WO2013109057A1 - 자성나노입자-samirna 복합체 및 그 제조방법 - Google Patents
자성나노입자-samirna 복합체 및 그 제조방법 Download PDFInfo
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Definitions
- the present invention is used for diagnosis with SAMiRNA, which is a nanoparticle composed of a double-stranded oligo RNA structure combined with hydrophilic and hydrophobic substances to improve the delivery of double-stranded oligo RNA, which can be usefully used for the treatment of cancer and infectious diseases.
- SAMiRNA is a nanoparticle composed of a double-stranded oligo RNA structure combined with hydrophilic and hydrophobic substances to improve the delivery of double-stranded oligo RNA, which can be usefully used for the treatment of cancer and infectious diseases.
- the present invention relates to a SAMiRNA-magnetic nanoparticle complex consisting of magnetic nanoparticles, a method for preparing such a complex, and a delivery and delivery of a double-stranded oligo RNA using the complex, and a treatment and / or diagnostic technique for diseases including cancer and infectious diseases.
- Diagnosis and treatment are two main categories in the clinical application of the disease. Recently, the concept of therapnosis, a technology that simultaneously performs diagnosis and therapy using imaging functions in anticancer drugs, has been introduced. Successful theragnosis requires imaging agents and drugs to be effectively delivered to the target disease site. In drug delivery, the drug is not delivered to the target disease site so that it is not effective in clinical treatment.In severe cases, the drug is administered into the body and the drug is administered to the tissue ( It can be delivered to normal tissues rather than tissues, causing severe side effects.
- Imaging modality includes fluorescence optical imaging, magnetic resonance imaging (MRI), Positron-Emission Tomography PET and computed tomography (CT).
- MRI magnetic resonance imaging
- CT computed tomography
- Various imaging agents have been developed for use in the imaging device.
- magnetic nanoparticles are not toxic, have excellent biocompatibility, can be injected through blood vessels, and can accumulate high content in tissue. (Kim Tae-eok, Nanobiotechnology, Biotechnology Policy Research Center, 2009).
- magnetic nanoparticles In nano-bio applications, magnetic nanoparticles have a wide range of applications, such as biomaterial separation, magnetic resonance imaging diagnostic contrast agents, biosensors including Giant Magneto Resistive Sensors, drug / gene delivery, and magnetic high temperature therapy. I am used over. Specifically, magnetic nanoparticles can be used as a contrast agent for the diagnosis of molecular magnetic resonance imaging. Magnetic nanoparticles have been widely used in resonance imaging until now, as they have an effect of shortening spin-spin relaxation time of hydrogen atoms of water molecules around nanoparticles and amplifying magnetic resonance imaging signals.
- the magnetic nanoparticles can also be used for biological treatment through the delivery of drugs or genes.
- drugs or genes By chemically binding or adsorption to magnetic nanoparticles, drugs or genes are loaded and moved to a desired location using an external magnetic field, thereby enabling the release of drugs and genes at specific sites, thereby enabling selective therapeutic effects.
- patent publication 08193778 discloses a method for delivering drugs using magnetic nanoparticles.
- Magnetic liposomes have the advantage that magnetic nanoparticles are contained in liposomes surrounded by a phospholipid layer and can be delivered to specific sites by including therapeutic drugs or genes in liposomes (Toshihiro Matsuo et al., J. Biomedical Materials Research).
- MCLs magnetic cationic liposomes
- nanoparticles when the nanoparticles are injected into a living body, a long circulating property is required that does not aggregate in the blood but is well dispersed and circulated for a suitable time.
- nanoparticles due to the large surface area, nanoparticles are agglomerated due to the biofouling phenomenon that various plasma proteins and salts adhere to each other well. Therefore, reticuloendothlial such as liver Kuffer cells or spleen macrophage system, RES) can be easily removed. Therefore, after the nanoparticles are administered into the body, they disappear from the blood within a few minutes, making it impossible to reach the desired tissue.
- RES reticuloendothlial
- siRNAs have been shown to have an excellent effect on inhibiting the expression of specific genes in animal cells, which has attracted the spotlight as gene therapeutics. Due to their high activity and precise gene selectivity, siRNAs have been studied for the past 20 years and are currently used as therapeutic agents. It is expected as a therapeutic agent to replace nucleotides (ODN) (Dana J. Gary et al. Journal of Controlled Release 121: 64-73, 2007).
- ODN nucleotides
- the siRNA technique used for therapeutic purposes has a great advantage because it can be designed more easily than other medicines, and has high target selectivity and characteristics that effectively inhibit the expression of a specific gene, and inhibits gene expression by RNAi such as siRNA. Since it uses a mechanism that exists naturally in vivo also has the advantage of low toxicity.
- nanoparticles in the form of a combination of a substance capable of binding to a receptor present at a specific site and a drug capable of killing cancer cells may be a means for delivering a drug by targeting a specific cell.
- the biggest problem to be solved in the treatment of diseases such as cancer is to select a suitable 'targeting agent' that can accurately deliver the nanoparticles containing the therapeutic agent to the target tissues such as cancer cells. It is a technique of combining The target material or ligand bound to the nanoparticles should be able to bind to the surface of the tumor cells in an appropriate manner to activate the receptors to introduce the anticancer substances contained in the nanoparticles into the cells (Lee Jun Woong, Nano for Cancer Treatment) Particle and Target Tracking System, Advanced Technology Information Analysis Report, Korea Institute of Science and Technology Information, 2004).
- a hydrophilic material e.g., polyethylene glycol, PEG
- PEG polyethylene glycol
- PEGylation polyethylene glycol
- a double-stranded oligo RNA structure in which hydrophilic and hydrophobic materials are coupled to a double-stranded oligo RNA has been developed, and the double-stranded oligo RNA structure forms self-assembled nanoparticles by hydrophobic interaction of hydrophobic materials.
- the self-assembled nanoparticles are referred to as 'SAMiRNA' (Korean Patent Publication No. 2009-0042297).
- An object of the present invention is SAMiRNA, which is a nanoparticle composed of a double-stranded oligo RNA structure in which hydrophilic and hydrophobic substances are bound to a double-stranded oligo RNA that can be used for treatment, and a SAMiRNA-magnetic made of magnetic nanoparticles used for diagnosis. It is to provide a nanoparticle composite and a method for producing such a composite.
- the hydrophilic material of the double-stranded oligo RNA structure according to the present invention can be further bound to a target specific ligand to enhance the delivery ability to a target.
- the SAMiRNA-magnetic nanoparticle complex may be formed by the interaction of the hydrophobic material in the SAMiRNA and the hydrophobic material coated on the magnetic material surface of the magnetic nanoparticle.
- Another object of the present invention is to provide a therapeutic and / or diagnostic composition comprising the SAMiRNA-magnetic nanoparticle complex and a method for treating and / or diagnosing a disease using the same, wherein the SAMiRNA-magnetic nanoparticle complex according to the present invention is It can be very usefully used for the treatment and / or diagnosis of various diseases including cancer and infectious diseases.
- the SAMiRNA formation technique can be applied not only to double-stranded oligo RNA, but also to single-stranded oligonucleotides, especially single stranded antisense oligonucleotides (ASOs) having therapeutic purposes.
- ASOs single stranded antisense oligonucleotides
- the SAMiRNA-magnetic nanoparticle complex of the present invention exhibits an excellent therapeutic effect due to increased cell delivery efficiency due to improved biostable stability and homogeneous nanoparticle size of the double-stranded oligo RNA, and for diagnostic purposes due to the characteristics of the magnetic nanoparticles. It can also be used. That is, it can be used for so-called theragnosis, which can be simultaneously treated and diagnosed, and thus, a new type of double-stranded oligo RNA delivery system for diagnosing and treating diseases. It can be used very usefully across various industries.
- ligand-bound SAMiRNA-magnetic nanoparticle complex is inhibited in nonspecific delivery to other organs and cells, and thus can efficiently and specifically diagnose and treat cancer.
- the magnetic nanoparticles and the double-stranded oligo RNA structure group complex are formed in order to enhance the in vivo delivery of the magnetic nanoparticles
- the magnetic nanoparticles can be contained in the SAMiRNA, so that the SAMiRNA-magnetic nanoparticle complex of the more uniform form is formed. It has the advantage of being able to form.
- the double-stranded oligo RNA is specifically delivered to cancer, thereby exhibiting the activity of the double-stranded oligo RNA in a target tissue even at a relatively low concentration.
- FIG. 1 is a schematic diagram of a SAMiRNA-magnetic nanoparticle complex.
- Figure 2 of the SAMiRNA-magnetic nanoparticles prepared in Example 1-3 A diagram showing a polydispersity index (PDI) graph.
- 3 is a transmission electron micrograph of the SAMiRNA-magnetic nanoparticle complex.
- the present invention is to provide a novel terragnosis technology that can simultaneously perform the diagnosis and treatment of diseases such as cancer, to the magnetic nanoparticles and double-stranded oligo RNA having a structure in which the first hydrophobic material is coated on the surface of the magnetic material
- a SAMiRNA-magnetic nanoparticle complex comprising a SAMiRNA comprising a double-stranded oligo RNA structure combining a hydrophilic material and a second hydrophobic material is provided.
- hydrophobic material' in the present invention means a hydrophobic material coated on the magnetic material surface of the magnetic nanoparticles
- 'second hydrophobic material' is a hydrophobic material that is covalently linked in the double-stranded oligo RNA structure of SAMiRNA Means.
- the first hydrophobic material and the second hydrophobic material may be the same or similar to each other, or may be different from each other.
- the first hydrophobic material coated on the surface of the magnetic material consists of magnetic nanoparticles whose core is coated with the surface of the magnetic material.
- hydrophobic interactions of the second hydrophobic material contained in the double-stranded oligo RNA structure (the second hydrophobic material is bound to the double-stranded oligo RNA), and a hydrophilic material is formed at the outermost side of the double-stranded oligo RNA. It forms a structure bound to the double helix oligo RNA (see Figure 1).
- “Coating" in the present invention means that the first hydrophobic material is physically adsorbed to the magnetic material, or includes both chemically bonded.
- the binding between the hydrophilic and hydrophobic material and the double-stranded oligo RNA in the SAMiRNA included in the magnetic nanoparticle-SAMiRNA complex is preferably a covalent bond, but is not necessarily limited thereto.
- the magnetic nanoparticles of the SAMiRNA-magnetic nanoparticle complex contain a magnetic material, it can be usefully used for a diagnostic method using magnetic properties.
- the present invention may be applied to various diagnostic methods including magnetic resonance imaging (MRI) using magnetic properties.
- MRI magnetic resonance imaging
- the magnetic material of the magnetic nanoparticles may be used without limitation as long as the particles have a diameter of 1 nm to 200 nm, preferably 2 nm to 100 nm, and the magnetic material may be magnetic metal or magnetic metal oxide.
- the magnetic metal is an iron group metal element (Fe, Ni, Co), rare earth elements (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu), money metal elements (Cu, Ag, Au), zinc group elements (Zn, Cd, Hg), aluminum group elements (Al, Ga, In, Tl), alkaline earth metal elements (Ca, Sr, Ba, Ra) And at least one metal selected from platinum group elements (Pt, Pd, etc.) or alloys thereof.
- Fe iron group metal element
- Fe rare earth elements
- La Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu
- money metal elements Cu, Ag, Au
- zinc group elements Zn, Cd, Hg
- aluminum group elements Al, Ga, In, Tl
- alkaline earth metal elements Ca, Sr, Ba, Ra
- the magnetic metal material may be iron group metal elements (Fe, Ni, Co), rare earth elements (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu), money metal elements (Cu, Ag, Au), zinc group elements (Zn, Cd, Hg), aluminum group elements (Al, Ga, In, Tl), alkaline earth metal elements (Ca, Sr, Ba, Ra) and platinum group elements (Pt, Pd, etc.) are preferably made of an oxide of one or more selected metals or oxides of alloys thereof.
- the first hydrophobic material coated on the surface of the magnetic material may be used without limitation as long as it is a material capable of forming the SAMiRNA-magnetic nanoparticle complex of the present invention.
- Non-limiting examples include C 6 to C 25 an aromatic compound, having the carbon number of C 6 to C 25 ethers, may be a carbon number of C 6 to C 25 aliphatic hydrocarbon and carbon number of the amine C 6 to C 25, when considering the formation of a nanoparticle complex saturated or unsaturated fatty acids And / or alkylamines.
- the double helix oligo RNA construct constituting the SAMiRNA in the present invention has a structure of the following formula (1).
- one of A and B is a hydrophilic material, and the other is a second hydrophobic material;
- R is a double helix oligo RNA;
- X and Y are preferably, but not limited to, simple covalent bonds or linker-mediated covalent bonds.
- the double-stranded oligo RNA structure constituting the SAMiRNA in the present invention preferably has a structure of the following formula (1).
- one of A and B is a hydrophilic material, and the other is a second hydrophobic material;
- X and Y are each independently a simple covalent bond or a linker mediated covalent bond;
- S means the sense strand of the double-stranded oligo RNA,
- AS means the antisense strand of the double-stranded oligo RNA.
- Ligand in the present invention is meant to include all substances having properties that specifically bind to receptors that promote target cell internalization through receptor-mediated endocytosis (RME), in particular target specificity. May be selected from the group consisting of target specific antibodies, aptamers, peptides or receptor specific chemicals that bind to and bind receptor-mediated endocytosis (RME). It doesn't work.
- the receptor specific chemicals are preferably selected from folate, N -acetyl galactosamine, and mannose, but are not limited thereto.
- the hydrophilic substance of the double-stranded oligo RNA structure may be modified to have a functional group necessary for binding to a substance such as a ligand.
- PEG polyethylene glycol
- the hydrophilic materials PEG (polyethylene glycol) can introduce various molecular weights and functional groups, and has excellent bio-compatibility such as in vivo affinity and induction of immune response, and double-stranded oligo RNA It is very suitable for the preparation of the structure of the present invention because it increases its stability in vivo and increases its delivery efficiency.
- the double-stranded oligo RNA is preferably composed of 19 to 31 nucleotides.
- the double-stranded oligo RNA usable in the present invention may be adopted from any gene that is or may be used for gene therapy or research, ie, double-stranded oligo RNA capable of sequence-specific binding to such genes.
- the covalent bonds may be either non-degradable bonds or degradable bonds.
- the non-degradable bond is an amide bond or phosphate bond
- the degradable bond is a disulfide bond, an acid decomposable bond, an ester bond, an hydride bond, a biodegradable bond, or an enzyme decomposable bond. There is, but is not necessarily limited to this.
- the second hydrophobic material may be used without limitation as long as it is a material capable of forming the SAMiRNA-magnetic nanoparticle complex of the present invention, and preferably has a molecular weight of 100 to 2,000, in particular, a steroid derivative, a glyceride ( glyceride derivatives, glycerol ethers, polypropylene glycols, C 12 to C 50 unsaturated or saturated hydrocarbons, diacylphosphatidylcholine, fatty acids, phospholipids Lipopolyamine may be used, but the present invention is not limited thereto, and any second hydrophobic material may be used as long as it satisfies the purpose of the present invention. It is self-evident to.
- the steroid derivative may be selected from the group consisting of cholesterol, colistanol, cholic acid, cholesterylformate, cotestanylmormate and colistanylamine, and the glyceride derivatives are mono-, di And tri-glycerides and the like, wherein the fatty acid of the glyceride is a C 12 to C 50 unsaturated or saturated fatty acid.
- the second hydrophobic material causes a hydrophobic interaction with the first hydrophobic material, and the hydrophobic interaction serves to form a SAMiRNA-magnetic nanoparticle complex consisting of a magnetic nanoparticle and a double-stranded oligo RNA structure.
- the first hydrophobic material and the second hydrophobic material may be the same or different materials from each other.
- the hydrophilic material is preferably derived from a nonionic polymer having a molecular weight of 1,000 to 10,000.
- nonionic hydrophilic materials such as polyethylene glycol (PEG), polyvinylpyrolidone, polyoxazoline, and the like, but are not necessarily limited thereto.
- the double-stranded oligo RNA structure in the present invention has a form in which a hydrophilic material and a second hydrophobic material are bonded to both ends of the double-stranded oligo RNA, for example, double-stranded oligo RNA as shown in Equation 2 below.
- a double-stranded oligo RNA structure in which a second hydrophobic material is bound to the 5 'end of the sense strand and a hydrophilic material is bound to the 3' end may be used.
- A is a second hydrophobic material and B is a hydrophilic material;
- S is the sense strand of double-stranded oligo RNA, AS is the antisense strand of double-stranded oligo RNA;
- X and Y are preferably each independently covalent bonds mediated by simple covalent bonds or linkers, but are not limited thereto.
- RNA single strand based on a solid support, preferably CPG, to which a hydrophilic material is bound;
- the reaction product is purified using high performance liquid chromatography (High Performance Liquid Chromatography, HPLC), and the molecular weight is measured using a MALDI-TOF mass spectrometer. Oligo RNA and double helix oligo RNA structures can be confirmed whether prepared.
- HPLC High Performance Liquid Chromatography
- the step of synthesizing the RNA single strand of the sequence complementary to the sequence of the RNA single strand synthesized in step (1) is an independent synthesis process before (1) or (1) to (4) It may be carried out during any one of the processes.
- the RNA single strand synthesized in step (1) and the RNA single strand having a complementary sequence may be used in the form of a phosphate group bonded to the 5 'end.
- a double-stranded oligo RNA structure in which a hydrophilic material is bonded to the 5 'end of the sense strand of the oligo RNA and a second hydrophobic material is bonded to the 3' end as shown in Equation 3 may be used.
- A is a second hydrophobic material and B is a hydrophilic material;
- S is the sense strand of double-stranded oligo RNA, AS is the antisense strand of double-stranded oligo RNA;
- X and Y are preferably, but not limited to, simple covalent bonds or linker-mediated covalent bonds.
- the reaction product is purified using High Performance Liquid Chromatography (HPLC), and then the molecular weight is measured using a MALDI-TOF mass spectrometer. Double helix oligo RNA and double helix oligo RNA constructs can be confirmed whether prepared.
- the step of synthesizing the RNA single strand of the sequence complementary to the sequence of the RNA single strand synthesized in step (1 ') is an independent synthesis process before (1') or (1 ') to ( 5 ') may be performed during any of the steps.
- the RNA single strand synthesized in step (1 ') and the RNA single strand having a complementary sequence may be used in the form of a phosphate group bonded to the 5' end.
- the ligand in the case of a ligand-bound double helix oligo RNA structure, may be used in a form in which the ligand is bound to a hydrophilic material of the double helix oligo RNA structure.
- A is a hydrophilic material and B is a second hydrophobic material;
- S is the sense strand of double-stranded oligo RNA, AS is the antisense strand of double-stranded oligo RNA;
- X and Y are preferably, but not limited to, simple covalent bonds or linker-mediated covalent bonds;
- L refers to a ligand having a property of specifically binding to a receptor that promotes target cell internalization through receptor-mediated endocytosis (RME).
- RNA-polymer structure After the step (4 ''), (5 '') or (6 ''), the preparation is completed and the RNA-polymer structure and complement using the high performance liquid chromatography (HPLC) After separating and purifying the RNA single strand of the normal sequence, MALDI-TOF mass spectrometry can determine whether the desired double-stranded oligo RNA and double-stranded oligo RNA structure was prepared by measuring the molecular weight.
- HPLC high performance liquid chromatography
- the step of synthesizing the RNA single strand of the sequence complementary to the sequence of the RNA single strand synthesized in step (3 '') is an independent synthesis process before (1 '') or (1 ''). It may be performed during any of the steps to (6 '').
- a double-stranded oligo RNA structure in which a ligand of a form in which a hydrophilic material or a second hydrophobic material is bound to the 5 ′ end of the double-stranded oligo RNA sense strand and the antisense strand may be used as shown in Equation 5 below.
- A is a hydrophilic material and B is a second hydrophobic material
- S is the sense strand of double-stranded oligo RNA
- AS is the antisense strand of double-stranded oligo RNA
- X and Y are preferably, but not limited to, simple covalent bonds or linker-mediated covalent bonds
- L refers to a ligand having a property of specifically binding to a receptor that promotes target cell internalization through receptor-mediated endocytosis (RME).
- the reaction product is purified using High Performance Liquid Chromatography (HPLC), and then the molecular weight is increased using a MALDI-TOF mass spectrometer. By measuring, it is possible to confirm whether the double-stranded oligo RNA and double-stranded oligo RNA structure to which the desired ligand is bound are prepared.
- HPLC High Performance Liquid Chromatography
- the step of synthesizing the RNA-second hydrophobic polymer structure having a sequence complementary to the sequence of the RNA single strand synthesized in step (1 ′ '') is an independent synthesis process, step (1 ′ ′′).
- step (1 ′ ′′) After synthesizing the RNA single strand consisting of the RNA single strand of the step (1 '' ') and the complementary sequence in the previous or (1' '') to (4 '' ') stage, the second hydrophobic material is shared. Combining and synthesizing a single strand of the RNA-second hydrophobic polymer structure in which the second hydrophobic material is bound, and then separating it from the solid support.
- the functional group of the said hydrophilic substance may be substituted by another functional group as needed.
- polyethylene glycol (PEG) has a terminal capable of introducing various molecular weights and functional groups, has good affinity in vivo and does not induce an immune response, and increases solubility in water to in vivo. It is very suitable for the preparation of the structure of the present invention because it increases the efficiency of gene transfer in.
- RNA constructs can be used.
- A is a hydrophilic material and B is a second hydrophobic material;
- S is the sense strand of the double helix oligo RNA, and AS is the antisense strand of the double helix oligo RNA;
- X and Y are preferably, but not limited to, simple covalent bonds or linker-mediated covalent bonds;
- L refers to a ligand having a property of specifically binding to a receptor that promotes target cell internalization through receptor-mediated endocytosis (RME).
- the reaction product is purified using High Performance Liquid Chromatography (HPLC) and then subjected to MALDI-TOF mass spectrometry.
- HPLC High Performance Liquid Chromatography
- the step of synthesizing the RNA single strand of the sequence complementary to the sequence of the RNA single strand synthesized in step (1) is an independent synthesis process, before (1 '' '') or (1 '' May be performed during any of the steps '') to (6 '' '').
- step (a) and step (b) does not have to be sequential and may proceed regardless of the order. That is, step (b) may be performed before step (a).
- the double-stranded oligo RNA structure prepared in step (a) may further comprise a ligand.
- the mass ratio of magnetic nanoparticles and SAMiRNA in the SAMiRNA-magnetic nanoparticle complex is preferably 0.01: 1 to 100: 1, more preferably 0.1: 1 to 10: 1.
- the size of the SAMiRNA-magnetic nanoparticle complex is preferably 50 to 300 nm, and the polydispersity index (PDI) of the SAMiRNA-magnetic nanoparticle complex is preferably 0.01 to 0.4, and 0.1 to 0.3. It is even more preferable to have a value of.
- PDI polydispersity index
- the SAMiRNA formation technique can be applied not only to double-stranded oligo RNA, but also to single-stranded oligonucleotides, especially single stranded antisense oligonucleotides (ASOs) having therapeutic purposes. That is, in the double-stranded oligo RNA structure constituting SAMiRNA, a single-stranded oligonucleotide structure including a single stranded antisense oligonucleotide (ASO) instead of the double-stranded oligonucleotide may be used for complex formation with the magnetic nanoparticles.
- ASO single stranded antisense oligonucleotide
- ASO technology breaks down mRNA through a single strand of RNA or DNA Technology that regulates the transfer of information from genes to proteins.
- a base sequence that hybridizes sufficiently complementarily and specifically is selected to achieve a desired expression inhibition of the target protein.
- the binding of ASO is sequence specific to the target gene and thus does not affect the expression of genes other than the target gene.
- ASO technology is not only a useful tool in the analysis of the in vivo role of certain proteins, but also has the potential to be used as a gene therapy for certain diseases. FASEBJ. 9,1288-1296, 1995).
- antagomir one of a new class of single-stranded antisense oligonucleotides, has recently been developed and used to inhibit the function of microRNAs derived from cells.
- Antagonists or microRNA inhibitors chemically synthesized short RNAs, are known to bind complementarily to target microRNAs and inhibit their function.
- it is desirable to have a modified chemical structure, such as 2'methoxy or phosphothioate, antagonists that inhibit the function of miRNA currently associated with various diseases, including cancer, heart and lung fibrosis has been reported (“Silencing of microRNAs in vivo with ‘antagomirs’ ”Nature, Dec.
- Single-stranded antisense oligonucleotides (ASO) in the present invention means all single-stranded oligonucleotides that function to inhibit the expression or activity of specific genes, including antagonists as well as conventional antisense.
- the single-stranded oligonucleotide structure according to the present invention has the structure of Formula 7.
- one of A and B is a hydrophilic material, and the other is a second hydrophobic material;
- ASO is a single stranded antisense oligonucleotide;
- X and Y are preferably each independently covalent bonds mediated by simple covalent bonds or linkers, but are not limited thereto.
- hydrophilic material, the second hydrophobic material, and the simple covalent bond or linker-mediated covalent bond represented by Equation 7 have properties as defined in the SAMiRNA construct using double-stranded oligo RNA described above.
- the ASO preferably contains 10 to 50 oligonucleotides, more preferably 13 to 25 oligonucleotides.
- ODN oligodeoxynucleotide
- the modification is such that the —OH group at the two carbon positions of the sugar structure in one or more nucleotides is —CH 3 (methyl), —OCH 3 , -NH 2 , -F (fluorine), —O-2-methoxyethyl, —O— Propyl, -O-2-methylthioethyl, -O-3-aminopropyl, -O-3-dimethylaminopropyl, -O- N -methylacetamido or -O-dimethylamido Modification by substitution with oxyethyl; Modification in which oxygen in a sugar structure in nucleotides is replaced with sulfur; One or more combinations of nucleotide-to-nucleotide linkages with phosphorothioate or boranophosphophate
- the ASOs usable in the present invention are not particularly limited to those used for therapeutic or research purposes, and ASOs for any genes used or likely to be used for gene therapy or research may be adopted.
- the ASO in the present invention is not only in a perfect match relationship with the desired mRNA, but also in combination with the desired mRNA even if not complementary binding in some sequences translation of such mRNA It is obvious to those skilled in the art that it is possible to use an incomplete complementary (mismatch) relationship that can impair this.
- SAMiRNA-magnetic nanoparticle complexes of the present invention enhance the intracellular delivery of double-stranded oligo RNA, and it is possible to apply this for therapeutic and / or diagnostic purposes of disease models. More specific preparation and characteristics of SAMiRNA and magnetic nanoparticles, cell delivery efficiency and effects will be described in more detail in the following examples.
- the present invention also provides a method for gene therapy and / or diagnosis using the SAMiRNA-magnetic nanoparticle complex. Specifically, the step of synthesizing the double-stranded oligo RNA structure preparing a magnetic nanoparticles and SAMiRNA-magnetic nanoparticle complex coated on the surface of the magnetic material of the first hydrophobic material and the SAMiRNA-magnetic nanoparticle complex into the body It provides a method for the diagnosis and / or treatment of diseases, including cancer and infectious diseases, including the step of.
- the present invention provides compositions for treatment and / or diagnosis comprising SAMiRNA-magnetic nanoparticle complexes.
- the present invention according to the present invention has the advantage that the SAMiRNA-magnetic nanoparticle complex can simultaneously perform treatment and diagnosis.
- the composition of the present invention may further contain one or more pharmaceutically acceptable carriers in addition to the active ingredients described above for administration.
- Pharmaceutically acceptable carriers must be compatible with the active ingredients of the present invention, including saline, sterile water, Ringer's solution, buffered saline, dextrose solution, maltodextrin solution, glycerin, ethanol and one or more of these components
- other conventional additives such as antioxidants, buffers, bacteriostatics, etc. may be added as necessary.
- injectable formulations such as aqueous solutions, suspensions, emulsions, and the like additionally including diluents, dispersants, surfactants, binders and lubricants.
- injectable formulations such as aqueous solutions, suspensions, emulsions, and the like additionally including diluents, dispersants, surfactants, binders and lubricants.
- diluents such as aqueous solutions, suspensions, emulsions, and the like additionally including diluents, dispersants, surfactants, binders and lubricants.
- diluents such as aqueous solutions, suspensions, emulsions, and the like additionally including diluents, dispersants, surfactants, binders and lubricants.
- composition of the present invention may be prepared by containing at least one pharmaceutically active ingredient in addition to the active ingredient described above for administration.
- the pharmaceutical active ingredient included in the composition of the present invention is an anticancer agent, antibiotic, hormone, hormonal antagonist, interleukin, interferon, growth factor, tumor necrosis factor, endotoxin, lymphotoxin, urokinase, streptokinase, tissue plasminogen activator, RNA And at least one selected from the group consisting of degradation inhibitors, alkylphosphocholines, radioisotope labeling agents, surfactants, cardiovascular drugs, gastrointestinal drugs and nervous system drugs.
- compositions of the present invention can be determined by one of ordinary skill in the art based on the severity of the symptoms and illness of a typical patient. It may also be formulated in various forms, such as powders, tablets, capsules, solutions, injections, ointments, syrups, and the like, and may be provided in single-dose or multi-dose containers such as ampoules and bottles.
- the pharmaceutical composition of the present invention can be administered orally or parenterally.
- Routes of administration of the pharmaceutical compositions according to the invention are not limited to, for example, oral, intravenous, intramuscular, intraarterial, intramedullary, intradural, intracardiac, transdermal, subcutaneous, intraperitoneal, intestinal, Sublingual or topical administration is possible.
- compositions of the present invention may be formulated in a suitable formulation using known techniques.
- the dosage of the composition of the present invention varies in the range depending on the weight, age, sex, health condition, diet, time of administration, method, excretion rate and severity of the disease, etc. of the patient, and easily available to those skilled in the art. You can decide.
- the SAMiRNA-magnetic nanoparticle complex was prepared in the form of a complex by preparing a double-stranded oligo RNA structure and magnetic nanoparticles coated with a first hydrophobic material on the surface of the magnetic material, respectively, and then mixing the two materials.
- survivin double helix oligo RNA was used to inhibit survivin.
- Survivin is a protein commonly expressed in most neoplastic tumors or transgenic cell lines that have been tested to date. Survivin is expected to be an important target for anticancer therapy. (Survivin: a new target for anti-cancer therapy. Treat Rev. 2009 Nov; 35 (7): 553-62).
- Survivin double-stranded oligo RNA of the present invention consists of a sense strand described in SEQ ID NO: 1 and the antisense strand complementary thereto, the double-stranded oligo RNA used as a control is sense sense described in SEQ ID NO: Strand and its complementary sequence, the antisense strand.
- the double-stranded oligo RNA used in this example consists of the following nucleotide sequences.
- the double-stranded oligo RNA is connected to a phosphodiester bond forming a DNA skeleton using ⁇ -cyanoethylphosphoamidite (2'tert-butyldimethylsilyl protected ⁇ -cyanoethylphosphoramidite). Double-stranded oligo RNA single strands were synthesized. The synthesis process begins with the nucleoside-bound solid support (CPG) and repeats the process of deblocking, coupling, capping and oxidation, thereby providing the desired sequence. You get RNA.
- CPG nucleoside-bound solid support
- the deblocking step which is the first step of the cycle, removes DMT (4,4'-dimethoxytrityl) by treating 3% trichloroacteic acid with nucleotide-bound solid support (CPG),
- the next step, the coupling step is an oligonucleotide through a binding reaction with a 5'-hydroxyl group formed on a solid support (CPG) in the previous step and a nucleoside phosphoramidite monomer of a desired sequence. The chain is connected.
- the third step blocks the unreacted 5'-hydroxyl group in the binding step to exclude oligonucleotide chains having an undesired nucleotide sequence in the binding process in the next cycle.
- acetic anhydride and N - with the handle-methyl imidazole (N -methylimidazole) and acetylated (acetylation).
- the oxidation step the bond between the 5'-hydroxyl group formed in the coupling step and the phosphoramidite forms a phosphitetriester bond, which is converted into a phosphodiester bond.
- phosphite is changed to phosphate by treating 0.02 M oxidizing solution (0.02 M-I2 in THF / Pyridine / H 2 O).
- 0.02 M oxidizing solution 0.02 M-I2 in THF / Pyridine / H 2 O.
- the synthesis of the single strand of RNA was performed using an RNA synthesizer (384 Synthesizer, BIONEER, Korea).
- the synthesis was carried out using a method of linking phosphodiester bonds forming the RNA backbone structure using ⁇ -cyanoethylphosphoamidite as described above. After proceeding, additionally, polyethylene glycol (POLYETHYLENE GLYCOL, PEG) phosphoramidite was added at the 5 'end to make a double-stranded oligo RNA sense strand of the double-stranded oligo RNA structure.
- polyethylene glycol (POLYETHYLENE GLYCOL, PEG) phosphoramidite was added at the 5 'end to make a double-stranded oligo RNA sense strand of the double-stranded oligo RNA structure.
- the phosphate ester bond forming the RNA backbone structure using ⁇ -cyanoethylphosphoamidite as described above is connected.
- an additional 24 carbon atoms tetradocosane reagent containing disulfide bonds is subjected to general deblocking, coupling, capping, and oxidation.
- the anti-sense strand of the RNA-hydrophobic polymer structure was made by binding to the 5 'end through the process.
- the synthesis was carried out using the method of connecting the phosphate diester bonds forming the RNA backbone structure using ⁇ -cyanoethylphosphoamidite as described above.
- a ligand-bound phosphoramidite or a ligand-bound NHS-binable ligand is bound.
- a ligand-bound RNA-second hydrophobic polymer structure sense strand by binding a ligand to the end of the polyethylene glycol (PEG).
- the antisense strand to be annealed with the ligand-bonded double-stranded oligo RNA structure it was prepared by the same method as the aforementioned double-stranded oligo RNA structure antisense strand.
- RNA and RNA-polymer constructs (RNA-hydrophilic polymer construct sense strand, RNA-hydrophobic) were synthesized by treating 28% (v / v) ammonia in a 60 ° C water bath. After removing the polymer construct antisense strand and ligand-bound RNA-hydrophilic polymer construct sense strand) from the solid support (CPG), the protective residue was removed by a deprotection reaction.
- Oligonucleotide is protected residue removal double-helix RNA oligonucleotide and double-stranded RNA structure at the 70 yen °C oven-methylpyrrolidone (N -methylpyrolidon), triethyl amine (triethylamine) and triethylaminetrihydrofluoride dihydro flow lead (triethylaminetrihydrofluoride) was treated with a volume ratio of 10: 3: 4 to remove 2 'TBDMS (tert-butyldimethylsilyl).
- RNA-polymer construct single strand and the ligand of the base sequence to be synthesized match the RNA-polymer construct single strand to which the ligand was bound.
- Example 1-2 Preparation of magnetic nanoparticles in which the first hydrophobic material is coated on the surface of the magnetic material
- Magnetic nanoparticles coated with the first hydrophobic material on the surface of the magnetic material include: i) reacting iron chloride dissolved in water with sodium oleate dissolved in a solvent mixture comprising ethanol, distilled water and nucleic acids to form oleic acid complexes; ii) Iron oxide nanoparticles were prepared by completely degrading the oleic acid iron complex through a method including heating the oleic acid iron complex to add a dehydrated octadecene and oleic acid mixture in an inert environment to produce nanoparticles.
- the solution containing the nanoparticles produced by the reaction was cooled at room temperature, and the resultant was repeatedly washed three times by centrifugation and supernatant removal by adding excess ethanol to the residue. Ethanol contained was removed by vacuum drying. The resulting product was easily redispersed in nucleic acid to produce the desired iron nanoparticles (see Korean Patent Publication No. 2007-0102672).
- Magnetic nanoparticles coated with the double-stranded oligo RNA structure and the first hydrophobic material on the surface of the magnetic material have the magnetic nanoparticles as nuclei due to hydrophobic interaction between the second hydrophobic material bonded to one end of the double-stranded oligo RNA structure.
- SAMiRNA-magnetic nanoparticle complex see FIG. 1.
- the double-stranded oligo RNA structure prepared in Example 1-1 and the magnetic nanoparticles coated with the first hydrophobic material prepared in Example 1-2 on the surface of the magnetic material were SAMiRNA-magnetic nano in homogenized form by ultrasonic disperser. It was made into a particle composite.
- 1.5 mg of the double-stranded oligo RNA structure was dissolved in Dulbecco's Phosphate Buffered Saline (DPBS) 2, followed by the addition of magnetic nanoparticles (20 nm, 1 wt%, in hexane) 200.
- DPBS Dulbecco's Phosphate Buffered Saline
- Example 2-1 Measurement of particle size and polydispersity index (PDI) of SAMiRNA-magnetic nanoparticle complex
- the size of the nanoparticles was measured by zeta-potential measurement.
- the SAMiRNA-magnetic nanoparticle complexes prepared in Examples 1-3 were measured in size with a zeta potential meter (Nano-ZS, MALVERN, UK).
- the refractive index of the material was 1.454, and the absorption index was 1.454. It was set as 0.001, and it measured by inputting the temperature of 25 degreeC of water which is a solvent, and the viscosity and refractive index accordingly.
- One measurement consisted of a size measurement consisting of 20 repetitions, which were repeated three times.
- the size of the SAMiRNA-magnetic nanoparticle complex was observed to be less than 100 nm in size and polydispersity index (PDI) value of less than 0.3 (see FIG. 2).
- the nanoparticles form nanoparticles of relatively uniform size, which implies endocytosis. Large enough to be taken into the cell through (Kenneth A. Dawson et al. Nature nanotechnology 4: 84-85, 2009).
- the SAMiRNA-magnetic nanoparticle complex has a structure in which magnetic nanoparticles are located inside the particle.
- the SAMiRNA-magnetic nanoparticle complex is formed by interaction between the first hydrophobic material coated on the magnetic nanoparticle and the second hydrophobic material of the double-stranded oligo RNA structure. As the structure of the magnetic nanoparticle composite was stabilized, it was confirmed that a relatively small and uniform size was formed.
- the form of the SAMiRNA-magnetic nanoparticle complexes was observed through a transmission electron microscope (TEM).
- the SAMiRNA-magnetic nanoparticle complexes prepared in Examples 1-3 were observed by homogenization. It was confirmed that the nanoparticles observed through the TEM formed nanoparticles well to a degree similar to the size of the nanoparticles measured in Example 2-1, and only the magnetic nanoparticles having the first hydrophobic material coated on the surface of the magnetic material were observed. Unlike one photograph, it was confirmed that a surface made of a double helix oligo RNA structure was additionally formed on the surface of the magnetic nanoparticles (see FIG. 3).
- the SAMiRNA-magnetic nanoparticle complex prepared in Examples 1-3 was used to transform human uterine cancer cell line (HeLa), which is a tumor cell line, and the expression pattern of survivin gene, which is a target gene, in the transformed tumor cell line. Analyzed.
- HeLa human uterine cancer cell line
- survivin gene which is a target gene
- HeLa Human uterine cancer cells obtained from the American Type Culture Collection (ATCC) were 10% (v / v) fetal bovine serum, penicillin in EMEM culture medium (ATCC-formulated Eagle's Minimum Essential Medium, USA). /, Streptomycin 100 / was added, and cultured at 37 ° C under 5% (v / v) CO 2 .
- Example 3-1 The tumor cell lines cultured in Example 3-1 were incubated in EMEM culture medium for 18 hours in 6-well plates at 1.3 ⁇ 10 5 per well under the conditions of Example 3-1, and then the medium was removed. Opti-MEM medium was dispensed.
- SAMiRNA-magnetic nanoparticle complexes prepared in Examples 1-3 were added to Opti-MEM medium 100 to prepare a SAMiRNA-magnetic nanoparticle complex transformation solution. Then, each well of the tumor cell line to which Opti-MEM was dispensed was treated with a solution for transformation at a concentration of 100 to 200 nM, respectively, and for a total of 48 hours at 37 ° C. under 5% (v / v) CO 2 . Incubated.
- the experimental group treated with the SAMiRNA-magnetic nanoparticle complex containing the double-stranded oligo RNA of SEQ ID NO: 1 was included in the nanoparticle compared to the SAMiRNA-magnetic nanoparticle complex containing the double-stranded oligo RNA of SEQ ID NO: 2 Expression of survivin mRNA, a target gene of double-stranded oligo RNA, was inhibited.
- Rat having a tumor consisting of KB cell line, which is a human oral cancer epithelial cell, for confirming the possibility of diagnosis of magnetic resonance imaging in in vivo conditions of the SAMiRNA-magnetic nanoparticle complex prepared in the same manner as in Example 1-3 was administered, and diagnosis of cancer was confirmed by MRI.
- KB cell lines cultured in Example 3-1 were administered to both subcutaneous tissues of the back region of 5 week-old nude mice (BALB / C nu) by 1 ⁇ 10 6 to subcutaneous injection to induce the growth of two tumor tissues. Tumor long axis and short axis length were measured at intervals of 2 days after administration, and tumor growth was observed. It was confirmed that tumors grew at about 200 to 350 mm 3 at 2 weeks after administration.
- the SAMiRNA-magnetic nanoparticle complexes prepared in Examples 1-3 in the KB xenograft model prepared in Example 4-1 were intratumored in amounts of (left) 300 and (right) 30 in both cancer tissues, respectively.
- MRI was performed (T4.7 MRI, Bruker, Germany).
- the image signal of the cancer tissue was displayed in black at the tumor site administered 300 to indicate the presence of the cancer tissue.
- the SAMiRNA-magnetic nanoparticle complex according to the present invention exhibits an excellent therapeutic effect due to increased cell delivery efficiency due to improved biostable stability and homogeneous nanoparticle size of the double-stranded oligo RNA, and for diagnostic purposes due to the characteristics of the magnetic nanoparticles. Is also possible. That is, it can be used for so-called theragnosis, which can be simultaneously treated and diagnosed, and thus, a new type of double-stranded oligo RNA delivery system for diagnosing and treating diseases, including basic research for biotechnology and the pharmaceutical industry. Across various industries It can be very useful.
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Description
Claims (35)
- 제1소수성 물질이 자성물질의 표면에 코팅된 자성나노입자; 및제2소수성 물질, 이중나선 올리고 RNA 및 친수성 물질이 결합된 이중나선 올리고 RNA 구조체;를 포함하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, 상기 제1소수성 물질과 제2소수성 물질은 서로 동일하거나 또는 서로 다른 물질인 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, 제1소수성 물질과 제2소수성 물질의 소수성 상호작용에 의해 자성나노입자는 핵(core)에 위치하며 이중나선 올리고 RNA 구조체는 바깥쪽(shell)에 위치하는 구조인 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, SAMiRNA-자성나노입자 복합체에서의 자성나노입자 및 이중나선 올리고 RNA 구조체의 질량비율은 0.01:1 내지 100:1 인 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, 상기 SAMiRNA-자성나노입자 복합체의 직경은 50 내지 300 nm인 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, SAMiRNA-자성나노입자 복합체의 다분산지수(polydispersity index; PDI)는 0.01 내지 0.4 인 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, 상기 자성물질의 직경은 1 내지 200 nm인 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, 상기 자성물질은 자성금속 또는 자성금속 산화물인 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제8항에 있어서, 상기 자성 금속은 철족금속 원소(Fe, Ni, Co), 희토류 원소(La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu), 화폐금속 원소(Cu, Ag, Au), 아연족 원소(Zn, Cd, Hg), 알루미늄족원소(Al, Ga, In, Tl), 알칼리토금속 원소(Ca, Sr, Ba, Ra) 및 백금족 원소(Pt, Pd)에서 하나 이상 선택된 금속 또는 이들의 합금으로 이루어진 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제8항에 있어서, 상기 자성금속 산화물(magnetic metal material)은 철족금속 원소(Fe, Ni, Co), 희토류 원소(La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu), 화폐금속 원소(Cu, Ag, Au), 아연족 원소(Zn, Cd, Hg), 알루미늄족원소(Al, Ga, In, Tl), 알칼리토금속 원소(Ca, Sr, Ba, Ra) 및 백금족 원소(Pt, Pd)에서 하나 이상 선택된 금속의 산화물 또는 이들의 합금의 산화물을 포함하는 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, 상기 자성나노입자의 제1소수성 물질은 C6 내지 C25 방향족 화합물, C6 내지 C25 에테르, C6 내지 C25 지방족 탄화수소 및 C6 내지 C25 아민 군에서 선택되는 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, 상기 이중나선 올리고 RNA 구조체는 하기 식1의 구조로 이루어진 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.식 1A-X-R-Y-B(상기 식1에서 A 와 B중 하나는 친수성물질이고, 다른 하나는 제2소수성 물질이며; X와 Y는 서로 독립적으로 단순 공유결합 또는 링커가 매개된 공유결합이며; R은 이중나선 올리고 RNA를 의미한다.)
- 제1항에 있어서, 상기 이중나선 올리고 RNA는 19 내지 31 개의 뉴클레오티드로 구성되는 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제12항에 있어서, 상기 공유결합은 비분해성 결합 또는 분해성 결합인 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제16항에 있어서, 상기 비분해성 결합은 아미드 결합(amide bond) 또는 인산화 결합인 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제16항에 있어서, 상기 분해성 결합은 이황화 결합, 산분해성 결합, 에스테르결합, 안하이드라이드 결합, 생분해성 결합 또는 효소 분해성 결합 중에서 선택되는 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, 상기 제2소수성 물질의 분자량은 100 내지 2,000임을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, 상기 제2소수성 물질은 스테로이드(steroid) 유도체, 글리세라이드(glyceride) 유도체, 글리세롤 에테르(glycerol ether), 폴리프로필렌 글리콜(polypropylene glycol), C12 내지 C50의 불포화 또는 포화 탄화수소(hydrocarbon), 디아실포스파티딜콜린(diacylphosphatidylcholine), 지방산(fatty acid), 인질(phospholipid), 리포폴리아민(lipopolyamine)의 군에서 선택되는 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제20항에 있어서, 상기 스테로이드(steroid) 유도체는 콜레스테롤, 콜리스탄올, 콜산, 콜리스테릴포르메이트, 코테스타닐모르메이트 및 콜리스타닐 아민 군에서 선택되는 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제20항에 있어서, 상기 글리세라이드 유도체는 모노-, 디- 및 트리-글리세라이드에서 선택되는 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, 상기 친수성 물질의 분자량은 1,000 내지 10,000인 비 이온성 고분자 화합물인 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, 상기 친수성 물질은 폴리에틸렌 글리콜(polyethylene glycol), 폴리비닐피롤리돈(polyvinylpyrolidone), 및 폴리옥사졸린(polyoxalzoline)으로 구성된 군에서 선택되는 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1항에 있어서, 이중나선 올리고 RNA 구조체의 친수성 물질에 리간드가 결합된 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제25항에 있어서, 상기 리간드(ligand)는 타겟 특이적으로 결합하여 수용체 매개 내포작용(receptor-mediated endocytosis, RME)을 하는 타겟(target) 특이적 항체, 앱타머(aptamer), 펩타이드 또는 수용체 특이적 화학물질로 이루어진 군에서 선택되는 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제25항에 있어서, 상기 수용체 특이적 화학물질은 엽산(Folate), N-아세틸갈락토사민, 만노스 (mannose)에서 선택되는 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- 제1소수성 물질이 자성물질의 표면에 코팅된 자성나노입자; 및제2소수성 물질, 단일가닥 안티센스 올리고뉴클레오티드(ASO) 및 친수성 물질이 결합된 단일나선 올리고뉴클레오티드 구조체;를 포함하는 SAMiRNA-자성나노입자 복합체.
- 제28항에 있어서, 상기 단일나선 올리고뉴클레오티드 구조체는 식7의 구조로 이루어진 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.식 7A-X-ASO-Y-B상기 식7에서 A와 B중 하나는 친수성 물질이며, 다른 하나는 제2소수성 물질이고; ASO은 단일가닥 안티센스 올리고뉴클레오티드이며; X와 Y는 각각 독립적으로 단순 공유결합 또는 링커가 매개된 공유결합을 의미한다.
- 제28항에 있어서, 상기 ASO는 10 내지 50 개의 올리고뉴클레오티드로 구성되는 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체.
- (1) 친수성 물질 및 제2소수성 물질이 결합된 이중나선 올리고 RNA 구조체를 제조하는 단계;(2) 제1소수성 물질이 자성물질의 표면에 코팅된 자성나노입자를 제조하는 단계;(3) 상기 이중나선 올리고 RNA 구조체로 이루어진 SAMiRNA와 제1소수성 물질이 자성물질의 표면에 코팅된 자성나노입자를 혼합시키는 단계;를 포함하는 SAMiRNA-자성나노입자 복합체의 제조방법.
- 제31항에 있어서, 상기 이중나선 올리고 RNA 구조체의 친수성 물질에 리간드를 결합시키는 단계를 더 포함하는 것을 특징으로 하는 SAMiRNA-자성나노입자 복합체의 제조방법.
- 제1항 내지 제30항 중 어느 한 항에 따른 SAMiRNA-자성나노입자 복합체를 포함하는 약제학적 조성물.
- 제1항 내지 제30항 중 어느 한 항에 따른 SAMiRNA-자성나노입자 복합체를 포함하는 진단용 조성물.
- 제1항 내지 제30항 중 어느 한 항에 따른 SAMiRNA-자성나노입자 복합체를 포함하는 진단 및 치료를 동시에 수행할 수 있는 조성물.
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| US14/372,211 US9649388B2 (en) | 2012-01-18 | 2013-01-17 | Magnetic nanoparticle-samirna complex and method for preparing same |
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| TAEEOK KIM: "nano-biotechnology", 2009, BIOTECH POLICY RESEARCH CENTER |
| TOSHIHIRO MATSUO ET AL., J. BIOMEDICAL MATERIALS RESEARCH PART A, vol. 66A, no. 4, 2003, pages 747 - 754 |
| VEISEH, O. ET AL.: "Cell transcytosing poly-arginine coated magnetic nanovector for safe and effective siRNA delivery", BIOMATERIALS, vol. 32, 2011, pages 5717 - 5725, XP028375332 * |
| VEISEH, O. ET AL.: "Chlorotoxin bound magnetic nanovector tailored for cancer cell targeting, imaging, and siRNA delivery", BIOMATERIALS, vol. 31, 2010, pages 8032 - 8042, XP055014008 * |
| XIAOLIZHENG ET AL., INTERNATIONAL J.PHARMACEUTICS, vol. 366, 2009, pages 211 - 217 |
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| US10316313B2 (en) | 2011-03-10 | 2019-06-11 | Cornell University | Mesoporous catalysts of magnetic nanoparticles and free-radical-producing enzymes, and methods of use |
| US9597672B2 (en) | 2011-03-10 | 2017-03-21 | Cornell University | Mesoporous catalysts of magnetic nanoparticles and free-radical-producing enzymes, and methods of use |
| EP2801615A4 (en) * | 2012-01-05 | 2015-08-19 | Bioneer Corp | HIGHLY EFFICIENT NANOPARTICULAR DOUBLE HELIX OLIGO RNA STRUCTURE AND METHOD FOR THE PRODUCTION THEREOF |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20130085004A (ko) | 2013-07-26 |
| JP5906327B2 (ja) | 2016-04-20 |
| EP2805713B1 (en) | 2018-10-10 |
| JP2015504089A (ja) | 2015-02-05 |
| CN104244928B (zh) | 2016-08-31 |
| EP2805713A4 (en) | 2015-08-26 |
| KR101629233B1 (ko) | 2016-06-10 |
| US20150056145A1 (en) | 2015-02-26 |
| EP2805713A1 (en) | 2014-11-26 |
| US9649388B2 (en) | 2017-05-16 |
| CN104244928A (zh) | 2014-12-24 |
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