A stable aqueous dispersion which comprises a cationic lipid which is a molecule which comprises a cholesterol-derived lipophilic group, a linker bond which is hydrolyzable by cellular enzymes and relatively resistant to base-catalyzed hydrolysis, a spacer arm and a cationic amino group, and an appropriate co-lipid. The invention also includes the cationic lipids and mammalian plasmid DNA or other cells in admixture with the aqueous dispersion.
一种稳定的
水相分散体,包括一种阳离子脂质,该脂质是一种分子,包括一个由
胆固醇衍生的亲脂性基团,一个可被细胞酶
水解的连接键,相对抗碱催化
水解,一个间隔臂和一个阳离子
氨基团,以及适当的共脂质。该发明还包括阳离子脂质和哺乳动物质粒DNA或其他细胞与
水相分散体混合的组合物。