Cationic lipo-thiophosphoramidates for gene delivery: synthesis, physico-chemical characterization and gene transfection activity – comparison with lipo-phosphoramidates
作者:Aurore Fraix、Tristan Montier、Nathalie Carmoy、Damien Loizeau、Laure Burel-Deschamps、Tony Le Gall、Philippe Giamarchi、Hélène Couthon-Gourvès、Jean-Pierre Haelters、Pierre Lehn、Paul-Alain Jaffrès
DOI:10.1039/c0ob00981d
日期:——
of the DNA binding ability of the liposomes have completed the physico-chemical characterizations of the cationic lipids studied. Finally, the cationic lipids 3a–b and 7a–c have been evaluated as synthetic vectors for gene transfection into a variety of mammalian cell lines. The lipo-thiophosphoramidate 7a proved to be an efficient and low toxicity synthetic vector even when used at low lipid to DNA
本文报道了阳离子脂硫代硫代氨基甲酸酯的合成,一种设计用于基因递送的阳离子脂质的新家族。这类新的脂质的极性不如其氧化等同的脂质-磷酰胺酸盐。荧光各向异性和FRET用于确定脂磷酰胺3a–b和脂硫磷酰胺7a–b的流动性和融合性。纳米物体(脂质体和脂质复合物)的大小和ζ电势的测定以及脂质体的DNA结合能力的测定已经完成了所研究的阳离子脂质的物理化学表征。最后,阳离子脂质3a–b和7a–c已被评估为用于基因转染到多种哺乳动物细胞系中的合成载体。脂硫代磷酸氨基甲酸酯7a被证明是一种有效且低毒性的合成载体,即使以较低的脂质与DNA电荷比使用也是如此。