Oligomeric compounds comprising bicyclic nucleosides and having reduced toxicity
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A01N-043/04
A61K-031/70
출원번호
US-0936156
(2009-04-03)
등록번호
US-8846639
(2014-09-30)
국제출원번호
PCT/US2009/039557
(2009-04-03)
§371/§102 date
20110114
(20110114)
국제공개번호
WO2009/124295
(2009-10-08)
발명자
/ 주소
Swayze, Eric E.
Siwkowski, Andrew M.
출원인 / 주소
Isis Pharmaceutical, Inc.
대리인 / 주소
Casimir Jones, S.C.
인용정보
피인용 횟수 :
9인용 특허 :
132
초록▼
In certain embodiments, the present invention provides oligomeric compounds having favorable toxicity profiles and therapeutic indexes. Compounds of the present invention comprise bicyclic nucleosides. Certain such bicyclic nucleosides are pyrimidines that do not include a methyl group at the 5-carb
In certain embodiments, the present invention provides oligomeric compounds having favorable toxicity profiles and therapeutic indexes. Compounds of the present invention comprise bicyclic nucleosides. Certain such bicyclic nucleosides are pyrimidines that do not include a methyl group at the 5-carbon. Oligomeric compounds comprising such nucleosides are less toxic than compounds comprising bicyclic nucleosides that do include a methyl group at the 5-carbon. In certain embodiments, the present invention provides methods of preparing and using such compounds.
대표청구항▼
1. A method comprising administering to an animal an oligomeric compound comprising an oligonucleotide consisting of 15-26 linked nucleosides wherein the oligonucleotide is a gapmer, wherein each wing of the gapmer consists of 1-5 linked nucleosides and at least one nucleoside of at least one wing i
1. A method comprising administering to an animal an oligomeric compound comprising an oligonucleotide consisting of 15-26 linked nucleosides wherein the oligonucleotide is a gapmer, wherein each wing of the gapmer consists of 1-5 linked nucleosides and at least one nucleoside of at least one wing is a bicyclic nucleoside comprising a bicyclic sugar moiety and a nucleobase selected from among Formula I and Formula II: 2. The method of claim 1, wherein the at least one bicyclic nucleoside has a bicyclic sugar moiety having Formula III: wherein independently for each of the at least one bicyclic nucleoside of formula III: X is selected from among: 4′-(CR1R2)n—Y-2′;wherein each R1 and each R2 is independently selected from among: hydrogen, a halogen, an optionally substituted C1-C6 alkyl, an optionally substituted C2-C6 alkenyl, an optionally substituted C2-C6 alkynyl, an optionally substituted heteroalkyl, an optionally substituted heteroalkenyl, and an optionally substituted heteroalkynyl;Y is selected from among CR1R2, O, N(J), and S;T1 and T2 are each, independently, an internucleoside linking group linking the bicyclic nucleoside to the oligonucleotide or one of T1 and T2 is an internucleoside linking group linking the bicyclic nucleoside to the oligonucleotide and the other of T1 and T2 is hydroxyl, a protected hydroxyl, a linked conjugate group or a 5′ or 3′-terminal group;n is from 1 to 3;J is hydrogen, a halogen, an optionally substituted C1-C5 alkyl, an optionally substituted C2-C5 alkenyl, an optionally substituted C2-C5 alkynyl, an optionally substituted heteroalkyl, an optionally substituted heteroalkenyl, or an optionally substituted heteroalkynyl; andBx is the nucleobase of Formula I or Formula II. 3. The method of claim 2, wherein the oligonucleotide comprises at least one modified non-bicyclic nucleoside. 4. The method of claim 2, wherein the oligonucleotide comprises at least one bicyclic nucleoside of Formula III in each wing of the gapmer. 5. The method of claim 2, wherein at least one wing of the gapmer consists of 1-3 linked nucleosides. 6. The method of claim 1, wherein the oligonucleotide comprises at least one modified internucleoside linkage. 7. The method of claim 2, wherein the oligonucleotide is an antisense compound. 8. The method of claim 7, wherein the oligonucleotide is complementary to a target nucleic acid selected from among: target mRNA, target pre-mRNA, target microRNA, and a target non-coding RNA. 9. The method of claim 8 wherein the oligomeric compound has an activity to toxicity ratio of greater than 5 when tested in an animal. 10. The method of claim 9 comprising assessing toxicity in the animal, wherein the assessing toxicity comprises measuring the concentration of one or more liver transaminase in the serum of the animal. 11. An oligonucleotide of Formula: 5′-LDLDDLLDDLDLDLL-3′wherein, each L is a bicylcic nucleoside comprising a bicyclic sugar moiety and a nucleobase, wherein none of the nucleobases of the L nucleosides has the structure of Formula IV or Formula V: and wherein each D is an unmodified deoxynucleoside. 12. The oligonucleotide of claim 11, wherein the sugar moiety of each L nucleoside comprises a 4′-2′ bridge having the formula: 4′-CH2O-2′. 13. The method of claim 2, wherein the oligonucleotide has the formula: 5′-(L)1-5(D)6-18(L)1-5-3′wherein, each L is a bicylcic nucleoside comprising a bicyclic sugar moiety and a nucleobase, wherein none of the nucleobases of the L nucleosides has the structure of Formula IV or Formula V: and wherein each D is an unmodified deoxynucleoside. 14. A method of producing a compound having reduced toxicity when compared to a parent compound wherein the parent compound comprises at least one bicyclic nucleoside comprising a 5-methylpyrimidine, comprising: preparing a compound wherein at least one bicyclic nucleoside comprising a 5-methyl pyrimidine in the parent is instead a bicyclic nucleoside comprising an unmodified pyrimidine; andthereby producing a compound having reduced toxicity compared to the parent compound. 15. A method of treating a disease or condition in an animal comprising: administering to the animal an oligomeric compound, wherein the oligomeric compound comprises an oligonucleotide, wherein the oligonucleotide is a gapmer, wherein the wings of the gapmer comprise bicyclic nucleosides wherein none of the bicyclic nucleosides comprises a pyrimidine nucleobase comprising a methyl group at the 5-position; andthereby treating the disease or condition in the animal.
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이 특허에 인용된 특허 (132)
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