The invention relates to iRNA agents, which preferably include a monomer in which the ribose moiety has been replaced by a moiety other than ribose. The inclusion of such a monomer can allow for modulation of a property of the iRNA agent into which it is incorporated, e.g., by using the non-ribose moiety as a point to which a ligand or other entity, e.g., a lipophilic moiety. e.g., cholesterol, is is directly, or indirectly, tethered. The invention also relates to methods of making and using such modified iRNA agents.
本发明涉及iRNA(干扰RNA)代理,其中最好包括一个单体,其中
核糖基团被替换为
核糖外的基团。包括这样的单体可以允许调节iRNA代理的某个性质,例如,通过使用非
核糖基团作为
配体或其他实体(例如,亲脂性基团,如
胆固醇)的点来直接或间接地连接。本发明还涉及制备和使用这样的修饰iRNA代理的方法。