Sugar and backbone-surrogate-containing oligomeric compounds and compositions for use in gene modulation
申请人:Prakash P. Thazha
公开号:US20050032068A1
公开(公告)日:2005-02-10
Compositions comprising first and second oligomers are provided wherein at least a portion of the first oligomer is capable of hybridizing with at least a portion of the second oligomer, at least a portion of the first oligomer is complementary to and capable of hybridizing to a selected target nucleic acid, and at least one of the first or second oligomers includes a modified sugar and/or backbone modification. In some embodiments the modification is a peptide nucleic acid, a peptide nucleic acid mimic, a morpholino nucleic acid, hexose sugar with amide linkage, cyclohexenyl nucleic acid (CeNA), or an acyclic backbone moiety. Oligomer/protein compositions are also provided comprising an oligomer complementary to and capable of hybridizing to a selected target nucleic acid and at least one protein comprising at least a portion of an RNA-induced silencing complex (RISC), wherein at least one nucleotide of the oligomer has a modified sugar and/or backbone modification.
提供了包含第一和第二低聚物的组合物,其中第一低聚物的至少一部分能够与第二低聚物的至少一部分杂交,第一低聚物的至少一部分与选定的靶核酸互补并能够与靶核酸杂交,第一或第二低聚物中的至少一种包含修饰的糖和/或骨架修饰。在某些实施方案中,修饰是肽核酸、肽核酸模拟物、吗啉核酸、具有酰胺连接的己糖糖、环己烯核酸(CeNA)或无环骨架分子。还提供了寡聚体/蛋白质组合物,其中包括与所选靶核酸互补并能与之杂交的寡聚体,以及至少一种由 RNA 诱导的沉默复合体(RISC)的至少一部分组成的蛋白质,其中寡聚体的至少一个核苷酸具有修饰的糖和/或骨架修饰。