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    • 11. 发明申请
    • RNAI AGENTS COMPRISING UNIVERSAL NUCLEOBASES
    • 包含通用核苷酸的RNAi药剂
    • WO2009020771A2
    • 2009-02-12
    • PCT/US2008/071010
    • 2008-07-24
    • ALNYLAM PHARMACEUTICALS, INC.MANOHARAN, MuthiahRAJEEV, Kallanthottathil, G.
    • MANOHARAN, MuthiahRAJEEV, Kallanthottathil, G.
    • C12N15/09C07H21/00
    • C07F9/65515C07F9/65586C07F9/6561C07H21/02C12N15/111C12N2310/14C12N2310/331C12N2320/34
    • One aspect of the present invention relates to an oligonucleotide agent comprising at least one universal nucleobase. In certain embodiments, the universal nucleobase is difluorotolyl, nitroindolyl, nitropyrrolyl, or nitroimidazolyl. In a preferred embodiment, the universal nucleobase is difluorotolyl. In certain embodiments, the oligonucleotide is double-stranded. In certain embodiments, the oligonucleotide is single-stranded. Another aspect of the present invention relates to a method of altering the expression level of a target in the presence of target sequence polymorphism. In a preferred embodiment, the oligonucleotide agent alters the expression of different alleles of a gene. In another preferred embodiment, the oligonucleotide agent alters the expression level of two or more genes. In another embodiment, the oligonucleotide agent alters the expression level of a viral gene from different strains of the virus. In another embodiment, the oligonucleotide agent alters the expression level of genes from different species.
    • 本发明的一个方面涉及包含至少一个通用核碱基的寡核苷酸试剂。 在某些实施方案中,通用核碱基是二氟甲苯基,硝基吲哚基,硝基吡咯基或硝基咪唑基。 在一个优选的实施方案中,通用核碱基是二氟甲苯基。 在某些实施方案中,寡核苷酸是双链的。 在某些实施方案中,寡核苷酸是单链的。 本发明的另一方面涉及在靶序列多态性存在下改变靶标表达水平的方法。 在优选的实施方案中,寡核苷酸试剂改变基因的不同等位基因的表达。 在另一个优选实施方案中,寡核苷酸试剂改变两种或更多种基因的表达水平。 在另一个实施方案中,寡核苷酸试剂改变来自不同病毒株的病毒基因的表达水平。 在另一个实施方案中,寡核苷酸试剂改变来自不同物种的基因的表达水平。
    • 13. 发明申请
    • OLIGONUCLEOTIDES COMPRISING A MODIFIED OR NON-NATURAL NUCLEOBASE
    • 包含改性或非天然核苷酸的寡核苷酸
    • WO2006093526A2
    • 2006-09-08
    • PCT/US2005/025967
    • 2005-07-21
    • ALNYLAM PHARMACEUTICALSMANOHARAN, MuthiahXIE, JieRAJEEV, Kallanthottathil, G.
    • MANOHARAN, MuthiahXIE, JieRAJEEV, Kallanthottathil, G.
    • C07H21/00A61K31/7115C07F9/65515C07F9/65586C07F9/6561C07H21/02Y02A50/385Y02A50/387Y02A50/393Y02A50/395Y02A50/411Y02A50/463Y02A50/465Y02A50/467
    • One aspect of the present invention relates to a double-stranded oligonucleotide comprising at least one non-natural nucleobase. In certain embodiments, the non-natural nucleobase is difluorotolyl, nitroindolyl, nitropyrrolyl, or nitroimidazolyl. In a preferred embodiment, the non-natural nucleobase is difluorotolyl. In certain embodiments, only one of the two oligonucleotide strands comprising the double-stranded oligonucleotide contains a non-natural nucleobase. In certain e4mbodiments, both of the oligonucleotide strands comprising the double-stranded oligonucleotide independently contain a non-natural nucleobase. In certain embodiments, the oligonucleotide strands comprise at least one modified sugar moiety. Another aspect of the present invention relates to a single-stranded oligonucleotide comprising at least one non-natural nucleobase. In a preferred embodiment, the non-natural nucleobase is difluorotolyl. In certain embodiments, the ribose sugar moiety that occurs naturally in nucleosides is replaced with a hexose sugar, polycyclic heteroalkyl ring, or cyclohexenyl group. In certain embodiments, at least one phosphate linkage in the oligonucleotide has been replaced with a phosphrothioate linkage.
    • 本发明的一个方面涉及包含至少一种非天然核碱基的双链寡核苷酸。 在某些实施方案中,非天然核碱基是二氟苯甲酰基,硝基吲哚基,硝基吡咯基或硝基咪唑基。 在优选的实施方案中,非天然核碱基是二氟苯甲酰基。 在某些实施方案中,包含双链寡核苷酸的两条寡核苷酸链中只有一条含有非天然核碱基。 在某些实施方案中,包含双链寡核苷酸的两条寡核苷酸链都独立地含有非天然核碱基。 在某些实施方案中,寡核苷酸链包含至少一个修饰的糖部分。 本发明的另一方面涉及包含至少一种非天然核碱基的单链寡核苷酸。 在优选的实施方案中,非天然核碱基是二氟苯甲酰基。 在某些实施方案中,在核苷中天然存在的核糖部分被己糖,多环杂烷基环或环己烯基取代。 在某些实施方案中,寡核苷酸中的至少一个磷酸键被磷酸硫酸酯键取代。