WO2023138659A1 - 一种dsRNA、其应用及制备方法 - Google Patents
一种dsRNA、其应用及制备方法 Download PDFInfo
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- WO2023138659A1 WO2023138659A1 PCT/CN2023/073166 CN2023073166W WO2023138659A1 WO 2023138659 A1 WO2023138659 A1 WO 2023138659A1 CN 2023073166 W CN2023073166 W CN 2023073166W WO 2023138659 A1 WO2023138659 A1 WO 2023138659A1
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- 230000028327 secretion Effects 0.000 description 1
- 229940126586 small molecule drug Drugs 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229940114926 stearate Drugs 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 239000007929 subcutaneous injection Substances 0.000 description 1
- 238000010254 subcutaneous injection Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001973 tert-pentyl group Chemical group [H]C([H])([H])C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 229960004559 theobromine Drugs 0.000 description 1
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 description 1
- 229940104230 thymidine Drugs 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M trans-cinnamate Chemical compound [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- LEIMLDGFXIOXMT-UHFFFAOYSA-N trimethylsilyl cyanide Chemical compound C[Si](C)(C)C#N LEIMLDGFXIOXMT-UHFFFAOYSA-N 0.000 description 1
- FTVLMFQEYACZNP-UHFFFAOYSA-N trimethylsilyl trifluoromethanesulfonate Chemical compound C[Si](C)(C)OS(=O)(=O)C(F)(F)F FTVLMFQEYACZNP-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- 229940075466 undecylenate Drugs 0.000 description 1
- 241001430294 unidentified retrovirus Species 0.000 description 1
- 230000003827 upregulation Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/7088—Compounds having three or more nucleosides or nucleotides
- A61K31/713—Double-stranded nucleic acids or oligonucleotides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K48/00—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/06—Antihyperlipidemics
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/11—DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
- C12N15/113—Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing
Definitions
- the present disclosure relates to the technical field of using dsRNA to reduce the expression of target RNA and to treat related diseases, in particular, the present disclosure relates to the preparation and application of dsRNA.
- RNA interference is an effective way to silence gene expression. According to statistics, more than 80% of the disease-related proteins in the human body cannot be targeted by current conventional small molecule drugs and biological macromolecular preparations, and are non-druggable proteins. Using RNA interference technology, it is possible to design appropriate dsRNA based on the mRNA encoding these proteins, specifically target the target mRNA and degrade the target mRNA, thereby inhibiting the production of related proteins. Therefore, dsRNA has very important prospects for drug development. However, in order to achieve the therapeutic effect of RNA interference in vivo, it needs to be delivered to specific cells in vivo.
- asialoglycoprotein receptor is a receptor specifically expressed in hepatocytes, which has high abundance on the surface of hepatocytes and is characterized by rapid intracellular and extracellular transitions.
- Monosaccharide and polysaccharide molecules such as galactose, galactosamine, and N-acetylgalactosamine have high affinity for ASGPR.
- GalNAc galactosamine molecular clusters
- APOC3 is mainly synthesized in the liver and plays an important role in the production, metabolism and clearance of triglyceride-rich lipoproteins from plasma.
- the expression of APOC3 in the liver can promote the secretion of triglyceride-rich very low-density lipoprotein (VLDL).
- APOC3 can also inhibit the catabolism of triglyceride-rich lipoproteins by inhibiting the activity of lipoprotein lipase and hepatic lipase, and further increase serum triglyceride levels.
- APOC3 can also inhibit the hepatic clearance of T-rich lipoproteins and their residual particles by interfering with T-rich lipoproteins and their binding to hepatic receptors.
- Elevated APOC3 levels are associated with elevated triglyceride levels and diseases such as cardiovascular disease, metabolic syndrome, obesity and diabetes. In recent years, APOC3 has emerged as a promising target for the treatment of diseases associated with hypertriglyceridemia. Elevated serum triglyceride levels have been identified as an independent risk factor for cardiovascular disease and a contributory factor for the development of atherosclerosis. with severe hypertriglyceridemia Individuals are also at high risk of developing recurrent pancreatitis.
- the present disclosure provides a double-stranded ribonucleic acid (dsRNA), which comprises a sense strand and an antisense strand, wherein the sense strand and the antisense strand comprise continuous nucleotides according to the direction from the 5' end to the 3' end, wherein the nucleotides at the 7th, 8th and 9th positions of the sense strand are 2'-fluoro-modified nucleotides, the 5th nucleotides are independently 2'-methoxy-modified nucleotides or 2'-fluoro-modified nucleotides, and the nucleotides at the remaining positions are 2'-methoxy-modified nucleotides;
- the nucleotides at position 14 are 2'-fluoro-modified nucleotides, the nucleotides at positions 4, 6, 8, 9, 10, 12, 16, and 18 are independently 2'-methoxy or 2'-fluoro-modified nucleotides, and the nucleot
- At least one nucleotide position from the 2nd to the 8th position of the antisense strand contains a chemical modification represented by formula (I), its tautomer or a pharmaceutically acceptable salt thereof:
- Y is selected from O, NH and S;
- Each X is independently selected from CR 4 (R 4 '), S, NR 5 and NH-CO, wherein R 4 , R 4 ', R 5 are independently H or C 1 -C 6 alkyl;
- J 2 is H or C 1 -C 6 alkyl
- Q 1 is Q 2 is R 2 ; or Q 1 is R 2 and Q 2 is
- J 1 is H or C 1 -C 6 alkyl
- R 1 and R 2 are directly connected to form a ring
- B is a base
- the chemical modification represented by formula (I), its tautomer, or a pharmaceutically acceptable salt thereof is replaced with a 2'-methoxy modification.
- At least one nucleotide in the 2nd to 8th positions of the antisense strand is a 2'-methoxy-modified nucleotide.
- the 2'-fluoro-modified nucleotides at positions 2, 4, 6, 10, 12, 14 and 16 of the 5' end of the antisense strand.
- the 2'-fluoro-modified nucleotides at positions 2, 4, 6, 10, 14 and 16 of the 5' end of the antisense strand are identical to each other.
- the 2'-fluoro-modified nucleotides at positions 2, 4, 6, 12, 14 and 16 of the 5' end of the antisense strand are identical to each other.
- the 2'-fluoro-modified nucleotides at positions 2, 6, 10, 12, 14 and 16 of the 5' end of the antisense strand are identical to each other.
- positions 2, 6, 14 and 16 at the 5' end of the antisense strand are 2'-fluoro-modified nucleotides.
- the 2'-fluoro-modified nucleotides at positions 2, 4, 6, 14 and 16 at the 5' end of the antisense strand are identical to each other.
- the 2'-fluoro-modified nucleotides at positions 2, 6, 10, 14 and 16 at the 5' end of the antisense strand are identical to each other.
- positions 2, 6, 12, 14 and 16 at the 5' end of the antisense strand are 2'-fluoro-modified nucleotides.
- the 6th, 14th and 16th positions at the 5' end of the antisense strand are 2'-fluoro-modified nucleotides.
- the 2, 14 and 16 positions at the 5' end of the antisense strand are 2'-fluoro modified of nucleotides.
- positions 2, 6 and 14 at the 5' end of the antisense strand are 2'-fluoro-modified nucleotides.
- the chemical modification shown in formula (I) is selected from the chemical modification shown in formula (I-1):
- Y is selected from O, NH and S;
- Each X is independently selected from CR 4 (R 4 '), S, NR 5 and NH-CO, wherein R 4 , R 4 ', R 5 are independently H or C 1 -C 6 alkyl;
- Each J 1 and J 2 are independently H or C 1 -C 6 alkyl
- R 1 and R 2 are directly connected to form a ring
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylamino Purine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- the chemical modification shown in formula (I) is selected from the chemical modification shown in formula (I-2):
- Y is selected from O, NH and S;
- Each X is independently selected from CR 4 (R 4 '), S, NR 5 and NH-CO, wherein R 4 , R 4 ', R 5 are independently H or C 1 -C 6 alkyl;
- Each J 1 and J 2 are independently H or C 1 -C 6 alkyl
- R 1 and R 2 are directly connected to form a ring
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylamino Purine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- each X is independently selected from CR 4 (R 4 '), S, NR 5 and NH-CO, wherein R 4 , R 4 ', R 5 are each independently H, methyl, ethyl, n-propyl or isopropyl;
- Each J 1 and J 2 are independently H or methyl
- R 1 and R 2 are directly connected to form a ring
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- each X is independently selected from CR 4 (R 4 '), S, NR 5 and NH-CO, wherein R 4 , R 4 ', R 5 are each independently H, methyl, ethyl, n-propyl or isopropyl;
- Each J 1 and J 2 are independently H or methyl
- R 1 and R 2 are directly connected to form a ring
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- J 1 and J 2 are independently H;
- R 1 is selected from H, methyl and CH 2 OH;
- R 2 is selected from H, OH, NH 2 , methyl and CH 2 OH;
- R 3 is selected from H, OH, NH 2 , methyl and CH 2 OH;
- R 1 and R 2 are directly connected to form a ring
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylamino Purine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- J 1 and J 2 are independently H;
- R 1 is selected from H, methyl and CH 2 OH;
- R 2 is selected from H, methyl and CH 2 OH;
- R 3 is selected from H, OH, NH 2 , methyl and CH 2 OH;
- R 1 and R 2 are directly connected to form a ring
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- Y is O or NH
- Each X is independently selected from CR 4 (R 4 '), NR 5 and NH-CO, R 4 , R 4 ', R 5 are independently H or C 1 -C 6 alkyl;
- J 2 is H or C 1 -C 6 alkyl
- R 3 is selected from H, OH, NH 2 , C 1 -C 6 alkyl, C 1 -C 6 alkoxy and (CH 2 ) p R 6 ;
- Q 1 is Q 2 is R 2 ; or Q 1 is R 2 and Q 2 is
- R 1 is selected from H, OH, C 1 -C 6 alkyl, C 1 -C 6 alkoxy and (CH 2 ) q R 7 ;
- J 1 is H or C 1 -C 6 alkyl
- R 2 is selected from H, OH, C 1 -C 6 alkyl, C 1 -C 6 alkoxy and (CH 2 ) r R 8 ;
- R 1 and R 2 are directly connected to form a 3-6 membered ring;
- B is a base
- X is independently selected from CR 4 (R 4 ′) and NH—CO.
- X is independently selected from CR 4 (R 4 ′).
- R 3 is selected from H, C 1 -C 6 alkyl, and (CH 2 ) p R 6 .
- R 3 is selected from H and C 1 -C 6 alkyl.
- R 1 is selected from H, C 1 -C 6 alkyl, and (CH 2 ) q R 7 .
- R 1 is selected from H and C 1 -C 6 alkyl.
- R 2 is selected from H, OH, C 1 -C 6 alkyl, and (CH 2 ) r R 8 .
- R 2 is selected from H, C 1 -C 6 alkyl, and (CH 2 ) r R 8 .
- Y is O
- Each X is independently selected from CR 4 (R 4 ') and NH-CO, R 4 and R 4 ' are independently H or C 1 -C 6 alkyl;
- J 2 is H or C 1 -C 6 alkyl
- R 3 is selected from H, C 1 -C 6 alkyl and (CH 2 ) p R 6 ;
- Q 1 is Q 2 is R 2 ; or Q 1 is R 2 and Q 2 is
- R 1 is selected from H, C 1 -C 6 alkyl and (CH 2 ) q R 7 ;
- J 1 is H or C 1 -C 6 alkyl
- R 2 is selected from H, OH, C 1 -C 6 alkyl and (CH 2 ) r R 8 ;
- R 1 and R 2 are directly connected to form a 5-6 membered ring;
- B is a base
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- Y is O
- Each X is independently selected from CR 4 (R 4 '), R 4 and R 4 ' are independently H or C 1 -C 6 alkyl;
- R 3 is selected from H and C 1 -C 6 alkyl
- Q 1 is Q 2 is R 2 ; or Q 1 is R 2 and Q 2 is
- R 1 is selected from H and C 1 -C 6 alkyl
- J 1 is H or C 1 -C 6 alkyl
- R 1 and R 2 are directly connected to form a 5-6 membered ring;
- B is a base
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- Y is O.
- X is independently selected from CR 4 (R 4 ′), NR 5 and NH-CO, and R 4 , R 4 ′, and R 5 are each independently H, methyl, ethyl, n-propyl or isopropyl.
- X is independently selected from NH-CO, CH2 and NH.
- X is independently selected from NH—CO and CH 2 .
- X is CH2 .
- J 2 is H or methyl. In some embodiments, J is H.
- R is selected from H and methyl.
- R2 is selected from H, methyl, and CH2OH .
- R1 and R2 are directly linked to form a 5-6 membered ring. In some embodiments, R and R are directly connected to form a 3-6 membered cycloalkyl. In some embodiments, R 1 and R 2 are directly connected to form cyclopentyl or cyclohexyl.
- the chemical modification represented by the formula (I) is selected from any of the following structures:
- B is selected from purine base, pyrimidine base, indole, 5-nitroindole and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- the chemical modification represented by the formula (I) is selected from any of the following structures:
- B is selected from purine base, pyrimidine base, indole, 5-nitroindole and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- the chemical modification represented by the formula (I) is selected from any of the following structures:
- B is selected from purine base, pyrimidine base, indole, 5-nitroindole and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2-thiouridine, 4-thiouridine, C5-modified pyrimidines, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- the chemical modification represented by the formula (I) is selected from any of the following structures:
- B is selected from purine base, pyrimidine base, indole, 5-nitroindole and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- nucleotide comprising the chemical modification represented by formula (I), its tautomer or a pharmaceutically acceptable salt thereof is selected from nucleotides comprising the chemical modification represented by formula (I'), its tautomer or its pharmaceutically acceptable salt,
- Y is selected from O, NH and S;
- Each X is independently selected from CR 4 (R 4 '), S, NR 5 and NH-CO, wherein R 4 , R 4 ', R 5 are independently H or C 1 -C 6 alkyl;
- J 2 is H or C 1 -C 6 alkyl
- Q 1' is Q 2' is R 2 ; or Q 1' is R 2 and Q 2' is
- J 1 is H or C 1 -C 6 alkyl
- R 1 and R 2 are directly connected to form a ring
- B is a base
- M is O or S
- R when X is NH-CO, R is not H.
- the chemical modification represented by formula (I'), its tautomer, or a pharmaceutically acceptable salt thereof is replaced with a 2'-methoxy modification.
- the chemical modification shown in the formula (I') is selected from the chemical modification shown in the formula (I'-1):
- Y is selected from O, NH and S;
- Each X is independently selected from CR 4 (R 4 '), S, NR 5 and NH-CO, wherein R 4 , R 4 ', R 5 are independently H or C 1 -C 6 alkyl;
- Each J 1 and J 2 are independently H or C 1 -C 6 alkyl
- M is O or S
- R 1 and R 2 are directly connected to form a ring
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- the chemical modification shown in formula (I') is selected from the chemical modification shown in formula (I'-2):
- Y is selected from O, NH and S;
- Each X is independently selected from CR 4 (R 4 '), S, NR 5 and NH-CO, wherein R 4 , R 4 ', R 5 are independently H or C 1 -C 6 alkyl;
- Each J 1 and J 2 are independently H or C 1 -C 6 alkyl
- R 1 and R 2 are directly connected to form a ring
- M is O or S
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- each X is independently selected from CR4 ( R4 '), S, NR5 , and NH-CO, wherein R 4 , R 4 ', R 5 are independently H or C 1 -C 3 alkyl;
- Each J 1 and J 2 are independently H or C 1 -C 3 alkyl
- R 1 and R 2 are directly connected to form a ring
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- each X is independently selected from CR 4 (R 4 '), S, NR 5 and NH-CO, wherein R 4 , R 4 ', R 5 are each independently H, methyl, ethyl, n-propyl or isopropyl;
- Each J 1 and J 2 are independently H or methyl
- R 1 and R 2 are directly connected to form a ring
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- Each J 1 and J 2 are independently H;
- R 1 is selected from H, methyl and CH 2 OH;
- R 2 is selected from H, OH, NH 2 , methyl and CH 2 OH;
- R 3 is selected from H, OH, NH 2 , methyl and CH 2 OH;
- R 1 and R 2 are directly connected to form a ring
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- Each J 1 and J 2 are independently H;
- R 1 is selected from H, methyl and CH 2 OH;
- R 2 is selected from H, methyl and CH 2 OH;
- R 3 is selected from H, OH, NH 2 , methyl and CH 2 OH;
- R 1 and R 2 are directly connected to form a ring
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- Y is O or NH
- Each X is independently selected from CR 4 (R 4 '), NR 5 and NH-CO, R 4 , R 4 ', R 5 are independently H or C 1 -C 6 alkyl;
- J 2 is H or C 1 -C 6 alkyl
- R 3 is selected from H, OH, NH 2 , C 1 -C 6 alkyl, C 1 -C 6 alkoxy and (CH 2 ) p R 6 ;
- Q 1' for Q 2' is R 2 ; or Q 1' is R 2 and Q 2' is
- R 1 is selected from H, OH, C 1 -C 6 alkyl, C 1 -C 6 alkoxy and (CH 2 ) q R 7 ;
- J 1 is H or C 1 -C 6 alkyl
- R 2 is selected from H, OH, C 1 -C 6 alkyl, C 1 -C 6 alkoxy and (CH 2 ) r R 8 ;
- R 1 and R 2 are directly connected to form a 3-6 membered ring;
- M is O or S
- B is a base
- X is independently selected from CR 4 (R 4 ′) and NH—CO.
- X is independently selected from CR 4 (R 4 ′).
- R 3 is selected from H, C 1 -C 6 alkyl, and (CH 2 ) p R 6 .
- R 3 is selected from H and C 1 -C 6 alkyl.
- R 1 is selected from H, C 1 -C 6 alkyl, and (CH 2 ) q R 7 .
- R 1 is selected from H and C 1 -C 6 alkyl.
- R 2 is selected from H, OH, C 1 -C 6 alkyl, and (CH 2 ) r R 8 .
- R 2 is selected from H, C 1 -C 6 alkyl, and (CH 2 ) r R 8 .
- Y is O
- Each X is independently selected from CR 4 (R 4 ') and NH-CO, R 4 and R 4 ' are independently H or C 1 -C 6 alkyl;
- J 2 is H or C 1 -C 6 alkyl
- R 3 is selected from H, C 1 -C 6 alkyl and (CH 2 ) p R 6 ;
- Q 1' for Q 2' is R 2 ; or Q 1' is R 2 and Q 2' is
- R 1 is selected from H, C 1 -C 6 alkyl and (CH 2 ) q R 7 ;
- J 1 is H or C 1 -C 6 alkyl
- R 2 is selected from H, OH, C 1 -C 6 alkyl and (CH 2 ) r R 8 ;
- R 1 and R 2 are directly connected to form a 5-6 membered ring;
- M is O or S
- B is a base
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- Y is O
- Each X is independently selected from CR 4 (R 4 '), R 4 and R 4 ' are independently H or C 1 -C 6 alkyl;
- R 3 is selected from H and C 1 -C 6 alkyl
- Q 1' for Q 2' is R 2 ; or Q 1' is R 2 and Q 2' is
- R 1 is selected from H and C 1 -C 6 alkyl
- J 1 is H or C 1 -C 6 alkyl
- R 1 and R 2 are directly connected to form a 5-6 membered ring;
- M is O or S
- B is a base
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- Y is O.
- X is independently selected from CR 4 (R 4 '), NR 5 and NH-CO, R 4 , R 4 ', R 5 are independently H, methyl, ethyl, n-propyl or isopropyl.
- X is independently selected from NH—CO, CH 2 and NH.
- X is independently selected from NH—CO and CH 2 .
- X is CH2 .
- J 2 is H or methyl. In some embodiments, J is H.
- R is selected from H and methyl.
- R2 is selected from H, methyl, and CH2OH .
- R1 and R2 are directly linked to form a 5-6 membered ring. In some embodiments, R and R are directly connected to form a 3-6 membered cycloalkyl. In some embodiments, R 1 and R 2 are directly connected to form cyclopentyl or cyclohexyl.
- the chemical modification represented by the formula (I') is selected from any of the following structures:
- M is O or S
- B is selected from purine bases, pyrimidine bases, indole, 5-nitroindole and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- the chemical modification represented by the formula (I') is selected from any of the following structures:
- M is O or S
- B is selected from purine bases, pyrimidine bases, indole, 5-nitroindole and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- the chemical modification represented by the formula (I') is selected from any of the following structures:
- M is O or S
- B is selected from purine bases, pyrimidine bases, indole, 5-nitroindole and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same base as if the nucleotide at that position on the antisense strand was unmodified.
- the chemical modification represented by the formula (I') is selected from any of the following structures: and those in which the adenine in their structure is replaced by guanine, cytosine, uracil, or thymine.
- B is selected from the group consisting of purine bases, pyrimidine bases, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, isoguanine, hypoxanthine, xanthine, C2 modified purine, N8 modified purine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, N6-alkyladenine, O6-alkylguanine, 7-deazapurine, cytosine, 5-methylcytosine, isocytosine, pseudocytosine, uracil, pseudouracil, 2- Thiouridine, 4-thiouridine, C5-modified pyrimidine, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole, and 3-nitropyrrole.
- B is the same as the base of the antisense strand when the nucleotide at this position is unmodified.
- the chemical modification represented by the formula (I) is N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-oxidethyl
- the present disclosure provides a dsRNA comprising a sense strand and an antisense strand:
- the antisense strand is at least partially reverse complementary to the target sequence to mediate RNA interference; in some embodiments, there are no more than 5, no more than 4, no more than 3, no more than 2, and no more than 1 mismatches between the antisense strand and the target sequence; The target sequence is perfectly reverse complementary.
- the sense strand and the antisense strand are at least partially reverse complementary to form a double-stranded region; in some embodiments, there are no more than 5, no more than 4, no more than 3, no more than 2, and no more than 1 mismatches between the sense strand and the antisense strand; in some embodiments, the sense strand and the antisense strand are fully reverse complementary.
- the sense and antisense strands each independently have 16 to 35, 16 to 34, 17 to 34, 17 to 33, 18 to 33, 18 to 32, 18 to 31, 18 to 30, 18 to 29, 18 to 28, 18 to 27, 18 to 26, 18 to 25, 18 to 24, 18 to 23 , 19 to 25, 19 to 24, or 19 to 23 nucleotides (eg, 19, 20, 21, 22, 23 nucleotides).
- the sense strand and the antisense strand are the same or different in length, the sense strand is 19-23 nucleotides in length, and the antisense strand is 19-26 nucleotides in length.
- the length ratio of the sense strand and the antisense strand may be 19/20, 19/21, 19/22, 19/23, 19/24, 19/25, 19/26, 20/20, 20/21, 20/22, 20/23, 20/24, 20/25, 20/26, 21/20, 21/21, 21/22, 2 1/23, 21/24, 21/25, 21/26, 22/20, 22/21, 22/22, 22/23, 22/24, 22/25, 22/26, 23/20, 23/21, 23/22, 23/23, 23/24, 23/25, or 23/26.
- the sense and antisense strands have a length ratio of 19/21, 21/23, or 23/25.
- the sense and antisense strands have a length ratio
- the dsRNA comprises one or two blunt ends.
- the dsRNA comprises an overhang with 1 to 4 unpaired nucleotides, eg, 1, 2, 3, 4.
- the dsRNA comprises an overhang located 3' to the antisense strand.
- the nucleotide comprising the chemical modification represented by formula (I) or formula (I'), its tautomer or a pharmaceutically acceptable salt thereof is located at position 5, position 6 or position 7 of the 5' region of the antisense strand.
- the nucleotide comprising the chemical modification represented by formula (I) or formula (I'), its tautomer or a pharmaceutically acceptable salt thereof is located at position 7 of the 5' region of the antisense strand.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-diaminopurine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole and 3-nitropyrrole.
- B is selected from adenine, guanine, 2,6-dihydro base purine, 6-dimethylaminopurine, 2-aminopurine, cytosine, uracil, thymine, indole, 5-nitroindole and 3-nitropyrrole.
- B is the same as the base of the antisense strand when the 5th nucleotide in its 5' region is not modified.
- B is the same as the base when the 6th nucleotide of the 5' region of the antisense strand is not modified.
- B is the same base as when the 7th nucleotide of the 5' region of the antisense strand is not modified.
- the nucleotide at position 5 of the sense strand is a 2'-methoxy modified nucleotide.
- the 7th nucleotide of the antisense strand is a 2'-methoxy modified nucleotide.
- the sense strand and antisense strand comprise or are nucleotides represented by the following formula:
- Antisense strand 5'-N a 'N b 'N a 'X'N a 'X'W'X'X'X'N a 'X'N a 'N b 'N a 'X'N a 'X'N a 'N a '-3';
- each X is independently Na or Nb
- each X' is independently Na ' or Nb '
- Na and Na ' are 2'-methoxy-modified nucleotides
- Nb and Nb ' are 2'-fluoro-modified nucleotides
- W' represents a 2'-methoxy-modified nucleotide or a nucleotide comprising a chemical modification represented by formula (I) or formula (I'), a tautomer or a pharmaceutically acceptable salt thereof.
- W' represents a 2'-methoxy modified nucleotide.
- W' represents a nucleotide comprising a chemical modification represented by formula (I) or formula (I'), a tautomer thereof, or a pharmaceutically acceptable salt thereof.
- W' has the following structure:
- the sense strand and the antisense strand comprise or are nucleotide sequences represented by the following formula:
- Antisense strand 5'-N a 'N b 'N a 'X'N a 'X'W'X'X'X'N a 'X'N a 'N b 'N a 'X'N a 'X'N a 'N a '-3';
- each X' is independently N a ' or N b '; N a and N a ' are 2'-methoxy-modified nucleotides, N b and N b ' are 2'-fluoro-modified nucleotides;
- W' represents a 2'-methoxy-modified nucleotide or a nucleotide comprising a chemical modification represented by formula (I) or formula (I'), a tautomer or a pharmaceutically acceptable salt thereof.
- W' represents a 2'-methoxy modified nucleotide.
- W' represents a nucleotide comprising a chemical modification represented by formula (I) or formula (I'), a tautomer thereof, or a pharmaceutically acceptable salt thereof.
- W' has the following structure:
- the sense strand comprises or is a nucleotide sequence represented by the following formula:
- X is Na or N b ;
- Na is a 2'-methoxy modified nucleotide, and
- N b is a 2' -fluoro modified nucleotide.
- the sense strand comprises or is a nucleotide sequence represented by the following formula:
- N a is a 2'-methoxy-modified nucleotide
- N b is a 2'-fluoro-modified nucleotide
- the antisense strand comprises or is a nucleotide sequence represented by the following formula:
- each X' is independently N a ' or N b ';
- N a ' is a 2'-methoxy-modified nucleotide, and
- N b ' is a 2'-fluoro-modified nucleotide;
- W' represents a 2'-methoxy-modified nucleotide or a nucleotide comprising a chemical modification represented by formula (I) or formula (I'), a tautomer or a pharmaceutically acceptable salt thereof.
- W' represents a 2'-methoxy modified nucleotide.
- W' represents a nucleotide comprising a chemical modification represented by formula (I) or formula (I'), a tautomer thereof, or a pharmaceutically acceptable salt thereof.
- W' has the structure:
- the chemical modification represented by formula (I) is selected from:
- B is selected from guanine, adenine, cytosine and uracil; in some specific embodiments, B is the same as the base when the 7th nucleotide in the 5' region of the antisense strand is not modified.
- the chemical modification represented by formula (I) is selected from:
- M is O or S;
- B is selected from guanine, adenine, cytosine or uracil; In some specific embodiments, B is the same as the base when the 7th nucleotide in the 5' region of the antisense strand is not modified.
- M is S. In some specific embodiments, M is O.
- the antisense strand comprises or is a nucleotide sequence represented by the following formula:
- N a ' is a 2'-methoxy-modified nucleotide
- N b ' is a 2'-fluoro-modified nucleotide
- W' represents a 2'-methoxy-modified nucleotide or a nucleotide comprising a chemical modification represented by formula (I), a tautomer or a pharmaceutically acceptable salt thereof.
- W' represents a 2'-methoxy modified nucleotide.
- W' represents a nucleotide comprising a chemical modification represented by formula (I), a tautomer or a pharmaceutically acceptable salt thereof.
- the chemical modification represented by formula (I) is selected from:
- B is selected from guanine, adenine, cytosine and uracil; in some specific embodiments, B is the same as the base when the 7th nucleotide in the 5' region of the antisense strand is not modified.
- the chemical modification represented by formula (I) is selected from:
- M is O or S;
- B is selected from guanine, adenine, cytosine or uracil; In some specific embodiments, B is the same as the base when the 7th nucleotide in the 5' region of the antisense strand is not modified.
- W' has the following structure:
- M is S. In some specific embodiments, M is O.
- At least one phosphate group in the sense strand and/or antisense strand is a phosphate group with a modification group, which makes the dsRNA have increased stability in a biological sample or environment; in some embodiments, the phosphate group with a modification group is a phosphorothioate group. In some embodiments, the phosphate group with a modifying group is a phosphorothioate group.
- the phosphorothioate group is present in at least one of the following positions:
- the sense strand and/or antisense strand include multiple phosphorothioate groups present in:
- the sense strand comprises or is a nucleotide sequence represented by the following formula:
- Nm represents any nucleotide modified by 2'-methoxy, such as C, G, U, A modified by 2'-methoxy
- Nf represents any nucleotide modified by 2'-fluoro, such as C, G, U, A modified by 2'-fluoro
- the lowercase letter s indicates that the two nucleotides adjacent to the left and right of the letter s are connected by a phosphorothioate group; when the lowercase letter s is the first at the 3' end, it indicates that the end of a nucleotide adjacent to the left side of the letter s is a phosphorothioate group.
- the sense strand comprises or is a nucleotide sequence represented by the following formula:
- Nm represents any nucleotide modified by 2'-methoxy, such as C, G, U, A modified by 2'-methoxy
- Nf represents any nucleotide modified by 2'-fluoro, such as C, G, U, A modified by 2'-fluoro
- the lowercase letter s indicates that the two nucleotides adjacent to the left and right of the letter s are connected by a phosphorothioate group; when the lowercase letter s is the first at the 3' end, it indicates that the end of a nucleotide adjacent to the left side of the letter s is a phosphorothioate group.
- the antisense strand comprises or is a nucleotide sequence represented by the following formula:
- Nm' represents any nucleotide modified by 2'-methoxy, such as C, G, U, A modified by 2'-methoxy
- Nf' represents any nucleotide modified by 2'-fluoro, such as C, G, U, A modified by 2'-fluoro
- the lowercase letter s indicates that there is a phosphorothioate group connection between the two nucleotides adjacent to the left and right of the letter s, and when the lowercase letter s is the first at the 3' end, it indicates that the end of a nucleotide adjacent to the left side of the letter s is a phosphorothioate group;
- W' represents a 2'-methoxy modified nucleotide or a modified nucleotide comprising a chemical modification represented by formula (I) or formula (I'), a tautomer or a pharmaceutically acceptable salt thereof.
- W' represents a 2'-methoxy modified nucleotide.
- W' represents a nucleotide comprising a chemical modification represented by formula (I) or formula (I'), a tautomer thereof, or a pharmaceutically acceptable salt thereof.
- the chemical modification represented by formula (I) or formula (I') is selected from:
- B is selected from guanine, adenine, cytosine and uracil; in some embodiments, B is the same as the base when the 7th nucleotide in the 5' region of the antisense strand is not modified.
- the chemical modification shown in formula (I) or formula (I') is selected from:
- M is O or S;
- B is selected from guanine, adenine, cytosine or uracil; In some specific embodiments, B is the same as the base when the 7th nucleotide in the 5' region of the antisense strand is not modified.
- M is S. In some specific embodiments, M is O.
- the dsRNA inhibits expression of apolipoprotein C3 (APOC3).
- APOC3 apolipoprotein C3
- the sense strand comprises at least 15 consecutive nucleotides that differ from the nucleotide sequence of SEQ ID NO:1 by no more than 3 nucleotides, and/or,
- the antisense strand comprises at least 19 consecutive nucleotides differing by no more than 3 nucleotides from the nucleotide sequence of SEQ ID NO:2;
- the sense strand comprises or is selected from the nucleotide sequence of SEQ ID NO:1, and/or, the antisense strand comprises or is selected from the nucleotide sequence of SEQ ID NO:2.
- the sense strand and antisense strand are any of the following:
- the sense strand comprises 5'-UAUUCUCAGUGCUCUCCUZ b1 -3' (SEQ ID NO: 21), and the antisense strand comprises 5'-UAGGAGAGCACUGAGAAUACU-3' (SEQ ID NO: 22);
- the sense strand comprises 5'-GCACCGUUAAGGACAAGUZ b2 -3' (SEQ ID NO: 23), and the antisense strand comprises 5'-AACUUGUCCUUAACGGUGCUC-3' (SEQ ID NO: 24);
- Z b1 is A or G; Z b2 is C or U.
- the nucleotide sequence of the sense strand of the dsRNA comprises or is selected from SEQ ID NO:3, and the nucleotide sequence of the antisense strand comprises or is selected from any nucleotide sequence in SEQ ID NO:5 to SEQ ID NO:14;
- the dsRNA is any of the following:
- the sense strand comprises the nucleotide sequence of SEQ ID NO:3, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:5;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:3, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:6;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:3, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:7;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:3, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:8;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:3, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:9;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:3, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:10;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:3, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:11;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:3, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:12;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:3, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:13;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:3, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:14.
- the dsRNA is any of the following:
- the sense strand is composed of the nucleotide sequence shown in SEQ ID NO:3, and the antisense strand is composed of the nucleotide sequence shown in SEQ ID NO:5;
- the sense strand is composed of the nucleotide sequence shown in SEQ ID NO:3, and the antisense strand is composed of the nucleotide sequence shown in SEQ ID NO:6;
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:3, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:7;
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:3, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:8;
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:3, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:9;
- the sense strand is composed of the nucleotide sequence shown in SEQ ID NO:3, and the antisense strand is composed of the nucleotide sequence shown in SEQ ID NO:10;
- the sense strand is composed of the nucleotide sequence shown in SEQ ID NO:3, and the antisense strand is composed of the nucleotide sequence shown in SEQ ID NO:11;
- the sense strand is composed of the nucleotide sequence shown in SEQ ID NO:3, and the antisense strand is composed of the nucleotide sequence shown in SEQ ID NO:12;
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:3, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:13;
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:3, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:14.
- the dsRNA is any of the following:
- the dsRNA is any of the following:
- SEQ ID NO:10 is N-(SEQ ID NO:10).
- SEQ ID NO: 11 is N-(SEQ ID NO: 11
- SEQ ID NO: 12 is
- SEQ ID NO: 13 is
- SEQ ID NO: 14 is
- s means that the two nucleotides adjacent to the left and right of the letter s are connected by a phosphorothioate group
- the dsRNA further comprises a conjugated ligand selected from a liver-targeting targeting ligand; in some embodiments, the ligand binds asialoglycoprotein receptor (ASGPR); in some embodiments, the ligand comprises a galactose cluster or a galactose derivative cluster selected from N-acetyl-galactosamine, N-trifluoroacetylgalactosamine, N-propionylgalactosamine, N-n-butyrylgalactosamine, or N-isobutyrylgalactosamine, or a combination thereof.
- ASGPR asialoglycoprotein receptor
- the dsRNA further includes a conjugated ligand
- the ligand is a compound represented by formula (II) or a pharmaceutically acceptable salt thereof
- R 13 is a single or double bond, and when When it is a single bond, R 13 is independently CR 17 R 18 , NR 16 , O or S, when When it is a double bond, R 13 is independently CR 19 or N;
- R 14 is independently CR 19 or N;
- Ring A is cycloalkyl, heterocycloalkyl, aryl or heteroaryl, present or absent, and when Ring A exists, R 15 is independently CR 19 or N, and when Ring A does not exist, R 15 is independently CR 17 R 18 , NR 16 or O;
- R' and R" are independently hydrogen, deuterium, hydroxy, alkyl, alkoxy, cycloalkyl, heterocycloalkyl, aryl or heteroaryl optionally substituted by one or more substituents selected from halogen, hydroxy, oxo, nitro and cyano;
- n1, p1 and q1 are independently 0, 1, 2, 3 or 4;
- z1, z2, z3, z4, z5, z6, z7, z8 and z9 are independently an integer of 0-10;
- r1 is an integer of 1-10.
- R 16 is hydrogen or C 1-6 alkyl
- R 13 is CR 17 R 18 , NR 16 , O or S;
- R 14 is CR 19 ;
- R 15 is independently CR 17 R 18 , NR 16 or O;
- R 17 to R 19 are independently hydrogen, deuterium or alkyl
- m1, p1 and q1 are independently 0, 1, 2, 3 or 4;
- z5, z6, z7, z8 and z9 are independently an integer of 0-10;
- r1 is an integer of 1-10.
- R 16 is hydrogen or C 1-6 alkyl
- R 13 is CR 17 R 18 or O
- R 14 is CR 19 ;
- R 15 is independently CR 17 R 18 or O;
- R 17 to R 19 are independently hydrogen or alkyl
- n 1;
- z8 and z9 are independently an integer of 0-10;
- L 2 is -(CH 2 ) j15 -(OCH 2 CH 2 ) 1-4 -(CH 2 ) j16 - or
- j15 and j16 are independently an integer of 0-4;
- r1 is 3, 4, 5 or 6.
- j11, j12, j13, and j14 are independently integers from 0-2 or 4-10. In some embodiments, j11, j12, j13, and j14 are independently 0, 1, 2, 6, 7, 8, 9, or 10.
- L can be The definition of j12 is the same as that described in the previous scheme, wherein the terminal a1 is connected to B1 , and the terminal b1 is connected to R11 .
- L can be Wherein, terminal a1 is connected to B1 , and terminal b1 is connected to R11 .
- R 11 can be a chemical bond and R 12 can be NR 16 , and the definition of R 16 is the same as described in any of the previous schemes.
- R 16 can be hydrogen or C 1-6 alkyl.
- R 16 can be hydrogen, methyl, ethyl, propyl, or isopropyl.
- R 16 can be hydrogen
- R 17 and R 18 can be hydrogen.
- R 19 can be hydrogen
- ring A when present, can be a C 6-12 aryl.
- ring A can be phenyl
- m1 can be 0 or 1.
- m1 can be 3.
- n1 can be 0 or 1.
- p1 and q1 are independently 0 or 1.
- z1, z2, z3, z4, z5, z6, z7, z8, and z9 can independently be an integer from 0-4. In some embodiments, z1, z2, z3, z4, z5, z6, z7, z8, and z9 can be 0, 1, or 2 independently.
- B 1 can be any organic compound
- B 1 can be any organic compound
- B 1 can be any organic compound
- L 2 can be -(CH 2 ) j15 -(OCH 2 CH 2 ) 1-4 -(CH 2 ) j16 -, j15 and j16 are as defined in the previous scheme.
- L2 can be in some embodiments, L2 can be Among them, the left side is connected with O atom, and the right side is connected with B1 .
- L 2 can be a C 1 -C 12 alkyl chain.
- L2 can be any organic compound
- L2 can be In some embodiments, L2 can be In some embodiments, L2 can be In some embodiments, L2 can be In some embodiments, L2 can be Among them, the a3 end is connected to the O atom, and the b3 end is connected to the B1 .
- L2 can be Among them, the a3 end is connected to the O atom, and the b3 end is connected to the B1 .
- r1 can be 3, 4, 5 or 6. In some embodiments, r1 can be 3.
- Q3 can be In some embodiments, Q3 can be Wherein, the definitions of R 13 , R 14 , R 15 and n1 are the same as those described in the previous scheme.
- R 13 , R 14 , R 15 , p1 and q1 are the same as those described in the previous scheme.
- R 13 , R 14 , R 15 , p1 and q1 are the same as those described in the previous scheme.
- Can be The definitions of p1 and q1 are the same as those described in the previous scheme.
- R 13 , R 14 , n1, p1 and q1 are the same as those described in the previous scheme.
- R 13 , R 14 , n1, p1 and q1 are the same as those described in the previous scheme.
- Can be The definitions of n1, p1 and q1 are the same as those described in the previous scheme.
- the ligand can be any of the following structures or a pharmaceutically acceptable salt thereof,
- the ligand can be any of the following structures or a pharmaceutically acceptable salt thereof,
- the ligand can be the following structure or a pharmaceutically acceptable salt thereof,
- the N-acetyl-galactosamine moiety in the above ligands can be replaced with N-trifluoroacetylgalactosamine, N-propionylgalactosamine, N-n-butyrylgalactosamine, or N-isobutyrylgalactosamine.
- the chemical modification represented by the formula (I) is B is selected from guanine, adenine, cytosine and uracil;
- the ligand is any of the following structures or a pharmaceutically acceptable salt thereof, In some embodiments, The definitions of the sense strand and the antisense strand are the same as those described in the previous scheme.
- the ligand is any of the following structures or a pharmaceutically acceptable salt thereof,
- the definitions of the sense strand and the antisense strand are as described in any of the previous schemes.
- the chemical modification represented by the formula (I) is B is selected from guanine, adenine, cytosine and uracil;
- the ligand is the following structure or a pharmaceutically acceptable salt thereof,
- the definitions of the sense strand and the antisense strand are as described in any of the previous schemes.
- the sense strand and/or antisense strand and the ligand are covalently or non-covalently linked.
- the 3' end and/or the 5' end of the sense strand is conjugated to the ligand.
- the 3' end of the sense strand is conjugated to the ligand.
- the ligand is attached to the end of the sense strand and/or the antisense strand via a phosphate group or a phosphorothioate group.
- the ligand is attached to the end of the sense strand and/or the antisense strand via a phosphodiester group or a phosphorothioate group.
- the ligand is attached to the sense and/or antisense strand ends via a phosphodiester group.
- the ligand is indirectly linked to the end of the sense strand and/or antisense strand via a phosphate group or a phosphorothioate group.
- the ligand is directly linked to the end of the sense strand and/or antisense strand via a phosphate group or a phosphorothioate group.
- the ligand is directly attached to the 3' end of the sense strand via a phosphate group or a phosphorothioate group.
- the phosphate group is a phosphate monoester group or a phosphodiester group. In some embodiments, the phosphate group is a phosphodiester group.
- the phosphorothioate group is a phosphorothioate monoester group or a phosphorothioate diester group. In some embodiments, the phosphorothioate group is a phosphorothioate diester group.
- a lipophilic group such as cholesterol can be introduced at the end of the sense strand.
- the lipophilic group includes binding to small interfering nucleic acid with a covalent bond, such as introducing cholesterol, lipoprotein, vitamin E, etc. at the end, so as to facilitate the interaction with mRNA in the cell through the cell membrane composed of lipid bilayer.
- dsRNA can also be modified by non-covalent bonds, such as binding phospholipid molecules, polypeptides, and cationic polymers through hydrophobic bonds or ionic bonds to increase stability and biological activity.
- the number of ligands includes but is not limited to: 1, 2, 3 or 4. In some embodiments, the number of the ligand is 1.
- the nucleotide sequence of the sense strand of the dsRNA comprises or is selected from SEQ ID NO:4, and the nucleotide sequence of the antisense strand comprises or is selected from any nucleotide sequence in SEQ ID NO:5 to SEQ ID NO:14;
- the dsRNA is any of the following:
- the sense strand comprises the nucleotide sequence of SEQ ID NO:4, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:5;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:4, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:6;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:4, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:7;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:4, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:8;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:4, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:9;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:4, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:10;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:4, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:11;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:4, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:12;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:4, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:13;
- the sense strand comprises the nucleotide sequence of SEQ ID NO:4, and the antisense strand comprises the nucleotide sequence of SEQ ID NO:14.
- the dsRNA is any of the following:
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:4, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:5;
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:4, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:6;
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:4, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:7;
- the sense strand is composed of the nucleotide sequence shown in SEQ ID NO:4, and the antisense strand is composed of the nucleotide sequence shown in SEQ ID NO:8;
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:4, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:9;
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:4, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:10;
- the sense strand is composed of the nucleotide sequence shown in SEQ ID NO:4, and the antisense strand is composed of the nucleotide sequence shown in SEQ ID NO:11;
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:4, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:12;
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:4, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:13;
- the sense strand is made up of the nucleotide sequence shown in SEQ ID NO:4, and the antisense strand is made up of the nucleotide sequence shown in SEQ ID NO:14.
- the dsRNA is any of the following:
- the dsRNA is any of the following:
- SEQ ID NO:10 is N-(SEQ ID NO:10).
- SEQ ID NO: 11 is N-(SEQ ID NO: 11
- SEQ ID NO: 12 is
- SEQ ID NO: 13 is
- SEQ ID NO: 14 is
- s means that the two nucleotides adjacent to the left and right of the letter s are connected by phosphorothioate groups
- the dsRNA is selected from the following structures or pharmaceutically acceptable salts thereof:
- the pharmaceutically acceptable salts can be conventional salts in the art, including but not limited to: sodium salts, potassium salts, ammonium salts, amine salts and the like.
- the dsRNA is selected from any one of TRD008043, TRD008069, TRD008042, TRD008070, TRD008071, TRD008072, TRD008073, TRD008074, TRD008075, TRD008076.
- the dsRNA is TRD008043, which has the structure
- the present disclosure provides a pharmaceutical composition comprising the above-mentioned dsRNA.
- the pharmaceutical composition further comprises one or more pharmaceutically acceptable excipients.
- Various delivery systems are known and can be used with the dsRNA or pharmaceutical compositions of the present disclosure, such as encapsulation in liposomes, microparticles, microcapsules, recombinant cells capable of expressing the compound, receptor-mediated endocytosis, constructed nucleic acid as part of a retrovirus or other vector.
- the administration of the dsRNA or the pharmaceutical composition of the present disclosure is conventional, and can be administered locally (for example, direct injection or implantation) or systemically, and can also be administered orally, rectally or parenterally.
- a dsRNA or pharmaceutical composition provided herein can be administered by injection, eg, intravenous, intramuscular, intradermal, subcutaneous, intraduodenal, or intraperitoneal injection.
- the dsRNA or pharmaceutical compositions provided by the present disclosure can be packaged in kits.
- the effective amount or effective dose of the dsRNA or the pharmaceutical composition is about 0.001 mg/kg body weight to about 200 mg/kg body weight, about 0.01 mg/kg body weight to about 100 mg/kg body weight, or about 0.5 mg/kg body weight to about 50 mg/kg body weight.
- the present disclosure provides an application of the above-mentioned dsRNA or the above-mentioned pharmaceutical composition in the preparation of medicine.
- the medicament is useful for lowering low density lipoprotein levels in a subject, or for preventing and/or treating diseases mediated by elevated triglyceride levels or elevated cholesterol levels.
- the disease is selected from hypertriglyceridemia, obesity, hyperlipidemia, abnormal lipid and/or cholesterol metabolism, atherosclerosis, cardiovascular disease, coronary artery disease, hypertriglyceridemia-induced pancreatitis, metabolic syndrome, type II diabetes, familial chylomicronemia syndrome, or familial partial lipodystrophy.
- the medicament can be used to prevent and/or treat diseases associated with APOC3 gene expression related diseases.
- the disease is selected from hypertriglyceridemia, obesity, hyperlipidemia, abnormal lipid and/or cholesterol metabolism, atherosclerosis, cardiovascular disease, coronary artery disease, hypertriglyceridemia-induced pancreatitis, metabolic syndrome, type II diabetes, familial chylomicronemia syndrome, or familial partial lipodystrophy.
- the present disclosure provides a method for preventing and/or treating a disease, which comprises administering an effective amount or an effective dose of the above-mentioned dsRNA or the above-mentioned pharmaceutical composition to a subject.
- the disease may be a disease mediated by elevated triglyceride levels or elevated cholesterol levels.
- the disease is selected from hypertriglyceridemia, obesity, hyperlipidemia, abnormal lipid and/or cholesterol metabolism, atherosclerosis, cardiovascular disease, coronary artery disease, hypertriglyceridemia-induced pancreatitis, metabolic syndrome, type II diabetes, familial chylomicronemia syndrome, or familial partial lipodystrophy.
- the disease may be a disease associated with APOC3 gene expression.
- the disease is selected from hypertriglyceridemia, obesity, hyperlipidemia, abnormal lipid and/or cholesterol metabolism, atherosclerosis, cardiovascular disease, coronary artery disease, hypertriglyceridemia-induced pancreatitis, metabolic syndrome, type II diabetes, familial chylomicronemia syndrome, or familial partial lipodystrophy.
- the present disclosure provides a method for silencing APOC3 gene or its mRNA in a cell in vivo or in vitro, which includes the step of introducing the above-mentioned dsRNA or the above-mentioned pharmaceutical composition into the cell.
- the present disclosure provides a method for inhibiting the expression of APOC3 gene or its mRNA, which comprises administering an effective amount or an effective dose of the above-mentioned dsRNA or the above-mentioned pharmaceutical composition to a subject.
- the effective amount or effective dose of the dsRNA or the pharmaceutical composition is about 0.001 mg/kg body weight to about 200 mg/kg body weight, about 0.01 mg/kg body weight to about 100 mg/kg body weight, or about 0.5 mg/kg body weight to about 50 mg/kg body weight.
- the dsRNA or pharmaceutical composition of the present disclosure can reduce the expression level of a target gene or its mRNA in a cell, cell group, tissue or subject, including: administering a therapeutically effective amount of the dsRNA or the pharmaceutical composition described herein to the subject, thereby inhibiting the expression of the target gene or its mRNA in the subject.
- the subject has previously been identified as having pathological upregulation of the target gene or mRNA thereof in the targeted cell, cell population, tissue or subject.
- the present disclosure provides a method for delivering oligonucleotides to the liver, which comprises administering to a subject an effective amount or dose of the above-mentioned dsRNA or the above-mentioned pharmaceutical composition.
- RNA interference agent which comprises the above-mentioned dsRNA or the above-mentioned pharmaceutical composition.
- the present disclosure also provides a cell comprising the aforementioned dsRNA or the aforementioned pharmaceutical composition.
- the present disclosure also provides a kit comprising the above dsRNA or the above pharmaceutical composition.
- the dsRNAs of the present disclosure are selected from siRNAs.
- the above-mentioned dsRNA or the pharmaceutical composition when the above-mentioned dsRNA or the pharmaceutical composition contacts the cells expressing the target gene, the above-mentioned dsRNA or the pharmaceutical composition can inhibit the expression of the target gene by at least 5%, at least 10%, at least 15%, at least 20%, at least 25%, at least 30%, as determined by, for example, psiCHECK activity screening and luciferase reporter gene detection method, other methods such as PCR or branched DNA (bDNA)-based methods, or protein-based methods, such as immunofluorescence analysis, such as Western Blot or flow cytometry.
- psiCHECK activity screening and luciferase reporter gene detection method other methods such as PCR or branched DNA (bDNA)-based methods, or protein-based methods, such as immunofluorescence analysis, such as Western Blot or flow cytometry.
- At least 35% at least 40%, at least 45%, at least 50%, at least 55%, at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, or at least 99%.
- the residual expression percentage of the target gene mRNA caused by the above-mentioned dsRNA or the pharmaceutical composition is not higher than 99%, not higher than 95%, not higher than 90%, not higher than 85%, not higher than 99%, not higher than 95%, not higher than 99%, not higher than 95%, not higher than 99%, not higher than 95%, not higher than 99%, not higher than 95%, not higher than 99%, not higher than 95%, not higher than 99%, not higher than 95%, not higher than 99%, not higher than 95% More than 80%, not more than 75%, not more than 70%, not more than 65%, not more than 60%, not more than 55%, not more than 50%, not more than 45%, not more than 40%, not more than 35%, not more than 30%, not more than 25%, not more than 20%, not more than 15%, or not more than 10%.
- the dsRNA when the above-mentioned dsRNA or pharmaceutical composition contacts cells expressing the target gene, the dsRNA reduces the off-target activity by at least 20%, at least 25%, at least 30%, at least 35%, at least 40%, while maintaining the target activity, as determined by, for example, psiCHECK activity screening and luciferase reporter gene detection method, other methods such as PCR or branched DNA (bDNA)-based methods, or protein-based methods, such as immunofluorescence analysis, such as Western Blot, or flow cytometry. At least 45%, at least 50%, at least 55%, at least 60%, at least 65%, at least 70%, or at least 75%.
- the dsRNA when the above-mentioned dsRNA or pharmaceutical composition is contacted with cells expressing the target gene, the dsRNA can reduce the activity of the target by at most 20%, at most 19%, at most 15%, at most 10%, at most 5%, or more than 1%, as determined by, for example, psiCHECK activity screening and luciferase reporter gene assay, other methods such as PCR or branched DNA (bDNA)-based methods, or protein-based methods, such as immunofluorescence analysis, such as Western Blot, or flow cytometry. , reducing off-target activity by at least 20%, at least 25%, at least 30%, at least 35%, at least 40%, at least 45%, at least 50%, at least 55%, at least 60%, at least 65%, at least 70%, or at least 75%.
- psiCHECK activity screening and luciferase reporter gene assay other methods such as PCR or branched DNA (bDNA)-based methods, or protein-based methods, such
- the dsRNA increases the activity of the target by at least 1%, at least 5%, at least 10%, at least 15%, at least 20%, at least 25%, at least 30%, at least 3% as determined by, for example: psiCHECK activity screening and luciferase reporter gene assay, other methods such as PCR or based on branched DNA (bDNA), or protein-based methods, such as immunofluorescence analysis, such as Western Blot, or flow cytometry.
- Compounds of the present disclosure may exist in particular geometric or stereoisomeric forms. This disclosure contemplates all such compounds, including cis and trans isomers, (-)- and (+)-enantiomers, (R)- and (S)-enantiomers, diastereomers, (D)-isomers, (L)-isomers, and racemic and other mixtures thereof, such as enantiomerically or diastereomerically enriched mixtures, all of which are within the scope of the present disclosure. Additional asymmetric carbon atoms may be present in substituents such as alkyl groups. All such isomers, as well as mixtures thereof, are included within the scope of this disclosure. Compounds of the present disclosure containing asymmetric carbon atoms can be isolated in optically pure or racemic forms. Optically pure forms can be resolved from racemic mixtures or synthesized by using chiral starting materials or reagents.
- Optically active (R)- and (S)-isomers as well as D and L-isomers can be prepared by chiral synthesis or chiral reagents or other conventional techniques. If one enantiomer of a compound of the present disclosure is desired, it can be prepared by asymmetric synthesis or derivatization with chiral auxiliary agents, wherein the resulting mixture of diastereomers is separated and the auxiliary group cleaved to provide the pure desired enantiomer.
- a diastereomeric salt is formed with an appropriate optically active acid or base, and then the diastereoisomers are resolved by conventional methods known in the art, and then the pure enantiomers are recovered.
- separation of enantiomers and diastereomers is usually accomplished by the use of chromatography using chiral stationary phases, optionally in combination with chemical derivatization (eg, carbamates from amines).
- the bond Indicates unassigned configuration, i.e. if chiral isomers exist in the chemical structure, the bond can be or both Two configurations.
- the bond configuration is not specified, i.e. the key The configuration of can be E type or Z type, or contain both E and Z configurations.
- tautomer or "tautomeric form” refers to structural isomers of different energies that can interconvert via a low energy barrier.
- proton tautomers also known as prototropic tautomers
- interconversions via migration of a proton such as keto-enol and imine-enamine, lactam-lactam isomerizations.
- An example of a lactam-lactim equilibrium is between A and B as shown below.
- the present disclosure also includes certain isotopically labeled compounds of the disclosure that are identical to those described herein, but wherein one or more atoms are replaced by an atom of an atomic mass or mass number different from that normally found in nature.
- isotopes that can be incorporated into compounds of the present disclosure include isotopes of hydrogen, carbon, nitrogen, oxygen, phosphorus, sulfur, fluorine, iodine, and chlorine, such as 2H , 3H , 11C , 13C , 14C , 13N , 15N, 15O , 17O , 18O, 31P , 32P , 35S , 18F , 123I , 125I , and 36Cl , respectively . wait.
- deuterium when a position is specifically designated as deuterium (D), the position is understood to have an abundance of deuterium (i.e., at least 10% deuterium incorporation) that is at least 1000 times greater than the natural abundance of deuterium (which is 0.015%).
- Exemplary compounds having a natural abundance greater than deuterium can be at least 1000 times more abundant deuterium, at least 2000 times more abundant deuterium, at least 3000 times more abundant deuterium, at least 4000 times more abundant deuterium, at least 5000 times more abundant deuterium, at least 6000 times more abundant deuterium, or more abundant deuterium.
- the present disclosure also includes compounds of Formula (I), Formula (I'), Formula (II) in various deuterated forms.
- deuterated forms of formula (I), formula (I '), formula (II) compounds can be synthesized using conventional techniques using deuterated reagents, deuterated reagents include but not limited to deuterated borane, trideuterioborane tetrahydrofuran solution, deuterated lithium aluminum hydride, deuterated ethyl iodide and deuterated methyl iodide, etc.
- the present disclosure also provides a method for preparing dsRNA or a pharmaceutical composition, which includes: synthesizing the dsRNA or the pharmaceutical composition described in the present disclosure.
- the "compound”, “chemical modification”, “ligand”, “dsRNA”, “nucleic acid” and “RNAi” of the present disclosure can independently exist in the form of salt, mixed salt or non-salt (such as free acid or free base).
- a salt or mixed salt it may be a pharmaceutically acceptable salt.
- “Pharmaceutically acceptable salt” may be selected from inorganic salts or organic salts, and may also include pharmaceutically acceptable acid addition salts and pharmaceutically acceptable base addition salts.
- “Pharmaceutically acceptable acid addition salt” refers to a salt formed with an inorganic or organic acid that retains the biological effectiveness of the free base without other side effects.
- Inorganic acid salts include but not limited to hydrochloride, hydrobromide, sulfate, nitrate, phosphate, etc.
- organic acid salts include but not limited to formate, acetate, 2,2-dichloroacetate, trifluoroacetate, propionate, caproate, caprylate, caprate, undecylenate, glycolate, gluconate, lactate, sebacate, adipate, glutarate, malonate, oxalate, maleate, succinate, fumarate, tartrate, citrate, palmitate, stearate, Oleate, cinnamate, laurate, malate, glutamate, pyroglutamate, aspartate, benzoate, methanesulfonate, benzenesulfonate, p-to
- “Pharmaceutically acceptable base addition salt” refers to a salt formed with an inorganic base or an organic base that can maintain the biological effectiveness of the free acid without other side effects.
- Salts derived from inorganic bases include, but are not limited to, sodium, potassium, lithium, ammonium, calcium, magnesium, iron, zinc, copper, manganese, aluminum, and the like.
- Preferred inorganic salts are ammonium, sodium, potassium, calcium and magnesium salts, preferably sodium salts.
- Salts derived from organic bases include, but are not limited to, those of primary, secondary, and tertiary amines, substituted amines, including natural substituted amines, cyclic amines, and basic ion exchange resins such as ammonia, isopropylamine, trimethylamine, diethylamine, triethylamine, tripropylamine, ethanolamine, diethanolamine, triethanolamine, dimethylethanolamine, 2-dimethylaminoethanol, 2-diethylaminoethanol, dicyclohexylamine, lysine, arginine, histidine, caffeine, Lucaine, choline, betaine, ethylenediamine, glucosamine, methylglucamine, theobromine, purine, piperazine, piperidine, N-ethylpiperidine, polyamine resin, etc.
- Preferred organic bases include isopropylamine, diethylamine, ethanolamine, trimethylamine, dicyclohexylamine,
- Alkyl refers to a saturated aliphatic hydrocarbon group, such as a straight chain and branched chain group (C 1 -C 30 alkyl) including 1 to 30 carbon atoms, another example is an alkyl group containing 1 to 6 carbon atoms (C 1 -C 6 alkyl), and another example is an alkyl group with 1 to 3 carbon atoms (C 1 -C 3 alkyl).
- Non-limiting examples include methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, sec-butyl, n-pentyl, 1,1-dimethylpropyl, 1,2-dimethylpropyl base, 2,2-dimethylpropyl and its various branched isomers, etc.
- alkenyl refers to a hydrocarbon group containing at least one double bond.
- alkenyl include, but are not limited to, ethenyl, 1-propenyl, 2-propenyl, 1-butenyl, or 2-butenyl, and various branched isomers thereof.
- alkynyl refers to a hydrocarbon group containing at least one triple bond.
- alkynyl include, but are not limited to, ethynyl, 1-propynyl, 2-propynyl, 1-butynyl, or 2-butynyl, and various branched isomers thereof.
- alkoxy refers to -O-(alkyl), wherein alkyl is as defined above.
- alkoxy include: methoxy, ethoxy, propoxy, butoxy.
- Cycloalkyl refers to a saturated or partially unsaturated monocyclic or polycyclic cyclic hydrocarbon substituent, the cycloalkyl ring contains 3 to 20 carbon atoms, preferably contains 3 to 6 carbon atoms, more preferably contains 5-6 carbon atoms.
- monocyclic cycloalkyls include cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl, cyclohexenyl, cyclohexadienyl, and the like; multicyclic cycloalkyls include spiro, fused, and bridged cycloalkyls.
- Heterocycloalkyl refers to a saturated or partially unsaturated monocyclic or multicyclic cyclic hydrocarbon substituent comprising 3 to 20 ring atoms, one or more of which is a heteroatom selected from nitrogen, oxygen, or S(O) m (where m is an integer from 0 to 2), excluding the ring portion of -OO-, -OS- or -SS-, the remaining ring atoms being carbon.
- it contains 3 to 12 ring atoms, of which 1 to 4 are heteroatoms; more preferably it contains 3 to 7 ring atoms.
- Non-limiting examples of "heterocycloalkyl” include: etc.
- the heterocycloalkyl ring may be fused to an aryl or heteroaryl ring, wherein the ring bonded to the parent structure is a heterocycloalkyl, non-limiting examples of which include: wait.
- Aryl means a 6- to 14-membered all-carbon monocyclic or fused polycyclic ring with a conjugated ⁇ -electron system (that is, a shared (ring) groups adjacent to pairs of carbon atoms, preferably 6 to 12 membered, eg phenyl and naphthyl.
- the aryl ring may be fused to a heteroaryl, heterocycloalkyl or cycloalkyl ring, where the ring bonded to the parent structure is an aryl ring, non-limiting examples of which include:
- Heteroaryl refers to a heteroaromatic system comprising 1 to 4 heteroatoms, 5 to 14 ring atoms, wherein the heteroatoms are selected from oxygen, sulfur and nitrogen.
- the heteroaryl group is preferably 6 to 12 membered, more preferably 5 or 6 membered.
- Non-limiting examples thereof include: imidazolyl, furyl, thienyl, thiazolyl, pyrazolyl, oxazolyl, isoxazolyl, pyrrolyl, tetrazolyl, pyridyl, pyrimidinyl, thiadiazole, pyrazinyl, triazolyl, indazolyl, benzimidazolyl, wait.
- the heteroaryl ring may be fused to an aryl, heterocycloalkyl or cycloalkyl ring, wherein the ring bonded to the parent structure is a heteroaryl ring, non-limiting examples of which include:
- hydroxyl refers to a -OH group.
- halogen refers to fluorine, chlorine, bromine or iodine.
- cyano refers to -CN.
- amino refers to -NH2 .
- nitro refers to -NO2 .
- the "phosphate group” can be a phosphoric monoester group, a phosphoric diester group or a phosphoric acid triester group, preferably a phosphoric diester group; the "phosphate group” in the “thiophosphoric ester group” also has the same meaning.
- a phosphorothioate group refers to a phosphorus modified by replacing a non-bridging oxygen atom with a sulfur atom.
- Acid diester base, available (M is an S atom) are used interchangeably.
- substitution means that one or more hydrogen atoms in a group, preferably at most 5, more preferably 1 to 3 hydrogen atoms are independently substituted by a corresponding number of substituents.
- two (2) hydrogens on the atom are replaced.
- group middle A moiety can be replaced by any group that enables linkage to adjacent nucleotides.
- connection when referring to a link between two molecules, means that two molecules are connected by a covalent bond or two molecules are associated by a non-covalent bond (eg, a hydrogen bond or an ionic bond), including direct connection, indirect connection.
- a non-covalent bond eg, a hydrogen bond or an ionic bond
- directly linked means that a first compound or group is linked to a second compound or group without any intervening atoms or groups of atoms.
- directly linked means that a first compound or group is linked to a second compound or group through an intervening group, compound or molecule (eg, a linking group).
- “Pharmaceutical composition” means a mixture containing one or more compounds described herein or a physiologically acceptable salt or prodrug thereof and other chemical components, as well as other components such as physiologically acceptable carriers and excipients.
- the purpose of the pharmaceutical composition is to promote the administration to the organism, facilitate the absorption of the active ingredient and thus exert biological activity.
- “Pharmaceutically acceptable excipients” include, but are not limited to, any adjuvants, carriers, glidants, sweeteners, diluents, preservatives, dyes/colorants, flavor enhancers, surfactants, wetting agents, dispersing agents, suspending agents, stabilizers, isotonic agents, solvents, or emulsifiers that have been approved by the U.S. Food and Drug Administration (FDA) to be acceptable for use in humans or livestock animals.
- FDA U.S. Food and Drug Administration
- the term “inhibit”, is used interchangeably with “reduce”, “silence”, “downregulate”, “suppress” and other similar terms, and includes any level of inhibition. Inhibition can be assessed by a reduction in the absolute or relative level of one or more of these variables compared to control levels.
- the control level can be any type of control level used in the art, such as a pre-dose baseline level or a level determined from a similar untreated or control-treated subject, cell, or sample, such as a buffer-only control or an inert control.
- the remaining expression of mRNA can be used to characterize the degree of inhibition of dsRNA on target gene expression, such as the remaining expression of mRNA is not higher than 99%, not higher than 95%, not higher than 90%, not higher than 85%, not higher Not higher than 80%, not higher than 75%, not higher than 70%, not higher than 65%, not higher than 60%, not higher than 55%, not higher than 50%, not higher than 45%, not higher than 40%, not higher than 35%, not higher than 30%, not higher than 25%, not higher than 20%, not higher than 15%, or not higher than 10%.
- an “effective amount” or “effective dose” includes an amount sufficient to ameliorate or prevent a symptom or condition of a medical condition.
- An effective amount also means an amount sufficient to allow or facilitate diagnosis.
- Effective amounts for a particular patient or veterinary subject may vary depending on factors such as the condition being treated, the general health of the patient, the method, route and dosage of administration, and the severity of side effects.
- An effective amount may be the maximum dose or dosing regimen that avoids significant side effects or toxic effects.
- subject As used herein, “subject”, “patient”, “subject” or “individual” are used interchangeably and include humans or non-human animals such as mammals such as humans or monkeys.
- the sense strand also known as SS, SS strand or sense strand
- the antisense strand also known as AS or AS strand
- the "5' region” of the sense strand or the antisense strand can be used interchangeably.
- the 2nd to 8th nucleotides in the 5' region of the antisense strand can also be replaced with the 2nd to 8th nucleotides at the 5' end of the antisense strand.
- the "3' region”, “3' end” and “3' end” of the sense strand or the antisense strand can also be used interchangeably.
- the term "the nucleotide sequence of SEQ ID NO: 1 differs by at least 15 consecutive nucleotides of no more than 3 nucleotide sequences" is intended to mean that the sense strand of dsRNA described herein comprises at least 15 consecutive nucleotides of the sense strand as shown in SEQ ID NO: 1, or differs from at least 15 consecutive nucleotides of the sense strand of SEQ ID NO: 1 by no more than 3 nucleotide sequences, optionally, by no more than 2 nucleotide sequences, optionally , differ by 1 nucleotide sequence.
- the dsRNA sense strand described herein comprises at least 16 consecutive nucleotides of the sense strand shown in SEQ ID NO: 1, or differs from at least 16 consecutive nucleotides of the sense strand shown in SEQ ID NO: 1 by no more than 3 nucleotide sequences, optionally, differs by no more than 2 nucleotide sequences, optionally, differs by 1 nucleotide sequence;
- the term "differing from the antisense strand set forth in SEQ ID NO:2 by at least 15 consecutive nucleotides of no more than 3 nucleotide sequences" is intended to mean at least 15 consecutive nucleotides of the antisense strand set forth in SEQ ID NO:2 described herein, or differing from at least 15 consecutive nucleotides of the antisense strand set forth in SEQ ID NO:2 by no more than 3 nucleotide sequences, optionally by no more than 2 nucleotide sequences, optionally by 1 Nucleotide sequence.
- G", “C”, “A”, “T” and “U” respectively represent nucleotides, which respectively contain bases of guanine, cytosine, adenine, thymidine and uracil.
- lowercase m table Indicates that the nucleotide adjacent to the left of the letter m is a methoxy-modified nucleotide; the lowercase letter f indicates that the nucleotide adjacent to the left of the letter f is a fluorine-modified nucleotide; the lowercase letter s indicates that the two nucleotides adjacent to the left and right of the letter s are connected by a phosphorothioate group.
- 2'-fluoro (2'-F) modified nucleotide refers to a nucleotide formed by replacing the hydroxyl group at the 2' position of the ribose group of the nucleotide with fluorine
- non-fluorinated modified nucleotide refers to a nucleotide or nucleotide analogue formed by replacing the hydroxyl group at the 2' position of the ribosyl group of the nucleotide with a non-fluorine group.
- 2'-methoxy (2'-OMe) modified nucleotide refers to a nucleotide in which the 2'-hydroxyl group of the ribose group is substituted with a methoxy group.
- nucleotide difference between a nucleotide sequence and another nucleotide sequence means that the base type of the nucleotide at the same position has changed between the former and the latter. For example, when a nucleotide base in the latter is A, and the corresponding nucleotide base at the same position in the former is U, C, G or T, it is determined that there is a nucleotide difference at this position between the two nucleotide sequences. In some embodiments, when the nucleotide at the original position is replaced by an abasic nucleotide or its equivalent, it can also be considered that a nucleotide difference occurs at that position.
- the terms "complementary” or “reverse complementary” are used interchangeably and have the meaning known to those skilled in the art, that is, in a double-stranded nucleic acid molecule, bases on one strand pair with bases on the other strand in a complementary manner.
- the purine base adenine always pairs with the pyrimidine base thymine (or, in RNA, uracil); the purine base guanine always pairs with the pyrimidine base cytosine.
- Each base pair consists of a purine and a pyrimidine.
- mismatch in the art means that in a double-stranded nucleic acid, the bases at the corresponding positions are not paired in a complementary form.
- dsRNA refers to a double-stranded RNA molecule capable of RNA interference, comprising a sense strand and an antisense strand.
- chemical modification includes all alterations of nucleotides by chemical means, such as the addition or removal of chemical moieties, or the substitution of one chemical moiety for another.
- base includes any known DNA and RNA base, base analogues such as purine or pyrimidine, which also includes the natural compounds adenine, thymine, guanine, cytosine, uracil, inosine and natural analogues. Base analogs can also be universal bases.
- blunt end or blunt end are used interchangeably and refer to the absence of unpaired nucleotides or nucleotide analogs at a given end of a dsRNA, ie, no nucleotide overhangs. In most cases, a dsRNA with both blunt-ended ends will be double-stranded throughout its entire length.
- the dsRNA provided in the present disclosure can be obtained by conventional preparation methods in the art (such as methods of solid-phase synthesis and liquid-phase synthesis). Among them, solid-phase synthesis has commercialized customized services.
- Modified nucleotide groups can be introduced into the dsRNAs of the present disclosure by using correspondingly modified nucleoside monomers, and methods of preparing nucleoside monomers with corresponding modifications and methods of introducing modified nucleotide groups into dsRNA are also in the art well known to the skilled person.
- Figure 1 shows the expression levels of TTR mRNA of TRD002218 and TRD007205 on the 7th day after administration.
- Figure 2 shows the expression levels of TTR mRNA on day 28 after administration of TRD002218 and TRD007205.
- Embodiment 1 Preparation of chemical modification
- Racemate compound 6 was passed through a chiral column (Daicel IE 250*4.6mm, 5 ⁇ m, A: n-hexane, B: ethanol) resolved to obtain 410mg 6A(-) and 435mg 6B(+).
- compound 5 (6.8 g, 18.581 mmol) was dissolved in pyridine (80 mL), and TMSCl (14.250 mL, 111.489 mmol) was slowly added at 0° C., and stirred for 2 h. Then Isobutyryl chloride (2.044 mL, 19.511 mmol) was added at 0°C and stirred at 25°C for 1 h. LCMS showed the reaction was complete.
- reaction solution was extracted with ethyl acetate (200mL) and water (200mL), the organic phase was dried and spin-dried, and the mixed sample was purified by forward column (PE:EtOAc column, peak at 84%) to obtain yellow oily compound 7 (12g).
- hmpNA from nucleotides synthesized from 2-hydroxymethyl-1,3-propanediol as the starting material
- (+)hmpNA(A) is obtained by solid-phase synthesis of the nucleoside phosphoramidite monomer 1-1b in Example 1.1, and the absolute configuration is (S)-hmpNA(A);
- (-)hmpNA(A) is obtained by solid-phase synthesis of nucleoside phosphoramidite monomer 1-1a in Example 1.1, and its absolute configuration is (R)-hmpNA(A);
- (+)hmpNA(G) the absolute configuration is (S)-hmpNA(G);
- (+)hmpNA(C) the absolute configuration is (S)-hmpNA(C);
- (+)hmpNA(U) the absolute configuration is (R)-hmpNA(U);
- TJ-NA067 The detection crystal is a colorless block (0.30 ⁇ 0.10 ⁇ 0.04mm3), which belongs to the monoclinic crystal system P21 space group.
- the detection crystal is a colorless block (0.30 ⁇ 0.20 ⁇ 0.10mm3), belonging to the monoclinic crystal system P21 space group.
- TJ-NA048 The detected crystal is colorless needle-shaped (0.30 ⁇ 0.04 ⁇ 0.04mm3), belonging to the monoclinic P1 space group.
- Embodiment 3 preparation NAG0052, L96
- the starting material Compound 1 was purchased from Jiangsu Beida Pharmaceutical Technology Co., Ltd.
- the synthetic route of compound NAG0052 is as follows:
- TMSCN (13.5 mL, 101 mmol) was added in one portion to a solution of compound 2 (13.0 g, 33.6 mmol) in DCM (300 mL), followed by dropwise addition of a solution of TMSOTf (9.14 mL, 50.5 mmol) in DCM (30 mL).
- the reaction solution was stirred at 20°C for 15 hours. After the reaction was completed, the system was quenched with saturated NaHCO aqueous solution (80mL), and extracted with DCM (150mL x 2).
- the compound NAG0024 (271mg, 0.151mmol) was dissolved in anhydrous THF (2mL) and anhydrous DMF (4mL), and 3A molecular sieves were added, followed by compound 12 (100mg, 0.151mmol), HOBt (25mg, 0.181mmol), DCC (38mg, 0.181mmol) and DIEA (39mg, 0.30mmol) 2 mmol).
- the reaction solution was reacted at 45°C for 16h. After LC-MS showed that the reaction was complete, it was quenched with water and filtered. After the filtrate was concentrated, it was purified by C18 reverse phase column (H 2 O/MeCN) to obtain compound 13 (210 mg, yield 57%).
- the compound NAG0052 (157mg, 0.062mmol) containing a carboxylic acid group was dissolved in anhydrous DMF (3mL). After the substrate was completely dissolved, anhydrous acetonitrile (4mL), DIEA (0.03mL, 0.154mmol, 2.5eq) and HBTU (35mg, 0.093mmol, 1.5eq) were added successively. After the reaction solution was mixed evenly, macroporous amine methyl resin (476mg, blank load was 0.41mmol/g, target load was 0.1mmol/g) was added. The reaction solution was placed on a shaker (temperature: 25° C., rotation speed: 200 rpm) and shaken overnight. The reaction solution was filtered, and the filter cake was washed successively with DCM and anhydrous acetonitrile, and the solid was collected and dried overnight in vacuum.
- the above solid was dispersed in anhydrous acetonitrile (5 mL), and pyridine (0.18 mL), DMAP (3 mg), NMI (0.12 mL) and CapB1 (2.68 mL) were added sequentially.
- the reaction solution was placed on a shaker (temperature: 25° C., rotation speed: 200 rpm) and shaken for 2 h.
- the reaction liquid was filtered, and the filter cake was washed with anhydrous acetonitrile, and the solid was collected and vacuum-dried overnight to obtain a resin with a carrier.
- the loading capacity was determined to be 0.1 mmol/g.
- NAG0052 For the NAG0052 that has been connected to the resin, use the resin as a starting point, and connect the nucleoside monomers one by one from the 3'-5' direction according to the sequence of nucleotide arrangement. Each connection of a nucleoside monomer includes four steps of deprotection, coupling, capping, oxidation or sulfurization. The operation is conventional in the art.
- the compound NAG0052 is connected to the sequence through solid-phase synthesis, and after aminolysis, the structure of NAG0052 loses some functional groups to become NAG0052'.
- the prepared dsRNA had the sense and antisense strands shown in Table 1 and Table 2.
- uppercase letters G, A, C, and U represent nucleotides containing guanine, adenine, cytosine, and uracil, respectively, lowercase letter m represents 2'-methoxy modification, lowercase letter f represents 2'-fluoro modification, and lowercase letter s represents a phosphorothioate group connection between two nucleotides adjacent to the left and right of the letter s; the same below.
- Example 5 Inhibition of dsRNA on target gene mRNA expression in vivo
- mice Male C57BL/6 mice aged 6-8 weeks were randomly divided into 6 groups, 3 at each time point, and TRD007205, reference positive TRD002218 and PBS were given to each group of mice respectively.
- mice All animals were dosed according to their total body weight, and were administered once by subcutaneous injection.
- the dose of dsRNA (based on the amount of ligand-free nucleotide) was 1 mg/kg, and the volume of administration was 5 mL/kg.
- the mice were sacrificed, the liver was collected, and stored with RNA later (Sigma Aldrich); then the liver tissue was homogenized with a tissue homogenizer, and then the total RNA of the liver tissue was extracted with a tissue RNA extraction kit (Fanzhi Medical Technology, FG0412) according to the operation steps marked in the operation manual.
- tissue RNA extraction kit Fanzhi Medical Technology, FG0412
- the total RNA was reverse-transcribed into cDNA, and the expression of TTR mRNA (transthyretin mRNA) in liver tissue was detected by real-time fluorescent quantitative PCR method.
- TTR mRNA transthyretin mRNA
- GPDH glyceraldehyde 3-phosphate dehydrogenase
- Taqman probe primers for TTR and GAPDH were used to detect the mRNA expression levels of TTR and GAPDH, respectively.
- TTR mRNA expression was calculated according to the following equation:
- TTR mRNA expression [(TTR mRNA expression of test group/GAPDH mRNA expression of test group)/(TTR mRNA expression of control group/GAPDH mRNA expression of control group)] ⁇ 100%.
- each connection of a nucleoside monomer includes four steps of deprotection, coupling, capping, oxidation or sulfurization.
- the prepared dsRNA had the sense and antisense strands shown in Table 5 and Table 6.
- NAG0052' The structure of NAG0052' is:
- A(GNA) is:
- L10 The structure of L10 is:
- the L96 structure is a
- Example 7 Inhibition of human APOC3 in primary human hepatocytes (PHH) - 7 concentration points inhibit activity
- dsRNA was screened for activity in primary human hepatocytes (PHH) using 7 concentration gradients. Each dsRNA sample was transfected with a concentration of 10 nM, 5-fold serial dilution and 7 concentration point.
- PHH was frozen and stored in liquid nitrogen. 24 hours before transfection, primary human hepatocytes (PHH) were resuscitated and inoculated in 96-well plates at a seeding density of 3 ⁇ 10 4 cells per well and 80 ⁇ L of medium per well.
- PHH primary human hepatocytes
- Lipofectamine RNAi MAX ThermoFisher, 13778150
- the gradient final concentration of dsRNA transfection is 10nM, 2nM, 0.4nM, 0.08nM, 0.016nM, 0.0032nM and 0.00064nM.
- the high-throughput cell RNA extraction kit was used to extract total cellular RNA, RNA reverse transcription experiment and quantitative real-time PCR detection to measure the mRNA level of human APOC3, and correct the mRNA level of human APOC3 according to the level of GAPDH internal reference gene.
- Inhibition rate (%) (1-remaining amount of target gene expression)*100%.
- Results are expressed as percent remaining human APOC3 mRNA expression relative to control dsRNA-treated cells. See Table 9 for the IC50 results of the inhibition rate. The experimental results in Table 9 show that TRD008043 is superior to the rest of the groups.
- TRD007972-1 has a high level of on-target inhibitory activity against the APOC3 gene in PHH cells, which is superior to TJR100385 and TJR100386.
- Example 8 psiCHECK antisense strand (AS strand) off-target level verification of dsRNA
- the plasmid contains Renilla luciferase gene and Firefly luciferase gene.
- the target sequence of dsRNA is inserted into the 3'UTR region of the Renilla luciferase gene, and the activity of dsRNA on the target sequence can be reflected by the detection of the expression of Renilla luciferase calibrated by firefly luciferase, and the detection uses Dual-Luciferase Reporter Assay System (Promega, E2940).
- the GSSM target plasmid construction rules corresponding to the dsRNA sequence are as follows:
- GSSM off-target plasmid
- HEK293A cells were cultured in DMEM high-glucose medium containing 10% fetal bovine serum at 37°C and 5% CO 2 . 24 hours before transfection, HEK293A cells were seeded in a 96-well plate at a seeding density of 8 ⁇ 10 cells per well and 100 ⁇ L of medium per well.
- cells were co-transfected with dsRNA and corresponding plasmids using Lipofectamine2000 (ThermoFisher, 11668019). Lipofectamine2000 was used in 0.2 ⁇ L per well, and the amount of plasmid transfection was 20 ng per well.
- a total of 9 concentration points were set for dsRNA, and the final concentration of the highest concentration point was 20nM. 3-fold serial dilution, 20nM, 6.6667nM, 2.2222nM, 0.7407nM, 0.2469nM, 0.0823nM, 0.0274nM, 0.0091nM, 0.0030nM. 24h after transfection, the off-target level was detected by Dual-Luciferase Reporter Assay System (Promega, E2940).
- Embodiment 9 Pharmacodynamic study of Tg mice
- At least 40 ⁇ L of plasma samples were collected 14 days prior to dosing for the first baseline measurement of HDL, LDL, TG, TC and ApoC3 in plasma during the acclimatization period.
- the second baseline was performed 7 days before administration, and at least 40 ⁇ L of plasma samples ( ⁇ 90 ⁇ L of blood) were collected for the second detection of TG, TC, HDL-C and ApoC3 in plasma; 17 animals were selected and divided into 3 groups according to the levels of TG and ApoC3 (apolipoprotein C3).
- the third baseline was performed on the morning of the day of dosing, and at least 40 ⁇ L of plasma samples ( ⁇ 90 ⁇ L of blood) were collected for TG, TC, HDL-C and ApoC3 detection. This set of data will be used as the 0-point (day 0) baseline.
- the normal saline group and the test sample were administered once, all were injected subcutaneously, and the injection volume was calculated according to the body weight before administration.
- mice after APOC3Tg mice were given a single test sample, the percentages of APOC3 in TRD008043 group mouse plasma compared with the normal saline group on the 7th day, the 14th day, the 21st day, the 28th day, the 35th day, the 42nd day and the baseline percentage of 0 days were significantly reduced. Compared with the normal saline group, there was no significant difference in the percentages of APOC3 in the plasma of mice in the TRD007972-1 group on day 35, day 42, and day 0.
- the percentage of APOC3 in plasma and the baseline percentage on day 0 in the TRD008043 group was about 3 times lower than that of TRD007972-1 on D14-D35 after a single administration.
- TRD008043 has a better effect on reducing human APOC3 than TRD007972-1.
- mice were given a single administration of the test substance and the percentage of TG in plasma and 0 day baseline ***p ⁇ 0.001, **p ⁇ 0.01, *p ⁇ 0.05, all p are compared with normal saline group, One-way ANOVA Dunnett's test
- TRD008043 still maintains the effect of significantly reducing TG in plasma compared with the normal saline group on the 28th day, but there is no significant difference between TRD007972-1 and the normal saline group.
- the percentage of TG in plasma in the TRD008043 group after a single administration and the baseline percentage on D14-D35 was about 2-4 times lower than that of the TRD007972-1 group.
- TRD008043 had a better TG-reducing effect than TRD007972-1.
- TRD008043 had a better effect on reducing TC than TRD007972-1.
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Abstract
Description
以及它们结构中的腺嘌呤被置换为鸟嘌呤、胞嘧啶、尿嘧啶或胸腺嘧啶的那些。
在一些实施方案中,
所述有义链和反义链的定义同前任一方案所述。
等等。
等。
***p<0.001,**p<0.01,*p<0.05,p均为与生理盐水组相比。One-way ANOVA
Dunnett's test。
***p<0.001,**p<0.01,*p<0.05,p均为与生理盐水组相比,One-way ANOVA
Dunnett's test
*p<0.05,p为与生理盐水组相比,One-way ANOVA Dunnett's test
Claims (21)
- 一种双链核糖核酸(dsRNA),其包含有义链和反义链,所述有义链和反义链按照5'端到3'端的方向包含连续的核苷酸,其中所述有义链第7、8和9位的核苷酸为2'-氟代修饰的核苷酸,第5位的核苷酸独立地为2'-甲氧基修饰的核苷酸或2'-氟代修饰的核苷酸,其余位置的核苷酸为2'-甲氧基修饰的核苷酸;所述反义链第2和14位的核苷酸为2'-氟代修饰的核苷酸,第4、6、8、9、10、12、16和18位的核苷酸独立地为2'-甲氧基或2'-氟代修饰的核苷酸,其余位置的核苷酸为2'-甲氧基修饰的核苷酸;所述反义链中2'-氟代修饰的核苷酸的个数为2-7个;所述反义链第7位的核苷酸位置处包含式(I)所示的化学修饰、其互变异构体或其药学上可接受的盐:所述式(I)所示的化学修饰选自以下任一结构:
B是所述反义链在其5’区域的第7位
核苷酸未被修饰时的碱基;并且所述dsRNA抑制载脂蛋白C3(APOC3)的表达。 - 如权利要求1所述的dsRNA,其中,所述有义链含有如下式所示的核苷酸:5’-NaNaNaNaNaNaNbNbNbNaNaNaNaNaNaNaNaNaNa-3’;其中,Na为2'-甲氧基修饰的核苷酸,Nb为2'-氟代修饰的核苷酸。
- 如权利要求1或2所述的dsRNA,其中,所述反义链包含如下式所示的核苷酸序列:5’-Na’Nb’Na’X’Na’X’W’X’X’X’Na’X’Na’Nb’Na’X’Na’X’Na’Na’Na’-3’;优选地,所述反义链包含如下式所示的核苷酸序列:5’-Na’Nb’Na’Na’Na’Nb’W’Na’Na’Na’Na’Nb’Na’Nb’Na’Nb’Na’Na’Na’Na’Na’-3’;5’-Na’Nb’Na’Nb’Na’Nb’W’Na’Na’Nb’Na’Nb’Na’Nb’Na’Nb’Na’Na’Na’Na’Na’-3’;5’-Na’Nb’Na’Nb’Na’Nb’W’Na’Na’Nb’Na’Na’Na’Nb’Na’Nb’Na’Nb’Na’Na’Na’-3’;5’-Na’Nb’Na’Nb’Na’Nb’W’Na’Na’Na’Na’Nb’Na’Nb’Na’Nb’Na’Nb’Na’Na’Na’-3’;5’-Na’Nb’Na’Na’Na’Nb’W’Na’Na’Nb’Na’Nb’Na’Nb’Na’Nb’Na’Nb’Na’Na’Na’-3’;5’-Na’Nb’Na’Nb’Na’Nb’W’Na’Na’Na’Na’Na’Na’Nb’Na’Nb’Na’Na’Na’Na’Na’-3’;5’-Na’Nb’Na’Na’Na’Nb’W’Na’Na’Nb’Na’Na’Na’Nb’Na’Nb’Na’Na’Na’Na’Na’-3’;5’-Na’Nb’Na’Na’Na’Na’W’Nb’Nb’Na’Na’Na’Na’Nb’Na’Nb’Na’Na’Na’Na’Na’-3’;5’-Na’Nb’Na’Na’Na’Nb’W’Na’Na’Na’Na’Na’Na’Nb’Na’Nb’Na’Na’Na’Na’Na’-3’;5’-Na’Nb’Na’Na’Na’Nb’W’Na’Na’Na’Na’Na’Na’Nb’Na’Na’Na’Na’Na’Na’Na’-3’;5’-Na’Nb’Na’Na’Na’Na’W’Na’Na’Na’Na’Na’Na’Nb’Na’Nb’Na’Na’Na’Na’Na’-3’;或,5’-Na’Nb’Na’Na’Na’Na’W’Na’Na’Na’Na’Na’Na’Nb’Na’Na’Na’Na’Na’Na’Na’-3’;其中,每个X’独立地为Na’或Nb’;Na’为2'-甲氧基修饰的核苷酸,Nb’为2'-氟代修饰的核苷酸;W’表示包含式(I)所示的化学修饰、其互变异构体或其药学上可接受的盐的核苷酸。
- 如权利要求1-3中任一项所述的dsRNA,其中,所述有义链和/或反义链中至少一个磷酸酯基为具有修饰基团的磷酸酯基,优选为硫代磷酸酯基,更优选为硫代磷酸二酯基。
- 如权利要求4所述的dsRNA,其中,所述硫代磷酸二酯基存在于以下位置中的至少一处:所述有义链的5'端第1个核苷酸和第2个核苷酸之间;所述有义链的5'端第2个核苷酸和第3个核苷酸之间;所述反义链的5'端第1个核苷酸和第2个核苷酸之间;所述反义链的5'端第2个核苷酸和第3个核苷酸之间;所述反义链的3'端第1个核苷酸和第2个核苷酸之间;以及所述反义链的3'端第2个核苷酸和第3个核苷酸之间;优选地,所述有义链和/或反义链中包括多个硫代磷酸二酯基,所述硫代磷酸二酯基存在于:所述有义链的5'端第1个核苷酸和第2个核苷酸之间;和,所述有义链的5'端第2个核苷酸和第3个核苷酸之间;和,所述反义链的5'端第1个核苷酸和第2个核苷酸之间;和,所述反义链的5'端第2个核苷酸和第3个核苷酸之间;和,所述反义链的3'端第1个核苷酸和第2个核苷酸之间;和,所述反义链的3'端第2个核苷酸和第3个核苷酸之间。
- 如权利要求1-5中任一项所述的dsRNA,其中,所述有义链包含与SEQ ID NO:1的核苷酸序列相差不超过3个核苷酸的至少15个连续核苷酸;并且所述反义链包含与SEQ ID NO:2的核苷酸序列相差不超过3个核苷酸的至少19个连续核苷酸;优选地,所述有义链包含SEQ ID NO:1所示的核苷酸序列,并且反义链包含SEQ ID NO:2所示的核苷酸序列。
- 如权利要求1-6中任一项所述的dsRNA,其中,所述反义链包含SEQ ID NO:12、SEQ ID NO:5、SEQ ID NO:6、SEQ ID NO:7、SEQ ID NO:8、SEQ ID NO:9、SEQ ID NO:10、SEQ ID NO:11、SEQ ID NO:13和SEQ ID NO:14中任一项所示的核苷酸序列;优选地,所述有义链包含SEQ ID NO:3所示的核苷酸序列。
- 如权利要求1-7中任一项所述的dsRNA,其中,所述dsRNA还包括与其缀合的配体,所述配体包含N-乙酰基-半乳糖胺。
- 如权利要求8所述的dsRNA,其中,所述配体具有如下结构或其药学上可接受的盐,
- 如权利要求8或9中任一项所述的dsRNA,其中,所述dsRNA有义链的3’端与所述配体缀合。
- 如权利要求8-10中任一项所述的dsRNA,其中,所述配体通过磷酸酯基团或硫代磷酸酯基团与所述dsRNA有义链的3’端连接;优选通过磷酸二酯基团或硫代磷酸二酯基团连接,更优选通过磷酸二酯基团连接。
- 如权利要求1-11中任一项所述的dsRNA,其中,所述反义链包含SEQ ID NO:12、SEQ ID NO:5、SEQ ID NO:6、SEQ ID NO:7、SEQ ID NO:8、SEQ ID NO:9、SEQ ID NO:10、SEQ ID NO:11、SEQ ID NO:13、SEQ ID NO:14任一项所示的核苷酸序列;优选地,所述有义链包含SEQ ID NO:4所示的核苷酸序列。
- 如权利要求1-12中任一项所述的dsRNA,其中,所述dsRNA具有如下结构或其药学上可接受的盐:
其中,Af=腺嘌呤2'-F核糖核苷;Cf=胞嘧啶2'-F核糖核苷;Uf=尿嘧啶2'-F核糖核苷;Gf=鸟嘌呤2'-F核糖核苷;Am=腺嘌呤2'-OMe核糖核苷;Cm=胞嘧啶2'-OMe核糖核苷;Gm=鸟嘌呤2'-OMe核糖核苷;Um=尿嘧啶2'-OMe核糖核苷;表示硫代磷酸二酯基,表示磷酸二酯基;NAG0052’表示(-)hmpNA(A)表示 - 一种药物组合物,其包含如权利要求1-13中任一项所述的dsRNA;任选地,所述的药物组合物还包含一种或多种药学上可接受的赋形剂。
- 一种载体,其包含如权利要求1-13中任一项所述的dsRNA。
- 一种细胞,其包含如权利要求1-13中任一项所述的dsRNA,或如权利要求15所述的载体。
- 一种如权利要求1-13中任一项所述的dsRNA、如权利要求14所述的药物组合物、如权利要求15所述的载体、或如权利要求16所述的细胞在制备药物中的应用;所述的药物用于降低受试者中的甘油三酯水平,或用于预防和/或治疗由升高的甘油三酯水平或升高的胆固醇水平介导的疾病;优选地,所述的由升高的甘油三酯水平或升高的胆固醇水平介导的疾病选自高甘油三酯血症、肥胖症、高脂血症、脂质和/或胆固醇代谢异常、动脉粥样硬化、心血管疾病、冠状动脉疾病、高甘油三酯血症诱导的胰腺炎、代谢综合征、II型糖尿病、家族性乳糜微粒血症综合征或家族性部分脂质营养不良。
- 一种抑制APOC3基因或其mRNA表达的方法,其包括向受试者给予有效量或有效剂量的如权利要求1-13中任一项所述的dsRNA、如权利要求14所述的药物组合物、如权利要求15所述的载体、或如权利要求16所述的细胞。
- 一种递送寡核苷酸至肝脏的方法,其包括向受试者给予有效量或有效剂量的如权利要求8-13中任一项所述的dsRNA、如权利要求14所述的药物组合物、如权利要求15所述的载体、或如权利要求16所述的细胞。
- 一种试剂盒,其包含如权利要求1-13中任一项所述的dsRNA、如权利要求14中任一项所述的药物组合物、如权利要求15所述的载体、或如权利要求16所述的细胞。
- 一种制备dsRNA或药物组合物的方法,其包括:合成如权利要求1-13中任一项所述dsRNA。
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