The present invention relates to the use of modified nucleotides and single or double stranded oligonucleotides having at least one of said modified nucleotides for performing RNA interference. The modified nucleotides are selected from 6-membered ring containing nucleotides such as hexitol, altritol, O-substituted or O-alkylated altritol, cyclohexenyl, ribo-cyclohexenyl and O-substituted or O-alkylated ribo-cyclohexenyl nucleotides. The present invention also relates to novel modified nucleosides or nucleotides and to the use of the novel modified nucleosides and nucleotides in single or double stranded oligonucleotides for RNA interference, antisense therapy or other applications.
本发明涉及使用修饰核苷酸和至少含有其中一种修饰核苷酸的单链或双链寡核苷酸来进行RNA干扰。修饰核苷酸从包含六元环的核苷酸中选择,例如己糖醇,阿尔特糖醇,O-取代或O-烷基化的阿尔特糖醇,
环己烯基,
核糖-
环己烯基和O-取代或O-烷基化的
核糖-
环己烯基核苷酸。本发明还涉及新型修饰核苷或核苷酸以及在单链或双链寡核苷酸中使用新型修饰核苷和核苷酸进行RNA干扰、反义治疗或其他应用。