treated; each unit contains a given amount of active compound calculated to obtain the desired therapeutic effect in combination with the desired pharmaceutical carrier.
- dosages and dosage regimens are adjusted in accordance with methods well known in the therapeutic field. This means that a maximum tolerated dose can be easily established and an effective amount can also be determined that provides a detectable therapeutic effect for the patient, as well as the time requirements for the administration of each agent to achieve a visible therapeutic effect for the patient.
- a maximum tolerated dose can be easily established and an effective amount can also be determined that provides a detectable therapeutic effect for the patient, as well as the time requirements for the administration of each agent to achieve a visible therapeutic effect for the patient.
- dosage values may vary, depending on the type and severity of the condition, which should be alleviated, and may include one or more doses.
- the specific regimens should be adjusted over time according to the individual need and at the discretion of the medical professional who administers or controls the administration of the compositions, and that the concentration ranges given in this description are only as an example, and are not intended to limit the scope or practice of the claimed compositions.
- the dosage regimen with the compositions of this invention may be based on various factors, including the type of disease, age, weight, gender, patient health conditions, the severity of the condition, the route of administration, and the specific antibody used.
- the dosing regimen can vary widely, but can be determined regularly using standard methods.
- doses may be adjusted based on pharmacokinetic and pharmacodynamic parameters, which may include clinical effects, such as toxic effects or laboratory values.
- the present invention encompasses an individual dose increase, which is determined by a qualified technician. Determining the required dose and modes are well known in the relevant field of technology and will be clear to the person skilled in the art after becoming acquainted with the ideas disclosed in this document.
- a suitable dose of the antibody according to this invention will be in the range of 0.1-200 mg / kg, preferably 0.1-100 mg / kg, including about 0.5-50 mg / kg, for example, about 1 - 20 mg / kg.
- the antibody can be administered, for example, at a dose of at least 0.25 mg / kg, for example, at least 0.5 mg / kg, including at least 1 mg / kg, for example, at least 1, 5 mg / kg, for example, as well as at least 2 mg / kg, for example, at least 3 mg / kg, including at least 4 mg / kg, for example, at least 5 mg / kg; and, for example, up to a maximum of 50 mg / kg, including up to a maximum of 30 mg / kg, for example, up to a maximum of 20 mg / kg, including up to a maximum of 15 mg / kg.
- the introduction will usually be repeated at suitable intervals, for example, once a week, once every two weeks, once every three weeks or once every four weeks, and for as long as deemed appropriate by the responsible doctor, who may in some cases increase or reduce the dose if necessary.
- the antibody according to the invention may be included in a pharmaceutical composition suitable for administration to a patient.
- the antibodies of the invention may be administered alone or in combination with a pharmaceutically acceptable carrier, diluent and / or vehicle in single or multiple doses.
- Pharmaceutical compositions for administration are designed to correspond to the chosen mode of administration, and pharmaceutically acceptable diluents, carriers and / or excipients, such as dispersing agents, buffers, surfactants, preservatives, solubilizing agents, isotonic agents, stabilizers, etc. . used properly.
- These compositions have been developed in accordance with conventional methods, as given in, for example, Remington, The Gennaro, Ed., Mack Publishing Co., Easton, PA 1995, which describes various methods for preparing the compositions, in general known to specialists.
- Drug (drug) a substance or mixture of substances in the form of a pharmaceutical composition in the form of tablets, capsules, powders, lyophilisates, injections, infusions, ointments and other ready-made forms, designed to restore, correct or change the physiological functions in humans and animals , as well as for the treatment and prevention of disease, diagnosis, anesthesia, contraception, cosmetology and other things. Any method of administration of peptides, proteins or antibodies, adopted in this area, can appropriately be used for antibodies according to this invention.
- pharmaceutically acceptable means one or more compatible liquid or solid components that are suitable for administration to a mammal, preferably a human.
- excipient or “excipient” is used in this document to describe any component that is different from the previously described in this invention. These are substances of inorganic or organic origin used in the production process, the manufacture of medicines to give them the necessary physicochemical properties.
- buffer means a solution capable of maintaining the pH value due to the interaction of the acidic and alkaline components that make up its composition, which allows the antibody preparation to be resistant to changes in pH.
- pH values of the pharmaceutical composition are from 4.0 to 8.0.
- buffering agents for example, acetate, phosphate, citrate, histidine, succinate, etc. can be used. buffer solutions, but not limited to them.
- tonic agent refers to an excipient that can bring the osmotic pressure of a liquid antibody preparation.
- "Isotonic” drug is a drug that has an osmotic pressure equivalent to that of human blood. Isotonic preparations usually have an osmotic pressure of from about 250 to 350 mOsm / kg.
- isotonic agents can be polyols, mono- and disahars, amino acids, metal salts, for example, sodium chloride, etc., are used, but not limited to them.
- stabilizer an excipient or a mixture of two or more excipients that provide the physical and / or chemical stability of the active agent.
- amino acids can be used, for example, arginine, histidine, glycine, lysine, glutamine, proline, but not limited to them; surfactants such as polysorbate 20 (trade name Tween 20), polysorbate 80 (trade name Tween 80), polyethylene-polypropylene glycol and its copolymers (trade names Poloxamer (Poloxaner), Pluronic (Pluronic)), sodium dodecyl sulfate (SDS ), but not limited to them; antioxidants, for example, methionine, acetylcysteine, ascorbic acid, monothioglycerol, salts of sulfurous acids, etc., but not limited to; chelating agents, for example, ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid
- the pharmaceutical composition is “stable” if the active agent retains its physical stability and / or chemical stability and / or biological activity during the stated shelf life at storage temperature, for example, at 2-8 ° C.
- the active agent maintains both physical and chemical stability, as well as biological activity.
- the storage period is selected based on the results of stability studies for accelerated and natural storage.
- a pharmaceutical composition comprising a monoclonal antibody of the invention can be administered to a patient with a pathology as described in this application, using standard administration methods, including oral, intravenous, intraperitoneal, subcutaneous, pulmonary, transdermal, intramuscular, intranasal, buccal, sublingual or with the help of suppositories.
- the pharmaceutical composition of the invention preferably contains or is a "therapeutically effective amount" of an antibody of the invention.
- a “therapeutically effective amount” refers to an amount effective at dosages and for periods of time necessary to achieve the desired therapeutic result.
- a therapeutically effective amount of the antibody may vary depending on such factors as the condition of the disease, the age, sex and weight of the individual, and the ability of the antibody or part of the antibody to cause the desired reaction in the individual.
- a therapeutically effective amount is also an amount at which the therapeutically beneficial effect of the antibody prevails over the toxic or detrimental effect.
- a “prophylactically effective amount” refers to an amount effective at dosages and for periods of time necessary to achieve the desired prophylactic result. Since the prophylactic dose is used for individuals before or at an early stage of the disease, typically, a prophylactically effective amount may be less than the therapeutically effective amount.
- a therapeutically effective or prophylactically effective amount is at least the minimum dose, but less than the toxic dose of the active agent necessary to provide therapeutic benefit to the patient.
- a therapeutically effective amount of an antibody of the invention is an amount that in mammals, preferably humans, reduces the biological activity of autoimmune clones, for example, by binding TCR, the beta chain of which belongs to the TRBV9 family, where the presence of these clones causes pathological effects, or a decrease in TKR levels, the beta chain of which belongs to the TRBV9 family, causes a favorable therapeutic effect in a mammal, preferably a human.
- the route of administration of an antibody of the invention may be oral, parenteral, by inhalation or local.
- the antibodies of the invention may be included in a pharmaceutical composition suitable for parenteral administration.
- parenteral includes intravenous, intramuscular, subcutaneous, rectal, vaginal, or intraperitoneal administration. It is advantageous to administer by intravenous or intraperitoneal or subcutaneous injection. Suitable carriers for such injections are directly known in the art.
- the pharmaceutical composition must be sterile and stable under the conditions of manufacture and storage in a container that is provided, including, for example, a hermetically sealed vial (ampoule) or syringe. Therefore, the pharmaceutical compositions can be sterile filtered after preparation of the formulation, or otherwise made microbiologically suitable.
- a typical composition for intravenous infusion may have a volume of 250-1000 ml of fluid, such as sterile Ringer's solution, saline, dextrose solution, and Hank's solution, and a therapeutically effective dose (for example, 1-100 mg / ml or more) of antibody concentration. The dose may vary depending on the type and severity of the disease.
- the dosages for any patient depend on many factors, including the size of the patient, the surface area of the body, the age, the specific compound to be administered, the gender, the time and route of administration, general health, and other medications. which enter at the same time.
- a typical dose may be, for example, in the range of 0.001-1000 ⁇ g; however, doses are foreseen that are below or above this illustrative range, especially given the above factors.
- the dosage regimen of daily parenteral administration can range from 0.1 ⁇ g / kg to 100 mg / kg of total body weight, preferably from 0.3 ⁇ g / kg to 10 mg / kg and more preferably from 1 ⁇ g / kg to 1 mg / kg even more preferably from 0.5 to 10 mg / kg of body weight per day.
- the treatment process can be monitored by periodically assessing the patient’s condition. For repeated administration over several days or longer, depending on the condition of the patient, the treatment is repeated until the desired response or suppression of the symptoms of the disease is achieved. However, other dosage regimens that are not described in this application may also be used.
- the desired dosage can be administered by single-pole administration, multiple bolus administrations, or by continuous infusion of the antibody, depending on the pharmacokinetic disintegration sample that the practitioner wants to achieve.
- the key factor in choosing the appropriate dose and regimen is the desired result.
- the factors considered in this context include the particular disease being treated, the particular mammal being treated, the clinical condition of the individual patient, the cause of the disorder, the site of administration of the antibody, the specific type of antibody, the route of administration, the mode of administration, and other factors known to medical practitioners. .
- the therapeutic agents of the invention may be frozen or lyophilized and reconstituted before use in a suitable sterile vehicle. Lyophilization and repair can result in varying degrees of loss of antibody activity. Dosages can be adjusted to compensate for this loss. In general, Preferred are the pH values of the pharmaceutical composition from 6 to 8.
- the next embodiment of the invention is a product that contains products used to treat autoimmune diseases and related conditions and malignant blood diseases, in the pathogenesis of which TCRs are involved that carry the beta chain of the TRBV9 family.
- diseases include, for example, AU, celiac disease, T-cell leukemia, T-cell lymphoma, and others.
- the product is a container with a label and leaflet, which can be placed in a blister and / or package.
- Suitable containers are, for example, vials, ampoules, syringes, etc.
- Containers can be made of various materials, such as glass or polymeric materials.
- the container contains a composition that is effective for treating a particular condition, and may have a sterile inlet channel. At least one active ingredient in the composition is an antibody according to the invention.
- the label and leaflet in the package indicates that the drug is used to treat a particular condition.
- the label and / or package leaflet in the package should additionally contain instructions for administering the antibody composition to the patient, including information about the indications, use, dose, route of administration, contraindications and / or precautions regarding the use of such therapeutic products.
- the composition is used for the treatment to indicate what.
- the product may include other products necessary from a commercial and consumer point of view, for example, solvents, thinners, filters, needles and syringes, but not limited to them.
- kits that can be used for various purposes, for example, to assess the ability to destroy T-cells that carry the TCR of the TRBV9 family, for cleaning or immunoprecipitating the TRBV9 receptor from cells.
- the kit may contain an antibody bound to granules (for example, sepharose granules).
- the kit contains a container and a label and leaflet package.
- Antibodies of the present invention are also used for diagnostic purposes (eg, in vitro, ex vivo).
- an antibody can be used to detect or measure the level of T-lymphocytes containing TCRs of the TRBV9 family in samples obtained from a patient, such as a tissue sample or body fluid sample, such as inflammatory exudate, blood, intestinal fluid, saliva, or urine.
- Suitable detection and measurement methods include immunological methods such as flow cytometry, enzyme-linked immunosorbent assay (ELISA), chemiluminescence analysis, radioimmunoassay and immunohistology.
- the invention further includes kits, for example, diagnostic kits containing the antibodies described herein.
- Nucleic acids (SEQ ID No 10, 12, 14, 16, 18) encoding the variable domains of the antibody heavy and light chains were obtained by amplifying DNA fragments using overlapping primers and high-precision Q5 polymerase (NEB, USA). The obtained nucleic acids were purified on Quagen columns (Germany) using a reagent kit (# 28104) and sent to commercially available pFuse vectors containing the constant regions of the human heavy (IgGl) and light (kappa) human chains (Invivogen, USA). The sequences of the cloned fragments were confirmed by sequencing using the Sanger method.
- HV aHTH-TRBV9-l the nucleotide and amino acid sequences of which are shown in SEQ ID No: 20 and 21;
- HV aHTH-TRBV9-2 the nucleotide and amino acid sequences of which are shown in SEQ ID No: 22 and 23;
- HV aHTH-TRBV9-3 the nucleotide and amino acid sequences of which are shown in SEQ ID No: 24 and 25
- HV aHTH-TRBV9-3 the nucleotide and amino acid sequences of which are shown in SEQ ID No: 26 and 27;
- the degree of humanization of the antibody heavy chain is 72%, and that of the light chain is 69%.
- Plasmids containing the heavy and light chains of immunoglobulins were dissolved in water tested for endotoxins (Quagen, USA)
- the resulting reaction mixtures were incubated at 37 ° C on a rocking chair for a week.
- the cell supernatant was harvested, which was used to isolate antibodies.
- the supernatant was centrifuged three times at 10,000 rpm for 10 minutes, and the liquid fraction was purified using a 1 ml HiTrap PrG column (Thermo Fisher scientific, USA).
- 0.1 M glycine buffer, pH 2.5 was used, brought in HCl.
- the quality of excretion was assessed using 12% PAAT-electrophoresis under denaturing conditions. Quantitative evaluation was performed using a measurement on a NanoDrop2000 microspectrophotometer at 280 A. The resulting product was stored at + 4 ° C.
- the affinity of anti-TRB V9 antibodies was determined on an OctetRed 96 device (from ForteBio). Second-generation amino-reactive sensors (from AR2G) nonspecifically immobilized antigens (Table 1) according to the standard protocol according to the manufacturer's instructions for the preparation and immobilization of AR2G sensors. Analysis was performed at 30 ° C using phosphate-saline buffer (PBS) containing 0.1% Tween-20 and 0.1% BSA as a working buffer. Analysis of the binding affinity of anti-TRBV9 antibodies was performed using a working buffer from a concentration of 126 nM to 2 nM in increments of 2. The binding curves with the deduction of the reference signal were analyzed using the Octet Data Analysis software (version 7.0) according to the standard procedure using the 1: 1 interaction model. The results are summarized in Table 2.
- TRBV7 + TRAV38 antigens When using TRBV7 + TRAV38 antigens, no interaction with antibodies was observed. The best characteristics showed antibodies TRBV9-2 and TRBV9-4.
- Example 2 The use of monoclonal antibodies anmu-TRBV9 for labeling T-lymphocytes expressing the beta-chain of TCR, belonging to the family of TRBV9.
- Monoclonal antibodies (aimi-TRBV9-l, airra-TRBV9-2, anti-T1TVU-3, aHTH-TRBV9-4, characterized by the heavy chain CDR3 sequence) were prepared as described in Example 1. To visualize the antibodies, they were labeled with fluorescein reagent fluorescein isothiocyanate (Sigma, USA) according to the manufacturer's protocol. The amount of fluorophores reacted with the antibody molecules was monitored by the ratio of the absorption spectrum at wavelengths of 495/280 nm. Labeled antibodies were used to identify T-lymphocytes expressing the TCR beta-chain of the TRBV9 family in the mononuclear fraction of human blood.
- peripheral blood from 5 healthy donors was used. Blood was collected in Vacuette tubes with EDTA (2x9 ml each), mononuclear fraction according to the standard procedure described in (Kovalchuk L.V. et al. Immunology: practical work — 2010. - 176 p.). After isolation, the cells were transferred to phosphate-buffered saline (PBS) containing 0.5% bovine serum albumin (BSA) and 2 mM EDTA. The total number of cells and their viability were determined by the trypan blue staining method as described by Lang N.P. (Stimulation of lymphocyte M.: Medicine, 1976.-288 c).
- PBS phosphate-buffered saline
- BSA bovine serum albumin
- T-lymphocytes To label T-lymphocytes in each test, an aliquot of a mononuclear fraction containing 500 thousand cells each (per test) was added in PBS buffer with the addition of 0.5% bovine serum albumin (BSA) and 2 Mm EDTA antibodies T1TVU9-2, anti-T1TVU9-3, anti-T1TVU9-4 to a final concentration of 5 ng / ⁇ l and 0.5 ng / ⁇ l, as well as monoclonal antibody against CD3-eFluor405 ((clone OKTZ, eBioscience);) at a concentration recommended by the manufacturer.
- BSA bovine serum albumin
- anti-TRBV9-2 anti-T1TVU9-3, anti-TRB V9-4
- anti-TRBV9-2 showed staining of different proportions of TRBV9 + lymphocytes at the same concentrations.
- specificity of the work of anti-T1TVU9-2 was determined by the absence of slightly stained nonspecific CD3 negative cells, which is present when using other options, and a significant separation of a specific cell population from other CD3 positive lymphocytes negative for TRBV9 receptor.
- anti-T1TVU9-2 shows the most effective and highly specific staining of T lymphocytes TRBV9 +.
- This antibody can be used for diagnostic purposes for the detection of TRBV9 + T lymphocytes at a concentration of 0.6 ng / ⁇ l.
- the reaction mixtures were incubated at room temperature for 30 min, the cells were washed with PBS buffer with 0.5% BSA and sorted on a cell sorter (FACSARIA III, USA), isolating the population of CD3 + TRBV9 + cells, as well as CD3 + TRBV9-.
- a cell sorter FACSARIA III, USA
- the isolated RNA was synthesized to DNA and the T receptor beta chain fragments were amplified according to the protocol described by Britanova et al (J Immunol, 2016, 196 (12) 5005-5013) using the Mint cDNA synthesis kit (Evrogen, Russia).
- the Illumina adapters (USA) were ligated to the accumulated amplicons and sequenced on the MiSeq Illumina platform according to the protocol of the manufacturer of the sequencer.
- Monoclonal antibodies (anti-T1TVU9-1, anti-T1TVU9-2, anti-TMZU9-3, anti-TRB V9-4, characterized by the heavy chain CDR3 sequence) were obtained as described in Example 1.
- the mononuclear fraction of human blood was obtained as described in Example 2.
- NK cells were isolated using a set of reagents for isolating human NK cells # 130-092-657 (Miltenyi biotec, USA). Used the manufacturers protocol. The quality of the release of NK cells was assessed using cytofluometry (BD FACS ARIA III, USA) using labeled CD16-FITC, CD56-PE, CD3-VioBlue antibodies. The enrichment of NK cells was 85-95%.
- antibodies (aHTH-TRBV9-1, aHTH-TRBV9-2, aHTH-TRBV9-3, or aHTH-TRBV9-4) were added to a final concentration of 5 ⁇ g / ml.
- Remikade antibodies were used in the same concentration as aHTH-TRBV9. No antibodies were added to the control aliquot of the cells (positive control).
- 105 NK cells were added to all reaction mixtures. The final reaction volume was 100 ⁇ l.
- reaction mixtures were incubated at room temperature for one hour, then the cells were washed several times from the antibodies and spread through the wells of a 96-well round-the-bottom plate, on a table.
- T lymphocytes After 6 days, cells were harvested from the wells and used for immunophenotypic analysis using flow cytometry. The following antibodies were used for the detection of T lymphocytes: anti-CD3-eFluor450 (clone OKTZ, eBioscience); anti-CD8-PC7 (clone SFCI21Thy2D3, Beckman Coulter, USA); our antibodies aHTH-TRBV9-l, 2,3,4, labeled Fite. After staining, the cells were washed and analyzed on a BD FACSARIA III instrument. CD3 + TRBV9 + T lymphocytes are not detectable in samples incubated with the aHTH-TRBV9 antibodies of the present invention.
- a stable cell line producing monoclonal antibodies anti-TRBV9-2 was obtained by transfecting the suspension cell line CHO-S with vector constructs containing the light and heavy chains of the antibody in an optimized ratio.
- High level clonal lines (> 100 mg / l) were obtained using the ClonePix robotic platform (Molecular Devices).
- the analysis of the productivity of the selected clones was carried out on the basis of the automated system Biomek FX robotics (Beckman Coulter) and the analytical system Octet RED96 (Pall Life Sciences). For the cultivation of the producer used serum-free medium, not containing animal protein.
- Preparation of the BCD085 preparation for preclinical studies was carried out in a HyClone single-use bioreactor (Thermoscientific) fermenter with a working volume of 200 liters.
- Example 5 Obtaining a pharmaceutical composition containing the antibody according to the invention
- the components of the pharmaceutical composition are shown in Table 3. Table 3. The concentration of the components of the pharmaceutical composition
- Example 6 A kit containing a pharmaceutical composition with antibodies
- the pharmaceutical composition prepared according to Example 5 is sealed in ampoules or 1 ml syringes under sterile conditions, labeled and packaged in containers of plastic or cardboard material.
- mutant HV anti-T1TVU9-1 sequences site-directed mutagenesis was performed using "overlap extention" of PCR products as described by Wurch et al., Methods in Molecular Biology. 12 (9), 653-657 (2004).
- high-precision polymerase Q5 NEB, USA
- the obtained fragments were purified using electrophoresis in 1% agarose gel and further extraction.
- DNA fragments isolated from the gel containing mutations were combined into the whole structure by the method of “overlap extention” PCR (denaturation of 95 ° C — 12 sec; annealing at 55 ° C — 2 min; elongation 72 ° C — 1 min, 8 cycles of PCR).
- This method implies that as a matrix and seeds used in the reaction mixture fragments with complementary parts of each other.
- Amplification of the whole structure was performed by standard PCR with the addition of primers complementary to the ends of the amplified fragment.
- the obtained nucleic acids were purified on Quagen columns (Germany) using the reagent kit (# 28104) and cloned into the pFuse vector as described in Example 1.
- the mutant DNA sequences were checked by sequencing according to the Sanger method.
- variant 1 - in SEQ ID NO: 30 and SEQ ID NO: 31 The nucleotide and amino acid sequences of the resulting variable domains are shown: variant 1 - in SEQ ID NO: 30 and SEQ ID NO: 31; option 2 in SEQ ID NO: 32 and SEQ ID NO: 33.
- mutant antibodies to bind to T-lymphocytes expressing the TCR beta-chain belonging to the TRBV9 family was tested as described in Example 2. It was shown that the substitutions made affect the binding specificity.
- Gly Trp lie Asn Thr Thr Thr Sly Thr Pro Thr Tyr Ala Asp Asp Phe
- Leu gin lie ser asn leu lys asn glu asp thr ala thr tyr phe cys
- 325 330 335 lie Glu Lys Thr lie Ser Lys Ala Lys Gly Gin Pro Arg Glu Pro Gin
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Priority Applications (18)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16/957,328 US11597767B2 (en) | 2017-12-25 | 2018-12-25 | Monoclonal antibodies that bind TRBV9 and methods for using same for inhibiting the T cell receptor for treatment |
| NZ766247A NZ766247B2 (en) | 2018-12-25 | Monoclonal antibodies and methods for using same | |
| MX2020006736A MX2020006736A (es) | 2017-12-25 | 2018-12-25 | Anticuerpos monoclonales y metodos para utilizar los mismos. |
| CA3086849A CA3086849A1 (en) | 2017-12-25 | 2018-12-25 | Monoclonal antibodies and methods for using same |
| PE2020000858A PE20200927A1 (es) | 2017-12-25 | 2018-12-25 | Anticuerpos monoclonales que se unen a la region de la cadena beta de la familia trbv9 del receptor de las celulas t humanas |
| JP2020535637A JP7339948B2 (ja) | 2017-12-25 | 2018-12-25 | モノクローナル抗体およびその使用法 |
| KR1020207021655A KR102867660B1 (ko) | 2017-12-25 | 2018-12-25 | 단일클론 항체 및 그 이용 방법 |
| AU2018398341A AU2018398341B2 (en) | 2017-12-25 | 2018-12-25 | Monoclonal antibodies and methods for using same |
| CR20200324A CR20200324A (es) | 2017-12-25 | 2018-12-25 | Anticuerpos monoclonales y método para utilizar los mismos |
| MA50128A MA50128B1 (fr) | 2017-12-25 | 2018-12-25 | Anticorps monoclonaux liants le recepteur trbv9 des lymphocytes t et procédés de leur utilisation |
| CN201880090210.0A CN111801354B (zh) | 2017-12-25 | 2018-12-25 | 单克隆抗体及其使用方法 |
| EP18895626.2A EP3733705A4 (en) | 2017-12-25 | 2018-12-25 | MONOCLONAL ANTIBODIES AND METHOD OF USING THEM |
| BR112020012959-3A BR112020012959A2 (pt) | 2017-12-25 | 2018-12-25 | anticorpos monoclonais e métodos para usar o mesmo |
| EA202091569A EA202091569A1 (ru) | 2017-12-25 | 2018-12-25 | Моноклональные антитела и способы их применения |
| JOJO/P/2020/0161A JOP20200161B1 (ar) | 2017-12-25 | 2020-06-25 | أجسام مضادة أحادية النسيلة وطرق استخدامها |
| ZA2020/03858A ZA202003858B (en) | 2017-12-25 | 2020-06-25 | Monoclonal antibodies and methods for using same |
| PH12020551012A PH12020551012A1 (en) | 2017-12-25 | 2020-06-25 | Monoclonal antibodies and methods for using same |
| US18/103,194 US12514923B2 (en) | 2017-12-25 | 2023-01-30 | Methods of inhibiting the T cell receptor by administering a monoclonal antibody that binds TRBV9 |
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| RU2017145662A RU2694412C9 (ru) | 2017-12-25 | 2017-12-25 | Моноклональные антитела и способы их применения |
| RU2017145662 | 2017-12-25 |
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| US16/957,328 A-371-Of-International US11597767B2 (en) | 2017-12-25 | 2018-12-25 | Monoclonal antibodies that bind TRBV9 and methods for using same for inhibiting the T cell receptor for treatment |
| US18/103,194 Continuation US12514923B2 (en) | 2017-12-25 | 2023-01-30 | Methods of inhibiting the T cell receptor by administering a monoclonal antibody that binds TRBV9 |
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| WO2019132738A1 true WO2019132738A1 (ru) | 2019-07-04 |
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| US (2) | US11597767B2 (ru) |
| EP (1) | EP3733705A4 (ru) |
| JP (1) | JP7339948B2 (ru) |
| KR (1) | KR102867660B1 (ru) |
| CN (1) | CN111801354B (ru) |
| AU (1) | AU2018398341B2 (ru) |
| BR (1) | BR112020012959A2 (ru) |
| CA (1) | CA3086849A1 (ru) |
| CL (1) | CL2020001726A1 (ru) |
| CR (1) | CR20200324A (ru) |
| EA (1) | EA202091569A1 (ru) |
| EC (1) | ECSP20039728A (ru) |
| JO (1) | JOP20200161B1 (ru) |
| MA (1) | MA50128B1 (ru) |
| MX (1) | MX2020006736A (ru) |
| NI (1) | NI202000051A (ru) |
| PE (1) | PE20200927A1 (ru) |
| PH (1) | PH12020551012A1 (ru) |
| RU (1) | RU2694412C9 (ru) |
| WO (1) | WO2019132738A1 (ru) |
| ZA (1) | ZA202003858B (ru) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022515820A (ja) * | 2018-12-25 | 2022-02-22 | ジョイント・ストック・カンパニー “バイオキャド” | ヒトtrbv9に特異的に結合するモノクローナル抗体 |
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| RU2694412C9 (ru) * | 2017-12-25 | 2019-09-18 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Российский национальный исследовательский медицинский университет им. Н.И. Пирогова" Министерства здравоохранения Российской Федерации (ФГБОУ ВО РНИМУ им. Н.И. Пирогова Минздрава России) | Моноклональные антитела и способы их применения |
| EP3927745A1 (en) * | 2019-02-21 | 2021-12-29 | Marengo Therapeutics, Inc. | Multifunctional molecules that bind to t cells and uses thereof to treat autoimmune disorders |
| PE20251393A1 (es) * | 2022-08-18 | 2025-05-22 | Biocad Joint Stock Co | Metodo de tratamiento de una enfermedad o trastorno mediado por linfocitos t portadoras del segmento trbv9 dentro del receptor de celulas t |
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