申请人:SIRNA THERAPEUTICS, INC.
公开号:US20150057373A1
公开(公告)日:2015-02-26
Disclosed herein are novel cationic lipids that can be used in combination with other lipid components such as cholesterol and PEG-lipids to form lipid nanoparticles with oligonucleotides. The cationic lipids can demonstrate enhanced efficacy along with lower liver toxicity as a result of lower lipid levels in the liver. The present invention employs low molecular weight cationic lipids with one short lipid chain coupled with inclusion of hydrolysable functionality in the lipid chains to enhance the efficiency and tolerability of in vivo delivery of siRNA.
本文披露了一种新型阳离子脂质,可与其他脂质成分(如胆固醇和PEG-脂质)结合使用,形成含寡核苷酸的脂质纳米粒子。阳离子脂质可以表现出增强的功效,同时由于肝脏中脂质水平较低,可以降低肝毒性。本发明采用低分子量的阳离子脂质,其中一个短脂链与脂链中的可水解功能的包含物相结合,以增强siRNA的体内递送效率和耐受性。