A neutral envelope-type nanoparticle containing pH-responsive and SS-cleavable lipid-like material as a carrier for plasmid DNA.

Akita, Hidetaka; Ishiba, Ryohei; Hatakeyama, Hiroto; Tanaka, Hiroki; Sato, Yusuke; Tange, Kota; Arai, Masaya; Kubo, Kazuhiro et al. · Adv Healthc Mater · 2013

basic_science · Level V

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Abstract

SS-cleavable proton-activated lipid-like material (ssPalm) functions as a key element in a lipid nanoparticle in which pDNA is encapsulated. The ssPalm contains dual sensing motifs that can respond to the intracellular environment; a proton-sponge unit (tertiary amines) that functions in response to an acidic environment (endosome/lysosome), and disulfide bonding that can be cleaved in a reducing environment (cytosol).

Medical subject headings