Provided are internalizing nucleic acid molecules (“iNA”) that can bind and internalize into target cells containing a cell surface molecule to which the iNA can bind; an iNA further modified to include at least one chemical modification, wherein the at least one modification is selected from the group consisting of a chemical substitution in the nucleic acid sequence of the iNA, incorporation of a modified nucleotide into the iNA, conjugation to a linker, and conjugation to at least one effector moiety comprising one or more of a drug or a detectable moiety or a combination thereof; and methods of using modified iNA to deliver at least one effector moiety into the target cells.
本发明提供了内化核酸分子("iNA"),它能与含有细胞表面分子的靶细胞结合并内化到靶细胞中;进一步修饰以包括至少一种
化学修饰的 iNA,其中至少一种修饰选自由 iNA 核酸序列中的
化学取代、将修饰的核苷酸掺入 iNA、与连接体连接、与至少一种效应分子连接,该效应分子包括药物或可检测分子中的一种或多种或其组合;以及使用修饰的 iNA 将至少一种效应分子递送到靶细胞中的方法。