WO2015002512A1 - 뎅기 바이러스 특이적 siRNA, 그러한 siRNA를 포함하는 이중나선 올리고 RNA 구조체 및 이를 포함하는 뎅기 바이러스 증식 억제용 조성물 - Google Patents
뎅기 바이러스 특이적 siRNA, 그러한 siRNA를 포함하는 이중나선 올리고 RNA 구조체 및 이를 포함하는 뎅기 바이러스 증식 억제용 조성물 Download PDFInfo
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Definitions
- the present invention relates to a dengue virus-specific siRNA, a double helix oligo RNA structure comprising such a siRNA and a composition for inhibiting dengue virus growth comprising the same, wherein the double helix oligo RNA structure is a double helix in order to be efficiently delivered into cells
- Both ends of the RNA have a structure in which a hydrophilic material and a hydrophobic material are bonded by using simple covalent bonds or linker-mediated covalent bonds, and hydrophobic interaction of the double-stranded oligo RNA structures in an aqueous solution. Can be converted into nanoparticle form by action.
- the siRNA included in the double helix oligo RNA structure is preferably siRNA specific to dengue virus.
- the present invention also relates to a method for producing the double-stranded oligo RNA structure and a pharmaceutical composition for inhibiting dengue virus growth and preventing and treating dengue virus infection comprising the double-stranded oligo RNA structure.
- Dengue virus belongs to the Flaviviridae family, which has a single stranded RNA and a single envelope with a diameter of 30 nm, and is a member of the Flaviviridae family. It is one of the diseases that occur. Dengue fever is transmitted by a mosquito or infected person, and high fever and rash with muscle pain and joint pain are often caused, and bleeding sometimes occurs, with dengue hemorrhagic fever. The risk is greatly increased. Also, lifelong immunity against infected dengue virus types is prevented, but not protected against other virus types, so people living in epidemic areas can develop all four types of dengue virus infection during their lifetime.
- Dengue virus shows four serotypes and has a genome size of about 11 kb.
- the dengue virus genome is translated into a single polyprotein, which is then cleaved by a host or viral endogenous protease and divided into functional proteins.
- RNA interference interfering RNA
- 'RNAi' interfering RNA
- RNA is converted into RNA, hereinafter called siRNA, and siRNA binds to an RNA-induced silencing complex (RISC), whereby the guide (antisense) strand recognizes and degrades the target mRNA to sequence-express the expression of the target gene.
- RISC RNA-induced silencing complex
- siRNA against the same target gene is superior to antisense oligonucleotides (ASOs) in inhibiting mRNA expression in vivo and in vitro , and the effect lasts for a long time.
- ASOs antisense oligonucleotides
- the siRNA action mechanism complementarily binds to the target mRNA and regulates the expression of the target gene in a sequence-specific manner, thus making it possible to apply targets to conventional antibody-based or small molecule drugs.
- siRNAs must be effectively delivered to target cells by improving their stability and improving cell delivery efficiency in order for siRNAs to be developed as therapeutic agents (Harnessing in vivo siRNAs). delivery for drug discovery and therapeutic development.Drug Discov Today. 2006 Jan; 11 (1-2): 67-73).
- nucleotides or skeletons of the siRNA are modified to have nuclease resistance or viral vectors, liposomes or nanoparticles, etc. Research into the use of the carrier is actively attempted.
- RNAi oligonucleotides Delivery systems using viral vectors, such as adenoviruses and retroviruses, have high transfection efficacy, but high immunogenicity and oncogenicity.
- non-viral delivery systems containing nanoparticles have lower cell delivery efficiency than viral delivery systems, but have high stability in vivo and target specificity. It is possible to deliver the RNAi oligonucleotides to the cells or tissues and improve the delivery effect such as uptake and internalization, as well as safety with little cytotoxicity and immune stimulation. This has the advantage of being high and is currently being evaluated as a viable delivery method compared to viral delivery systems (Nonviral delivery of synthetic siRNA s in vivo. J Clin Invest. 2007 December 3; 117 (12): 3623-3632) .
- a method of using a nanocarrier is used to form nanoparticles by using various polymers such as liposomes and cationic polymer complexes, and siRNA is added to these nanoparticles, that is, nanocarriers. It has a form to be supported and delivered to the cell.
- polymer nanoparticles, polymer micelles, lipoplexes, etc. are mainly used.
- lipoplexes are composed of cationic lipids. It interacts with the anionic lipids of the endosome of endosome, induces the destabilizing effect of the endosome and delivers it into cells (Proc. Natl. Acad. Sci. 15; 93 (21): 11493-8, 1996).
- siRNAs in the form of conjugated polymer compounds such as polyethylene glycol (PEG)
- PEG polyethylene glycol
- micelles composed of polymer complexes are extremely uniform in size and spontaneously formed, compared to other systems used as drug delivery vehicles, such as microspheres or nanoparticles. There is an advantage that it is easy to ensure the quality control and reproducibility of the formulation.
- siRNA conjugate conjugated to a technique for securing the stability of the siRNA and efficient cell membrane permeability has been developed (Korean Patent No. 883471).
- PEGylation polyethylene glycol
- the chemical modification of siRNA and the conjugation of polyethylene glycol (PEGylation) alone (PEGylation) still have the disadvantages of low stability in vivo and delivery to the target organ is not smooth.
- a double-stranded oligo RNA structure in which a hydrophilic and hydrophobic material is bound to oligonucleotides, especially a double-stranded oligo RNA such as siRNA.
- Self-assembled nanoparticles called Micelle Inhibitory RNA (see Korean Patent No. 1224828), SAMiRNA TM technology yields very small and homogenous nanoparticles compared to conventional delivery technologies. It has the advantage of being able to.
- polyethylene glycol is used as a hydrophilic substance, which is a synthetic polymer, which is often used to increase the solubility of pharmaceuticals, especially proteins, and to control pharmacokinetics.
- PEG polyethylene glycol
- one batch of polymers is made up of the sum of different numbers of monomers, resulting in a Gaussian shape with a molecular weight of polydisperse (Mw / Mn). Expresses the degree of homogeneity of the substance.
- PEG exhibits a polydispersity index of about 1.01 when the molecular weight is low (3 to 5 kDa) and a high polydispersity index of about 1.2 when the molecular weight is high (20 kDa) .
- the higher the molecular weight, the lower the homogeneity of the material. FM Veronese.Peptide and protein PEGylation: a review of problems and solutions.Biomaterials (2001) 22: 405-417). Therefore, when PEG is bound to pharmaceuticals, the polydispersity of PEG is reflected in the conjugates, which makes it difficult to verify a single substance. Therefore, the production of substances having low polydispersity index through the synthesis and purification of PEG is improved.
- the hydrophilic material of the double-stranded RNA structure constituting SAMiRNATM is a uniform 1 to 15 monomers having a constant molecular weight and linkers as necessary
- a new type of carrier technology having a smaller size and dramatically improved polydispersity compared to the existing SAMiRNA TM This was developed.
- siRNA candidate group derived from the conserved sequence of dengue virus inhibits the proliferation of all dengue virus serotypes with excellent efficiency, and has completed the present invention.
- an object of the present invention is a novel siRNA and a double helix oligo RNA construct comprising the same, which are specific for the dengue virus of serotypes 1, 2, 3 and 4 and capable of inhibiting its expression with very high efficiency, and such a double helix
- a novel siRNA and a double helix oligo RNA construct comprising the same, which are specific for the dengue virus of serotypes 1, 2, 3 and 4 and capable of inhibiting its expression with very high efficiency, and such a double helix
- Another object of the present invention is to inhibit dengue virus growth and / or ultimately to prevent and treat dengue virus infection comprising the dengue virus-specific siRNA or a double-stranded oligo RNA structure comprising such siRNA as an active ingredient It is to provide a pharmaceutical composition.
- Still another object of the present invention is to provide a method for propagating dengue virus and / or ultimately preventing and treating a dengue virus infection using the dengue virus specific siRNA or a double-stranded oligo RNA structure comprising such siRNA. will be.
- a dengue virus specific composition comprising a first oligonucleotide having a sense strand having any one sequence selected from SEQ ID NOs: 1 to 88 and a second oligonucleotide having an antisense strand having a complementary sequence thereto.
- siRNA siRNA
- the siRNA in the present invention is a concept including all substances having a general RNAi (RNA interference) action, the dengue virus-specific siRNA is to include a dengue virus-specific shRNA, etc. It is common knowledge in the art It is self-evident to those who have.
- SEQ ID NO: 1 to SEQ ID NO: 88 is the sense strand sequence of the siRNA specific to dengue virus, targeting the conserved region present in all dengue virus serotypes, inhibits the proliferation of all dengue virus regardless of serotypes Ultimately, it has the characteristics of preventing and / or treating a dengue virus infection.
- SiRNA according to the present invention is preferably SEQ ID NO: 4 to 8, 13, 16, 20, 22, 23, 29, 32, 34, 39 to 42, 44 to 47, 51, 52, 70 to 72, 76, 77 And a sense strand of the dengue virus specific siRNA according to any one of Nos. 80 to 82,
- Most preferably it comprises a sense strand of a dengue virus specific siRNA according to any one of SEQ ID NOs: 51, 52, 71 and 82.
- the sense strand or antisense strand of the siRNA according to the present invention is preferably composed of 19 to 31 nucleotides, and includes the sense strand of any one of the siRNAs selected from SEQ ID NO: 1 to SEQ ID NO: 88 and antisense strands complementary thereto. .
- the sense strand or antisense strand of the siRNA according to the invention is characterized in that it is a dengue virus specific siRNA, which is capable of binding to the sequences of serotypes 1, 2, 3 and 4 dengue virus.
- Dengue virus-specific siRNA provided in the present invention has a base sequence designed to complementarily bind to the mRNA encoding the gene, it is characterized in that it can effectively suppress the expression of the gene.
- the siRNA may include an overhang, which is a structure having one or more unpaired nucleotides at the 3 ′ end of the siRNA,
- Modifications of the first or second oligonucleotides constituting the siRNA may comprise -OH groups at the 2 ′ carbon position of the sugar structure in one or more nucleotides, -CH 3 (methyl), -OCH 3 (methoxy), -NH 2 , -F (Fluorine), -O-2-methoxyethyl -O-propyl, -O-2-methylthioethyl, -O-3-aminopropyl, -O-3-dimethylaminopropyl,- Modification by substitution with ON-methylacetamido or -O-dimethylamidooxyethyl; Modification in which oxygen in a sugar structure in nucleotides is replaced with sulfur; Or a combination of one or more modifications selected from nucleotide-linked phosphorot
- Dengue virus-specific siRNA provided in the present invention not only reduces the expression of the gene, but also significantly inhibits the expression of the protein, thereby inhibiting the proliferation of progeny in the cell culture.
- a conjugate in which a hydrophilic material and a hydrophobic material are conjugated at both ends of a siRNA for efficient delivery and stability of a dengue virus-specific siRNA in vivo.
- siRNA conjugates in which a hydrophilic substance and a hydrophobic substance are bound to siRNA form self-assembled nanoparticles by hydrophobic interaction of hydrophobic substances (see Korean Patent Registration No. 1224828).
- the delivery efficiency and stability in the body extremely excellent, but also the particle size is uniform, so that the QC (Quality Control) is easy, so there is an advantage that the manufacturing process as a drug is simple.
- the double-stranded oligo RNA structure comprising the dengue virus-specific siRNA according to the present invention preferably has a structure as shown in the following structural formula (1).
- A represents a hydrophilic substance
- B represents a hydrophobic substance
- X and Y each independently represent a simple covalent bond or a linker-mediated covalent bond
- R represents a dengue virus-specific siRNA.
- the double-stranded oligo RNA structure comprising the dengue virus specific siRNA according to the present invention has the structure of the following structural formula (2).
- A, B, X and Y are the same as the definitions in the above formula (1), S means the sense strand of the dengue virus-specific siRNA, AS means the antisense strand of the dengue virus-specific siRNA .
- the double-stranded oligo RNA structure comprising dengue virus specific siRNA has the structure of the following structural formula (3) or (4).
- One to three phosphate groups may be bonded to the 5 ′ end of the antisense strand of the double-stranded oligo RNA structure comprising the dengue virus-specific siRNA in the above formulas (1) to (4), and siRNA It is apparent to those skilled in the art that shRNA may be used instead.
- the hydrophilic materials in the above formulas (1) to (4) are preferably cationic or nonionic polymer materials having a molecular weight of 200 to 10,000, and more preferably 1,000 to 2,000 nonionic polymer materials.
- nonionic hydrophilic polymer compounds such as polyethylene glycol, polyvinylpyrrolidone, and polyoxazoline as the hydrophilic polymer compound, but is not necessarily limited thereto.
- the hydrophilic material (A) in the formulas (1) to (4) may be used in the form of a hydrophilic material block in the form of the following formula (5) or formula (6), which block
- n in Structural Formula (5) or Structural Formula (6) it is possible to greatly improve the problem due to polydispersity that may occur when using a general synthetic polymer material or the like.
- a ' is a hydrophilic monomer
- J is a linker that connects between m hydrophilic monomers or m hydrophilic monomers and siRNA
- m is 1 to 15
- An integer, n, means an integer of 1 to 10
- the repeating unit represented by (A ' m -J) or (J-A' m ) corresponds to the basic unit of the hydrophilic material block.
- the double-stranded oligo RNA structure comprising the dengue virus-specific siRNA according to the present invention is a structure such as the following formula (7) or (8) It can have
- the hydrophilic material monomer (A ') can be used without limitation as long as it meets the object of the present invention among monomers of the nonionic hydrophilic polymer, and preferably the compound (Table 1) 1) to the compound (3) is selected, the monomer, more preferably a monomer of the compound (1) may be used in which, G is preferably in the compound (1) may be selected from CH 2, O, S and NH.
- the monomer represented by the compound (1) can introduce various functional groups, and has excellent bio-compatibility such as good in vivo affinity and induces an immune response, It has the advantage of increasing the in vivo stability of the siRNA included in the structure according to the structure (7) or the structure (8) and the delivery efficiency, which is very suitable for the preparation of the structure according to the present invention.
- the hydrophilic substance (hydrophilic substance block) in Structural Formulas (5) to (8) has a total molecular weight in the range of 1,000 to 2,000.
- hexaethylene glycol according to compound (1) in the formulas (7) and (8) ie, a substance in which G is O and m is 6, hexaethylene glycol spacer ( Since the molecular weight of the spacer) is 344, it is preferable that the number of repetitions n is 3 to 5.
- the present invention if necessary, repeating units of the hydrophilic group represented by (A ' m -J) or (J-A' m ) n in the formulas (5) and (6), that is, a hydrophilic material block It can be used as an appropriate number denoted by n.
- the hydrophilic material monomer A 'and the linker J included in each of the hydrophilic material blocks may be the same as or different from each of the hydrophilic material blocks independently.
- the first block contains the hydrophilic monomer according to compound (1)
- the second block contains the hydrophilic monomer according to compound (2)
- the third block contains Other hydrophilic material monomers may be used for every hydrophilic material block, such as a hydrophilic material monomer according to compound (3), and any hydrophilic material monomer selected from compounds (1) to (3) may be used for every hydrophilic material block.
- One hydrophilic monomer may equally be used.
- the linker that mediates the binding of the hydrophilic material monomer may be the same linker for each hydrophilic material block, or different linkers may be used for each hydrophilic material block.
- the linker (J) is preferably selected from the group consisting of PO 3 ⁇ , SO 3, and CO 2 , but is not limited thereto.
- the linker (J) may meet the object of the present invention according to the monomer of the hydrophilic material used. As long as any linker can be used, it will be apparent to those skilled in the art.
- hydrophobic substances (B) in the above formulas (1) to (4), (7) and (8) are represented by the formulas (1) to (4), (7) and (7) through hydrophobic interactions. It serves to form a nanoparticle consisting of the oligonucleotide structure according to 8).
- the hydrophobic material has a molecular weight of 250 to 1,000, a steroid derivative, a glyceride derivative, a glycerol ether, a polypropylene glycol, an unsaturated of C 12 to C 50 or Saturated hydrocarbons, diacylphosphatidylcholine, fatty acids, phospholipids, lipopolyamines, and the like may be used, but are not limited thereto, and may be used as long as they meet the object of the present invention. It is obvious to those skilled in the art that hydrophobic materials can also be used.
- 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-glyceride and the like, wherein the fatty acid of the glyceride is preferably C 12 to C 50 unsaturated or saturated fatty acid.
- saturated or unsaturated hydrocarbons or cholesterols are preferable in that they have an advantage of being easily bonded in the synthesis step of the oligonucleotide structure according to the present invention, and tetramethyl containing C 24 hydrocarbons, especially disulfide bonds, is preferable.
- dodosan tetradocosane
- the hydrophobic material is bound to the distal end of the hydrophilic material and may be bonded at any position of the sense strand or the antisense strand of the double stranded oligo.
- the hydrophilic or hydrophobic material and the dengue virus specific siRNA in the structural formulas (1) to (4) in the structural formulas (7) and (8) according to the present invention are simple covalent bonds or linker-mediated covalent bonds (X or Y). Combined by).
- the linker that mediates the covalent bond is not particularly limited as long as it provides covalent bonds at the ends of the hydrophilic material or the hydrophobic material and the dengue virus-specific siRNA, and can be decomposed in a specific environment as necessary.
- the linker may be used any compound that binds to activate dengue virus-specific siRNA and / or hydrophilic material (or hydrophobic material) during the preparation of the double-stranded oligo RNA structure according to the present invention.
- the covalent bonds may be either non-degradable bonds or degradable bonds.
- the non-degradable bonds include amide bonds or phosphorylation bonds
- the degradable bonds include disulfide bonds, acid decomposable bonds, ester bonds, anhydride bonds, biodegradable bonds or enzymatic bonds, but are not limited thereto. .
- siRNA represented by R (or S and AS) in the above formulas (1) to (4), formula (7) and formula (8) is a siRNA having a characteristic that can specifically bind dengue virus All of them can be used without limitation, and the present invention preferably comprises a sense strand comprising any sequence selected from SEQ ID NO: 1 to SEQ ID NO: 88 and an antisense strand having a complementary sequence thereto.
- SiRNA according to the present invention is preferably SEQ ID NO: 4 to 8, 13, 16, 20, 22, 23, 29, 32, 34, 39 to 42, 44 to 47, 51, 52, 70 to 72, 76, 77 And a sense strand of the dengue virus specific siRNA according to any one of Nos. 80 to 82,
- Most preferably it comprises a sense strand of a dengue virus specific siRNA according to any one of SEQ ID NOs: 51, 52, 71 and 82.
- the present invention also provides a double-stranded oligo RNA structure comprising a dengue virus-specific siRNA according to the present invention, wherein an amine group or a polyhistidine group is additionally introduced at the opposite end portion of the structure in which the hydrophilic substance is bound to the siRNA. Can be.
- This is for facilitating intracellular introduction and endosomal escape of a carrier comprising a double-stranded oligo RNA construct comprising a dengue virus specific siRNA according to the present invention, and already within the cell of a carrier such as Quantum dot, Dendrimer, liposome, etc. It has been reported that the introduction of amine groups and polyhistidine groups can be used to facilitate the introduction and endosomal escape, and their effects have been reported.
- the primary amine group modified at the end or the outside of the transporter forms a conjugate by electrostatic interaction with negatively charged genes while being protonated at pH in vivo, and has a buffering effect at the low pH of the endosome after inflow. It is known that internal tertiary amines can protect the transporter from degradation of lysosomes by facilitating escape of the endosomes (inhibition of gene transfer and expression using polymer-based hybrid materials. Polymer Sci. Technol. , Vol. 23, No. 3, pp254-259),
- Histidine one of the non-essential amino acids, has imidazoling (pKa3 6.04) at residue (-R), which increases the buffering capacity in endosomes and lysosomes. It is known that histidine modifications can be used to enhance endosomal escape efficiency in non-viral gene carriers (Novel histidine-conjugated galactosylated cationic liposomes for efficient hepatocyte selective gene transfer in human hepatoma HepG2 cells.J. Controlled Release 118, pp 262-270).
- the amine group or polyhistidine group may be linked with a hydrophilic material or a hydrophilic block through one or more linkers.
- P means an amine group or a polyhistidine group
- J 1 and J 2 is a linker independently a simple covalent bond
- PO 3 -, SO 3, CO 2 the C 2-12 alkyl, alkenyl, alkynyl in can be selected, but not limited to this, can be any linker J 1 and J 2 to meet the object of the present invention in accordance with the hydrophilic material used is apparent to those of ordinary skill.
- J 2 is a simple covalent bond or a PO 3 -
- J 1 is preferably a C 6 alkyl, but is not limited to this.
- J 2 is preferably a simple covalent bond or PO 3 ⁇
- J 1 is preferably Compound (4) in the formula (9), but is not limited thereto.
- hydrophilic material of the double-stranded oligo RNA structure according to formula (9) is a hydrophilic substance block according to formula (5) or formula (6), and when an amine group or polyhistidine group is introduced thereto, 10) or structure (11).
- the hydrophilic substance is preferably in the form bound to the 3 'end of the dengue virus-specific siRNA sense strand, in this case the formulas (9) to (11) May have the form of the following formulas (12) to (14).
- amine groups that can be introduced in the present invention primary to tertiary amine groups may be used, and primary amine groups are particularly preferably used.
- the introduced amine group may be present as an amine salt, for example the salt of the primary amine group may be present in the form of NH 3 + .
- polyhistidine groups which can be introduced in the present invention preferably include 3 to 10 histidines, and particularly preferably 5 to 8, most preferably 6 histidines.
- one or more cysteines may be included.
- Active targeting using nanoparticles is a technique that binds a targeting moiety to nanoparticles, which promotes the accumulation of nanoparticles in target tissues or delivers them into target cells.
- has been reported to improve internalization Does a targeting ligand influence nanoparticle tumor localization or uptake Trends Biotechnol. 2008 Oct; 26 (10): 552-8. Epub 2008 Aug 21).
- Active targeting uses target cell surface specific or overexpressed carbohydrates, receptors, and antigens (targeting moieties) that have the ability to bind to antigens (Nanotechnology in cancer). therapeutics: bioconjugated nanoparticles for drug delivery.Mol Cancer Ther 2006; 5 (8): 1909-1917).
- the double-stranded oligo RNA structure comprising the dengue virus-specific siRNA according to the present invention and the nanoparticles formed therefrom are provided with a targeting moiety, it efficiently promotes delivery to a target cell, and at a relatively low dosage. It can also be delivered to target cells to exhibit a high target gene expression regulation function, and can prevent delivery of non-specific dengue virus specific siRNA to other organs and cells.
- the present invention targets the ligands (L), in particular receptor-mediated endocytosis (RME), to the structures according to the above formulas (1) to (4), (7) and (8).
- L receptor-mediated endocytosis
- It provides a double-stranded oligo RNA, a structure additionally bound to a ligand having a characteristic of specifically binding to a receptor that promotes cell internalization, for example, a double-stranded oligo RNA structure according to formula (1)
- the form in which the ligand is bound to has the structure shown in the following structural formula (15).
- L is the target cell internalization through receptor-mediated endocytosis (RME) Ligand having the property of specifically binding to a receptor to be enhanced
- Z means a linker which mediates the binding of the ligand with a hydrophilic monomer in a covalent or hydrophilic block of material
- i is an integer from 1 to 5, preferably It is an integer of 1-3.
- Ligand in the formula (15) is preferably a target receptor specific antibody, aptamer, peptide having RME properties to enhance the target cell-specific internalization (internalization); Or folic acid (Folate, in general, folate and folic acid are used interchangeably with each other, folic acid in the present invention means folate that is active in the natural state or human body), N-acetyl galactosamine (N-acetyl Galactosamine, NAG Hexamine (hexoamine), glucose (glucose), mannose, and other chemicals such as sugar or carbohydrate (carbohydrate), such as, but is not limited thereto.
- folic acid in the present invention means folate that is active in the natural state or human body), N-acetyl galactosamine (N-acetyl Galactosamine, NAG Hexamine (hexoamine), glucose (glucose), mannose, and other chemicals such as sugar or carbohydrate (carbohydrate), such as, but
- hydrophilic material A in the formula (15) may be used in the form of a hydrophilic material block according to formula (5) and formula (6).
- the present invention provides a method for producing a double-stranded oligo RNA structure comprising the dengue virus-specific siRNA.
- Solid support in the present invention is preferably Controlled Pore Glass (CPG), but is not limited thereto.
- CPG Controlled Pore Glass
- Polystyrene, silica gel, cellulose paper, or the like may be used.
- the diameter is preferably 40 to 180 ⁇ m, and preferably has a pore size of 500 to 3000 ⁇ m.
- RNA single strand comprising the RNA single strand and the complementary sequence synthesized in step (2) may be a manufacturing method characterized in that used in the form of a phosphate group bonded to the 5 'end.
- the present invention provides a method for producing a double-stranded oligo RNA structure in which a ligand is further coupled to a double-stranded oligo RNA structure comprising a dengue virus-specific siRNA of the present invention.
- the ligand-RNA-polymer structure and the RNA single strand of the complementary sequence are separated and purified, and then the desired ligand-RNA-polymer structure and complement by measuring the molecular weight by MALDI-TOF mass spectrometer. You can check whether the RNA is prepared.
- Ligand-double-stranded oligo RNA structures can be prepared by annealing RNA single strands of sequences complementary to the prepared ligand-RNA-polymer constructs.
- the step (4) 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) to ( 6) may be performed during any of the steps.
- a nanoparticle comprising a double helix oligo RNA construct comprising a dengue virus specific siRNA.
- the double-stranded oligo RNA structure including the dengue virus gene-specific siRNA is amphiphilic containing both hydrophobic and hydrophilic substances, and the hydrophilic portion interacts with water molecules in the body and hydrogen bonds. They have an affinity towards them and are directed outwards, and hydrophobic materials are directed inwards through hydrophobic interactions between them to form thermodynamically stable nanoparticles. That is, the hydrophobic material is located in the center of the nanoparticles, and the hydrophilic material is located outside of the dengue virus-specific siRNA to form a nanoparticle that protects the dengue virus-specific siRNA.
- the nanoparticles thus formed improve the intracellular delivery of dengue virus-specific siRNA and improve siRNA efficacy.
- Nanoparticles according to the invention is characterized in that it consists of a double-stranded oligo RNA structure comprising siRNA having a different sequence, siRNA having a different sequence in the present invention may be siRNA other target gene specific of the dengue virus And the same target gene specificity but different sequences are interpreted.
- a double-stranded oligo RNA structure comprising a target gene-specific siRNA for treatment of other diseases in addition to dengue virus-specific siRNA may be included in the nanoparticles according to the present invention.
- the present invention provides a dengue virus specific siRNA, a composition for inhibiting dengue virus growth, and / or a dengue virus infection comprising a double-stranded oligo RNA structure comprising the same and / or nanoparticles comprising the double-stranded oligo RNA structure.
- a dengue virus specific siRNA a composition for inhibiting dengue virus growth, and / or a dengue virus infection comprising a double-stranded oligo RNA structure comprising the same and / or nanoparticles comprising the double-stranded oligo RNA structure.
- pharmaceutical compositions for prophylaxis and / or treatment are provided.
- composition for inhibiting dengue virus growth comprising a double-stranded oligo RNA structure according to the present invention
- any one sequence selected more preferably any one selected from SEQ ID NOs: 4, 16, 22, 51, 52, 71, and 82, most preferably any one of SEQ ID NOs: 51, 52, 71, and 82
- a double helix oligo RNA structure comprising a dengue virus-specific siRNA comprising a sense strand having a sequence of and an antisense strand having a sequence thereof may be included.
- the double-stranded oligo RNA structure including the dengue virus-specific siRNA may be included in a mixed form.
- a dengue virus proliferation inhibiting composition comprising two or more double-stranded oligo RNA structures comprising dengue virus-specific siRNAs having different sequences as described above, synergistic effects are achieved, such as combination therapy. Can be.
- any one of the structures selected from the double-stranded oligo RNA structure comprising dengue virus-specific siRNA is also included in the pharmaceutical composition according to the invention comprising a nanoparticle consisting of a double-stranded oligo RNA structure according to the present invention It may be composed purely only, or may be composed of a mixture of two or more double-stranded oligo RNA structure comprising a dengue virus-specific siRNA.
- composition of the present invention may be prepared by including at least one pharmaceutically acceptable carrier in addition to the above-mentioned effective ingredient.
- Pharmaceutically acceptable carriers should be compatible with the active ingredients of the present invention and include saline solution, sterile water, Ringer's solution, buffered saline, dextrose solution, maltodextrin solution, glycerol, ethanol and one or more of these components. It can mix and use, and if needed, other conventional additives, such as antioxidant, buffer, and bacteriostatic agent, can be added.
- diluents, dispersants, surfactants, binders and lubricants may be additionally added to formulate injectable formulations such as aqueous solutions, suspensions, emulsions and the like.
- a formulation in the form of a lyophilized form it is desirable to formulate and provide a formulation in the form of a lyophilized form.
- Methods commonly known in the art may be used for the preparation of lyophilized formulations, and stabilizers for lyophilization may be added.
- it may be preferably formulated according to each disease or component by a suitable method in the art or using a method disclosed in Remington's pharmaceutical Science, Mack Publishing Company, Easton PA.
- composition of the present invention can be determined by a person of ordinary skill in the art based on the symptoms and severity of the disease of a typical patient. It may also be formulated in various forms, such as powders, tablets, capsules, solutions, injections, ointments, syrups, etc., and may also be provided in unit-dose or multi-dose containers, such as sealed ampoules and bottles.
- composition of the present invention can be administered orally or parenterally.
- Routes of administration of the 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.
- the dosage of the composition according to the present invention may vary in the range depending on the weight, age, sex, health condition, diet, time of administration, method, excretion rate or severity of the disease, etc. Can decide.
- the compositions of the present invention can be formulated into suitable formulations using known techniques for clinical administration.
- the present invention also provides a method of dengue virus infection comprising administering a double helix oligo RNA construct, a nanoparticle comprising the same, and the double helix oligo RNA construct or the nanoparticle to a patient in need thereof. Provide prevention and treatment.
- Dengue virus-specific siRNA according to the present invention, the composition for the prevention and treatment of dengue virus infection comprising a double-stranded oligo RNA structure comprising the same can suppress the expression of dengue virus with high efficiency without side effects, currently suitable therapeutic agents It can be very useful for the prevention and treatment of no dengue virus infection.
- Fig. 2 shows the results of multiple alignments of the dengue virus genome sequence 3′-UTR site.
- FIG. 3 shows the relative positions of the universal siRNAs in the viral genome.
- Figure 4 is a graph showing the replication kinetics of dengue virus for each serotype in C6 / 36 cell line
- 5 is a graph showing replication kinetics of dengue virus for each serotype in VeroE6 cell line.
- FIG. 6 is a diagram showing the proliferation inhibitory effect of dengue virus serotype 4 of 56 siRNA candidate groups selected as primary
- FIG. 7 is a diagram showing the proliferation inhibitory effect of dengue virus serotype 4 of five siRNA candidate groups selected as primary
- FIG. 9 is a diagram showing the proliferation inhibitory effect of dengue virus serotypes of five siRNA candidate groups selected as primary
- FIG. 10 is a view showing relative positions of secondary general purpose siRNA positions designed by single nucleotide sliding window scanning in conventional general purpose SiRNA # 51 and SiRNA # 52 selected at sites showing high homology.
- Figure 11 shows the proliferation inhibitory effect of dengue virus serotype 2 and serohung 3 of the second universal 32 siRNA candidate group designed by single nucleotide sliding window scanning for the first screened universal SiRNA # 51 and SiRNA # 52 graph
- FIG. 13 is a graph showing the proliferation inhibitory effect of dengue virus serotype 2 to serotype 4 and dengue virus JB2 by using a combination of two selected siRNAs, siRNA ⁇ 51-15 and SiRNA # 52-10.
- Figure 16 is a schematic view of the nanoparticles consisting of a double helix oligomeric polymer structure according to the present invention.
- 17 is a diagram showing the proliferation inhibitory effect of dengue virus serotype 4 using SAMiRNA containing U1 siRNA according to the present invention.
- FIG. 18 is a graph showing the proliferation inhibitory effect on all dengue virus serotypes 1 to serotype 4 and dengue virus JB2 of the mono-HEG-SAMiRNA comprising a combi-siRNA according to the present invention.
- 19 is a graph showing the effect of inhibiting the growth according to the concentration of all dengue virus serotypes 1 to serotype 4 and dengue virus JB2 of the mono-HEG-SAMiRNA comprising a combi-siRNA according to the present invention
- Dengue virus serotype 4 (Bank Registration No. KBPV-VR-31) obtained from Korea Bank for Pathogenic Viruses (Korea) was infected with Vero E6 cells (VeroE6 cells) and 4 days later. The pellet was recovered. RNA was prep using Qiagen RNA prep kit, and after quantification, cDNA was synthesized using AccuPower Rocketscript TM RT Premix (Bioneer, Korea) based on 2 ⁇ g total mRNA (sequencing), and sequencing of the obtained cDNA was performed. As a result, it was confirmed that the dengue virus serotype 4 strain H241 (GenBank: AY947539.1) was identical except for 11 nucleotides and 6 amino acids.
- siRNAs of the top scores and the siRNAs additionally selected to be evenly distributed to each functional protein are combined. 50 siRNAs were designed as described in Table 2.
- siCONT SEQ ID NO: 89 having a sense strand
- siRNA siRNA having a sequence that does not inhibit the expression of any gene
- the siRNA was prepared by linking phosphodiester bonds forming an RNA backbone structure using ⁇ -cyanoethyl phosphoramidite (Nucleic Acids Research, 12: 4539-4557, 1984).
- RNA synthesizer 384 Synthesizer, BIONEER, KOREA
- a series of processes consisting of deblocking, coupling, oxidation, and capping on a solid support to which nucleotides are attached was repeated to obtain a reaction containing RNA of the desired length.
- the reaction was isolated and purified by HPLC LC918 (Japan Analytical Industry, Japan) equipped with Daisogel C18 (Daiso, Japan) column and matched with target sequence using MALDI-TOF mass spectrometer (Shimadzu, Japan). Confirmed. Then, by combining the sense and antisense RNA strand was prepared a double-stranded siRNA comprising the sequence selected from SEQ ID NO: 1 to 56 and SEQ ID NO: 89 as the sense strand.
- 12-well plates were seeded with C6 / 36 cells (2.5 ⁇ 10 5 / well) and Vero E6 cells (1 ⁇ 10 5 / well), and DPBS immediately before infection with dengue virus. Washing out.
- virus cultures were recovered at 24 hour intervals and centrifuged (6000 rpm, 5 mins, 4 ° C.). 400 ⁇ l of the culture was preprepared with the ExiPrep TM 16DX RNA prep equipment. 19.5 ⁇ l was used for cDNA synthesis and 5 ⁇ l of a total of 20 ⁇ l cDNA was used for qPCR.
- serotypes 2 to 4 were serotypes from the Korean Bank for Pathogenic Viruses (Korea Bank) and serotype 1 from the Department of Neurology and Virology.
- DN1234_S, DN123_AS and DN123_probe were used for detection of serotypes 1 to 3 for qPCR, and DN1234_S, DN4_AS and DN4_probe were used for detection of serotype 4.
- VeroE6 cells were transformed using 56 kinds of siRNAs prepared in Example 1, and the siRNA performance was confirmed by analyzing the copy number of the virus produced in the transformed cell line.
- VeroE6 cells are seeded in 12 ⁇ well plates (Nunc, USA) at 1 ⁇ 10 5 cells / well.
- DMEM Hyclone, USA
- Complete medium Complete medium was used as a culture medium of the cells were treated with 1 ml per well to culture the cells at 37 °C, 5% CO 2 conditions.
- the complete medium composition was set to 500 ml of Dulbeccos Modified Eagles Medium (pH 7.4) at a final 10% concentration of 4.00 mM L-Gutamine and 4500 mg / L Glucose, sodium pyruvate, and Fetal Bovine Serum (Hyclone, USA).
- the culture medium was removed in a 12-well plate for transfection of siRNA, exchanged with 500 ⁇ l of OPTI-MEM (GIBCO, USA), and the cells were preincubated intact in a 37 ° C., 5% CO 2 incubator. Pre-incubation).
- OPTI-MEM OPTI-MEM
- reagent in 250 ⁇ l of OPTI-MEM and 250 ⁇ l of OPTI-MEM diluted siRNA to a certain concentration, set aside at RT for 5 minutes, and then siRNA included. Diluted OPTI-MEM was added to OPTI-MEM with LipofectamineRNAimax and incubated at RT for 20 minutes before treatment to cells.
- a screening experiment was performed by first treating siRNA at a concentration of 20 nM to select candidate groups with inhibitory activity against dengue virus serotype 4 from a total of 56 designed siRNA candidate groups (Tables 2 and 3). It was.
- the residual virus value of the siRNA siCONT control group was set to 100 percent, and the residual virus value of other siRNA candidate groups was expressed as a relative percentage thereof, and was corrected to be compared with each other.
- the residual virus value of the siRNA siCONT control group was set to 100 percent, and the residual virus value of other siRNA candidate groups was expressed as a relative percentage thereof, and was corrected to be compared with each other.
- As a result as shown in [FIG. 6], less than 15% of residual virus was present in more than 30 siRNAs, and it was confirmed that it possessed high dengue virus inhibitory ability.
- siRNA candidate groups SiRNASi4, SiRNA # 5, SiRNA # 6, SiRNA # 7, SiRNA # 8, SiRNA # 13, SiRNA # 16, SiRNA #
- SiRNA # 20 SiRNA # 22, SiRNA # 23, SiRNA # 29, SiRNA # 32, SiRNA # 34, SiRNA # 39, SiRNA # 40, SiRNA # 41, SiRNA # 42, SiRNA # 44, SiRNA # 45, SiRNA # 46, SiRNA # 47, SiRNA # 51, SiRNA # 52
- siRNA candidate groups were sequenced 4 to 8, 13, 16, 20, 22, 23, 29, 32, 34, 39 to 42, 44 to 47, 51 and 52, respectively, in the order described above.
- SiRNA having a sense strand (Table 2 and Table 3).
- siRNA of “SiRNA # X” means siRNA having a sense strand as a sequence represented by SiRNA # X in Tables 2, 3, and 6, and the like.
- siRNA # 4 SiRNA # 16, SiRNA # 22, SiRNA # 51, SiRNA # 52
- siRNA UnisiRNA-sh
- siRNA having the same sequence as the shRNA described in (Korrapati AB et al., PLoS Negl Trop Dis . 6 (7): e1735, 2012) was used together as a positive control.
- the proliferation inhibitory effect on the concentration-dependent dengue virus serotype 4 of the five selected siRNA candidate groups (SiRNA # 4, SiRNA # 16, SiRNA # 22, SiRNA # 51, SiRNA # 52) Screening experiments were performed at four concentrations of 20 nM, 10 nM, 5 nM, and 1 nM.
- siRNA # 51 and SiRNA # 52 showed high inhibitory activity in most serotypes, and the other three siRNAs were detected in serotypes except for serotype 4. As a result, it was confirmed that the inhibitory effect was not large ([FIG. 9]).
- SiRNA # 51 and SiRNA # 52 were selected by single nucleotide sliding window scanning to find a more efficient universal siRNA candidate. Screening experiments were conducted to compare the inhibitory activity against serotypes 2 and 3 viruses against existing primary siRNA candidates at a concentration of 10 nM using 32 newly designed siRNA candidates based on the sequences of # 51 and SiRNA # 52. Was performed.
- SiRNA # 51-14 (SEQ ID NO: 70), SiRNA # 51-15 (SEQ ID NO: 71), SiRNA # 51-16 (SEQ ID NO: 72), SiRNA # 52-4 (SEQ ID NO: 76), SiRNA # 52 -5 (SEQ ID NO: 77), SiRNA # 52-8 (SEQ ID NO: 80), SiRNA # 52-9 (SEQ ID NO: 81), and SiRNA # 52-10 (SEQ ID NO: 82) in the experimental group treated with less than 1% It was confirmed that only the virus of remained and exhibited a very strong inhibitory ability. This is much better inhibitory value than the existing SiRNA # 51 and SiRNA # 52 efficacy [FIG. 11].
- SiRNA si51-15 SEQ ID NO: 71
- SiRNA # 52-10 SEQ ID NO: 82
- SiRNA # 51 and SiRNA # 52 sequences among siRNA candidate groups showing strong inhibitory ability were finally selected and their inhibitory effect on the proliferation of dengue virus serotypes 2 to 4 was assayed again at a concentration of 10 nM.
- siRNA # 51-15 and SiRNA # 52-10 which had better inhibition of the proliferation of dengue virus serotypes 2, 3, and 4 were selected, but with only one siRNA.
- SiRNA # 51-15 does not show strong inhibition against dengue virus serotype 4
- a siRNA mixture (hereinafter referred to as 'Combi-siRNA') in which SiRNA # 51-15 and SiRNA # 52-10 were mixed at a molar ratio of 1: 1 was prepared, and for the proliferation of all serotype dengue viruses Screening experiments were carried out at a concentration of 10 nM to see whether the universally strong inhibitory effect by the complementary effect (reinforcement effect) can be shown.
- Combi-siRNA showed a strong inhibitory effect on the proliferation of all dengue virus of the serotype [Fig. 13].
- the virus was first infected with the cultured cells, and then siRNA was treated to find out whether the siRNA could show efficacy as a therapeutic agent.
- siRNAs of finally selected SiRNA # 51-15 and SiRNA # 52-10 were added by 5nM, respectively, and siCONT 5nM was added thereto, and the final siRNA concentration was adjusted to 10nM.
- Combi-siRNA treatment showed strong proliferation against dengue virus proliferation of all serotypes. It was confirmed that the inhibitory ability [Fig. 14].
- Combi-siRNA can function as a universal therapeutic for all serotype viruses.
- siRNA and Combi-siRNA Two types of siRNA and Combi-siRNA, which were finally selected, were siRNA and Combi-siRNA, which were concentration-dependently selected from all serotypes of dengue virus JB (serum type 2, Chonbuk National University isolate) and dengue virus serotypes 1 to serum. Screening experiments were performed at four concentrations of 10 nM, 1 nM, 200 pM, and 50 pM to verify the effect of growth inhibition on type 4).
- each siRNA candidate group showed a different concentration-dependent effect on all serotype dengue virus [FIG. 15],
- the double-stranded oligo RNA structure (SAMiRNA) prepared in the present invention has a structure as shown in the following structural formula (16).
- S is the sense strand of the siRNA
- AS is an antisense strand of siRNA
- PEG is a hydrophilic material
- polyethylene glycol is a hydrophobic material tetradocosane containing disulphide
- 5 'and 3' means the orientation of the double helix oligo RNA terminus.
- the double-stranded oligo RNA of the sense strand in which polyethylene glycol is bound to the 3 'end After synthesis of the hydrophilic material structure, tetradocosan containing disulfide bonds was bound to the 5 'end to prepare a sense strand of the desired RNA-polymer structure.
- the antisense strand to be annealed with the strand, the antisense strand of the sequence complementary to the sense strand was prepared through the reaction mentioned above.
- RNA single strand and RNA polymer construct synthesized by treating 28% (v / v) ammonia in a 60 ° C. water bath were separated from the CPG, and then deprotected. The protective residue was removed through.
- RNA single-stranded and RNA-polymerized structures with no protective residues were added in a volume ratio of N-methylpyrolidon, triethylamine and triethylaminetrihydrofluoride in an oven at 70 ° C. Treatment was performed at a ratio of 10: 3: 4 to remove 2'TBDMS (tert-but ⁇ ldimethylsilyl).
- reaction was isolated and purified by HPLC LC918 (Japan Analytical Industry, Japan) equipped with Daisogel C18 (Daiso, Japan) column and matched with target sequence using MALDI-TOF mass spectrometer (Shimadzu, Japan). Confirmed.
- the same amount of the sense strand and the antisense strand were mixed in a 1 ⁇ annealing buffer (30 mM HEPES, 100 mM potassium acetate), 2 mM magnesium acetate, pH 7.0 to 7.5), and then reacted for 3 minutes in a 90 ° C constant temperature water bath and then again at 37 ° C, and finally selected five siRNA candidate groups (SiRNASi4, SiRNA # 16, SiRNA # 22, SiRNA # 51, SiRNA #).
- siRNA candidate groups SiRNA candidate groups
- the prepared double-stranded oligo RNA structure is to form nanoparticles, that is, micelles (micelles) by the hydrophobic interaction between the hydrophobic material bound to the terminal of the double-stranded oligo RNA (Fig. 16).
- the prepared SAMiRNA was dissolved in 1.5 ml DPBS (D ⁇ lbecco's Phosphate Buffered Saline) at a concentration of 50 ⁇ g / ml, and then nanoparticle powder was prepared by lyophilization at -75 ° C. and 5 mTorr for 48 hours. Melted homogenized nanoparticles were prepared and used in the examples of the present invention.
- Dengue virus serotypes using SAMiRNA prepared to include five siRNA candidate groups (SiRNA # 4, SiRNA # 16, SiRNA # 22, SiRNA # 51, SiRNA # 52) that were primary selected by the method of Example 5.1. Proliferation inhibitory effect on 3 and serotype 4 was confirmed.
- Example a is a hydrophilic material different from the SAMiRNA form in 5.2 hydrophilic substances block the PEG rather than [PO 3 - - hexamethylene glycol; 4 (see hereinafter referred to as 'Mono-HEG SAMiRNA', Structure 17)
- SiRNA ⁇ 51-15 and SiRNA # 52-10 were included in the SAMiRNA having improved stability.
- S is a sense strand of dengue virus specific siRNA
- AS is an antisense strand of dengue virus specific siRNA
- Hexa ethylene glycol is a hydrophilic substance
- C 24 is a hydrophobic material tetradocosane containing disulfide
- 5 'and 3' means the orientation of the sense strand ends in the double helix oligo RNA.
- siRNA # 51-15 and SiRNA # 52-10 which were selected at a molar ratio of 1: 1, was synthesized in a SAMiRNA form. Effectiveness evaluation as an actual therapeutic agent was performed by verifying whether the concentration effectively inhibits the proliferation of dengue virus by 50%.
- screening experiments were performed to include SiRNA # 51-15 and SiRNA # 52-10 together in Mono-HEG-SAMiRNA, and to verify the effect of suppressing proliferation in all dengue virus serotypes at concentrations of 500nM, 200nM, and 50nM. It was.
- the amine is newly modified by conjugating the amine group to the 3 'end of the sense strand as shown in the structural formula (18).
- -Mono-HEG-SAMiRNA was synthesized.
- S is a sense strand of dengue virus specific siRNA
- AS is an antisense strand of dengue virus specific siRNA
- Hexa ethylene glycol is a hydrophilic substance
- C 6 is a linker which is C 6 alkyl connecting an amine group with [Hexa Ethylene Glycol] 4
- C 24 is a tetradocosane containing a disulfide as a hydrophobic material
- 5 'and 3' means the orientation of the sense strand ends in the double helix oligo RNA.
- the newly synthesized amine-Mono-HEG-SAMiRNA binds the FITC fluorescent substance to the 3 'end portion of the antisense strand by the introduction of an amine group compared to the conventional Mono-HEG-SAMiRNA through fluorescence microscopy.
- the final production was made to visually measure whether there is an increase in the transfer efficiency.
- we compared the time-based transfer efficiency of Mono-HEG-SAMiRNA and amine-Mono-HEG-SAMiRNA with image data obtained using a confocal microscope and randomly captured images. The purpose of this study was to determine the effect of increasing the SAMiRNA delivery efficiency.
- HeLa cells were dispensed at 2 ⁇ 10 5 cells / ml in 2-chamber polystyrene vessels (BD Falcon TM cultureslides).
- DMEM Hyclone, USA
- Complete medium Complete medium was used as a culture medium of the cells were treated with 1 ml per chamber to culture the cells at 37 °C, 5% CO 2 conditions.
- the complete medium composition was set to 500 ml of Dulbeccos Modified Eagles Medium (pH 7.4) at a final 10% concentration of 4.00 mM L-Gutamine and 4500 mg / L Glucose, sodium pyruvate, and Fetal Bovine Serum (Hyclone, USA). After 15 hours of cell culture, the culture medium in the chamber was removed, the medium was changed to 1 ml of OPTI-MEM (GIBCO, USA), and the SAMiRNA- was performed so that IFA (ImmunoFluorescence Assay) could be performed simultaneously. FITC was treated at 1000 nM concentration at each defined time (0 hr, 0.5 hr, 1 hr, 3 hr, 12 hr) under conditions that were not exposed to light.
- IFA was performed in the experimental space where the light was blocked as much as possible.
- the culture medium of cells treated with SAMiRNA-FITC in a 2-chamber polystyrene vessel was removed with a 1000p pipettor, and washed twice with 1 ml of OPTI-MEM. Thereafter, the cells were washed once with 3 ml of 1X PBS for 3 minutes, and then treated with 500% of 2% PFA (Paraformaldehyde), and the cells were fixed at room temperature for 30 minutes. The 2% PFA used at this time was freshly prepared, filtered and stored frozen. After cell fixation, washing was performed twice with 3 ml of 1X PBS for 3 minutes each.
- Blocking solution containing 0.1% Triton X-100 (USB) and 10% BSA (Albumin, Bovine, pH 7.0) was added to 1X PBS. After treatment by 500ul for 30 minutes at room temperature, the solution was briefly washed with 1X PBS after removing the blocking solution. Then, the primary antibody (EEA1 (H-300), staining the intracellular endosome in a solution containing 0.1% Triton X-100 (USB) and 3% BSA (Albumin, Bovine, pH7.0) in 1X PBS, Santa Cruz, sc-33585) was diluted at a ratio of 500 to 1 (v / v), and then treated with 500 ul for each cell and wrapped in foil for 90 minutes to perform primary staining.
- ESA1 H-300
- DAPI DAPI, Dilactate, Sigma, D-9564
- 10mg / ml in DW was added to 1X PBS at 1000 to 1 (v /
- the diluted solution at the ratio of v) was dispensed into each cell with 500ul, and the staining was carried out for 20 minutes at room temperature. Thereafter, washing was performed three times for 3 minutes each with 1 ml of 1X PBS, and after removing the chamber wall, one drop of the mounting medium (IMMU-MOUNT, Thermo Scientific Shandon, cat.NO.9990402) was bubbled up to the maximum. After dropping on the cells so as not to go, carefully cover the cover glass and dried at room temperature for at least 20 minutes with the light blocked using a foil until the mounting medium solidified. After detecting and observing the FITC signal (Green) and Alexa546 (Red) signals through a confocal microscope (LSM700, Carl Zeiss), image data analysis was performed.
- FITC signal Green
- 2D images were obtained at 400X magnification for each sample (0hr, 0.5hr, 1hr, 3hr, 12hr) at each time zone, and 3D images of cells were obtained by z-stacking at 1000X magnification.
- 2D and 3D image analysis confirmed the presence of a signal that merges the FITC signal with Alexa546's signal (co-localization with the endosome of the SAMiRNA-FITC nanoparticle), and also the FITC signal. It was confirmed that is located in the cytoplasm inside the cell. Images obtained through confocal microscopy were analyzed and edited with the ZEN 2009 light edition (Carl Zeiss) software.
- the amine-Mono-HEG-SAMiRNA containing the amine group appeared as a small spot, which was initially shown as a large spot over time after treatment than the Mono-HEG-SAMiRNA, and was present more in the cytoplasm. It was confirmed that [FIG. 20].
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Abstract
Description
Claims (32)
- 서열번호 1 내지 88에서 선택된 어느 하나의 서열을 가지는 센스가닥(sense strand)과 이에 상보적 서열을 갖는 안티센스 가닥으로 이루어진 뎅기 바이러스 특이적 siRNA.
- 제1항에 있어서,siRNA의 센스가닥 또는 안티센스 가닥은 19 내지 31개의 뉴클레오타이드로 이루어진 것을 특징으로 하는 뎅기 바이러스 특이적 siRNA.
- 제1항에 있어서,서열번호 4, 16, 22, 51, 52, 71 및 82번으로 구성된 군에서 선택된 어느 하나의 서열을 가지는 센스가닥과 이에 상보적 서열을 갖는 안티센스 가닥을 포함하는 뎅기 바이러스 특이적 siRNA.
- 제 1항 내지 제 3항 중 어느 한 항에 있어서,siRNA의 센스가닥 또는 안티센스 가닥은 하나 이상의 화학적 변형(chemical modification)을 포함하는 것을 특징으로 하는 뎅기 바이러스 특이적 siRNA.
- 제 4항에 있어서,상기 화학적 변형은뉴클레오티드 내 당 구조의 2´ 탄소 위치에서 -OH기가 -CH3(메틸), -OCH3(methoxy), -NH2, -F(불소), -O-2-메톡시에틸 -O-프로필(propyl), -O-2-메틸티오에틸(methylthioethyl), -O-3-아미노프로필, -O-3-디메틸아미노프로필, -O-N-메틸아세트아미도 또는 -O-디메틸아미도옥시에틸로의 치환에 의한 변형;뉴클레오티드 내 당(sugar) 구조 내의 산소가 황으로 치환된 변형;뉴클레오티드결합의 포스포로티오에이트(phosphorothioate) 또는 보라노포페이트(boranophosphate), 메틸포스포네이트(methyl phosphonate) 결합으로의 변형;PNA(peptide nucleic acid), LNA(locked nucleic acid) 또는 UNA(unlocked nucleic acid) 형태로의 변형;에서 선택된 하나 이상의 변형임을 특징으로 하는 뎅기 바이러스 특이적 siRNA.
- 제1항 내지 제5항 중 어느 한 항에 있어서,siRNA의 안티센스 가닥의 5’ 말단에 하나 이상의 인산기(phosphate group(s))가 결합되어 있는 것을 특징으로 하는 뎅기 바이러스 특이적 siRNA.
- 제7항 내지 제9항 중 어느 한 항에 있어서,뎅기 바이러스 특이적 siRNA는 제1항 내지 제6항 중 어느 한 항에 따른 siRNA 임을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제7항 내지 제10항 중 어느 한 항에 있어서,친수성 물질의 분자량은 200 내지 10,000 임을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제11항에 있어서,친수성 물질은 폴리에틸렌 글리콜(PEG), 폴리비닐피롤리돈 및 폴리옥사졸린으로 구성된 군에서 선택되는 어느 하나 임을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제7항 내지 제10항 중 어느 한 항에 있어서,친수성 물질은 하기 구조식 (5) 또는 구조식 (6)의 구조를 갖는 것을 특징으로 하는 이중나선 올리고 RNA 구조체.구조식 5구조식 6상기 구조식 (5) 및 구조식 (6)에서 A’은 친수성 물질 단량체(monomer)를, J는 m개의 친수성 물질 단량체 간 또는 m개의 친수성 물질 단량체와 siRNA를 서로 연결하는 링커, m은 1 내지 15의 정수, n은 1 내지 10의 정수를 의미하며,친수성 물질 단량체 A’은 화합물 (1) 내지 화합물 (3)에서 선택된 어느 하나의 화합물이며, 링커(J)는 PO3 -, SO3 및 CO2로 구성된 군에서 선택된다.
- 제7항 내지 제10항 중 어느 한 항에 있어서,상기 소수성 물질의 분자량은 250 내지 1,000인 것을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제14항에 있어서,소수성 물질은 스테로이드(steroid) 유도체, 글리세라이드(glyceride) 유도체, 글리세롤 에테르(glycerol ether), 폴리프로필렌 글리콜(polypropylene glycol), C12 내지 C50의 불포화 또는 포화탄화수소(hydrocarbon), 디아실포스파티딜콜린(diacylphosphatidylcholine), 지방산(fatty acid), 인지질(phospholipid) 및 리포폴리아민(lipopolyamine)으로 구성된 군에서 선택되는 것을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제15항에 있어서,상기 스테로이드(steroid) 유도체는 콜레스테롤, 콜리스탄올, 콜산, 콜리스테릴포르메이트, 코테스타닐모르메이트 및 콜리스타닐아민으로 구성된 군에서 선택되는 것을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제15항에 있어서,상기 글리세라이드 유도체는 모노-, 디- 및 트리-글리세라이드에서 선택되는 것을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제7항 내지 제17항 중 어느 한 항에 있어서,상기 X 및 Y로 표시되는 공유결합은 비분해성 결합 또는 분해성 결합인 것을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제18항에 있어서,상기 비분해성 결합은 아미드 결합 또는 인산화 결합인 것을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제18항에 있어서,상기 분해성 결합은 이황화 결합, 산분해성 결합, 에스테르 결합, 안하이드라이드 결합, 생분해성 결합 또는 효소 분해성 결합인 것을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제7항 내지 제20항 중 어느 한 항에 있어서,친수성 물질에 수용체 매개 내포작용(receptor-mediated endocytosis, RME)을 통해 타겟 세포 내재화(internalization)를 증진시키는 수용체와 특이적으로 결합하는 특성을 가진 리간드(ligand)가 추가적으로 결합된 것을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제21항에 있어서,상기 리간드는 타겟 수용체 특이적 항체나 앱타머, 펩타이드, 엽산(folate), N-아세틸 갈락토사민(N-acetyl Galactosamine, NAG), 포도당(glucose) 및 만노스(mannose)로 구성된 군에서 선택되는 것을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제7항 내지 제20항 중 어느 한 항에 있어서,상기 친수성 물질의 siRNA와 결합된 반대편 말단 부위에 아민기 또는 폴리히스티딘(polyhistidine) 그룹이 추가적으로 도입된 것을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제23항에 있어서,상기 아민기 또는 폴리히스티딘(polyhistidine) 그룹은 하나 이상의 링커를 통해 친수성 물질 또는 친수성 블록과 연결된 것을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제23항에 있어서,상기 1차 내지 3차 아민기 중에서 선택된 어느 하나 임을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제23항에 있어서,상기 폴리히스티딘(polyhistidine) 그룹은 3 내지 10개의 히스티딘을 포함하는 것을 특징으로 하는 이중나선 올리고 RNA 구조체.
- 제7항 내지 제26항 중 어느 한 항에 따른 이중나선 올리고 RNA 구조체로 이루어진 나노입자(nanoparticle).
- 제27항에 있어서,서로 다른 서열을 가지는 siRNA를 포함하는 이중나선 올리고 RNA 구조체가 혼합되어 구성되는 것을 특징으로 하는 나노입자.
- 제1항 내지 제7항 중 어느 한 항에 따른 siRNA, 제7항 내지 제26항 중 어느 한 항에 따른 이중나선 올리고 RNA 구조체, 또는 제27항 또는 제28항에 따른 나노입자를 유효성분으로 포함하는 약제학적 조성물.
- 제29항에 있어서,뎅기 바이러스 감염을 예방 또는 치료하기 위한 약제학적 조성물.
- 제29항 또는 제30항에 따른 조성물을 포함하는 동결건조된 형태의 제형.
- 제1항 내지 제31항 중 어느 한 항에 따른 siRNA, 이중나선 올리고 RNA 구조체, 나노입자, 조성물 또는 제형을를 예방 또는 치료를 요하는 개체에게 투여하는 것을 특징으로 하는 뎅기 바이러스 감염을 예방 또는 치료하는 방법.
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AU2014284835B2 (en) | 2017-08-10 |
MX2016000021A (es) | 2017-04-06 |
EP3018210A4 (en) | 2017-06-07 |
EP3018210A1 (en) | 2016-05-11 |
KR101715228B1 (ko) | 2017-03-13 |
US20160145622A1 (en) | 2016-05-26 |
CA2917318A1 (en) | 2015-01-08 |
CN105705639A (zh) | 2016-06-22 |
JP2016524901A (ja) | 2016-08-22 |
AU2014284835A1 (en) | 2016-02-18 |
KR20150143425A (ko) | 2015-12-23 |
JP6368363B2 (ja) | 2018-08-01 |
SG11201507571TA (en) | 2015-10-29 |
US9695421B2 (en) | 2017-07-04 |
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