Single-stranded nucleic acid molecule for regulating expression of gene having delivering function
申请人:Bonac Corporation
公开号:US09663784B2
公开(公告)日:2017-05-30
The invention provides a single-stranded nucleic acid capable of inhibiting expression of a target gene having a delivery function. The nucleic acid contains, from the 5′-side to the 3′-side, a 5′-side region (Xc), a linker region (Lx), an inner region (Z), a linker region (Ly) and a 3′-side region (Yc) in this order, wherein the inner region (Z) is constituted by linkage of the inner 5′-side region (X) and the inner 3′-side region (Y), the 5′-side region (Xc) is complementary to the inner 5′-side region (X), the 3′-side region (Yc) is complementary to the inner 3′-side region (Y), at least one of the inner region (Z), the 5′-side region (Xc) and the 3′-side region (Yc) comprises an expression inhibitory sequence that inhibits expression of a target gene, and at least one of the 5′-terminus, the 3′-terminus, the linker region (Lx) and the linker region (Ly) is bound to a bio-related substance.
该发明提供了一种能够抑制具有传递功能的靶基因表达的单链核酸。该核酸从5'-端到3'-端依次包含一个5'-端区域(Xc)、一个连接区域(Lx)、一个内部区域(Z)、一个连接区域(Ly)和一个3'-端区域(Yc),其中内部区域(Z)由内部5'-端区域(X)和内部3'-端区域(Y)连接而成,5'-端区域(Xc)与内部5'-端区域(X)互补,3'-端区域(Yc)与内部3'-端区域(Y)互补,至少其中之一的内部区域(Z)、5'-端区域(Xc)和3'-端区域(Yc)包含可抑制靶基因表达的表达抑制序列,且至少其中之一的5'-端、3'-端、连接区域(Lx)和连接区域(Ly)与生物相关物质结合。