Enhanced intracellular siRNA delivery using bioreducible lipid-like nanoparticles.

Wang, Ming; Alberti, Kyle; Varone, Antonio; Pouli, Dimitria; Georgakoudi, Irene; Xu, Qiaobing · Adv Healthc Mater · 2014

basic_science · Level V

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Abstract

A new library of lipid-like nanoparticles (lipidoids) comprising disulfide bond is developed for siRNA delivery. Bioreducible lipidoids deliver siRNA with greater efficiency than nonbioreducible lipidoids with similar chemical structures. A siRNA release investigation, as well as an intracellular siRNA trafficking study, reveals that the degradation of bioreducible lipidoid in a strongly reductive intracellular environment boosts siRNA release and enhances siRNA gene knockdown efficiency.

Medical subject headings