<i>In vitro</i> transfection efficiencies of T-shaped spermine-based cationic lipids with identical and nonidentical tails under high serum conditions
作者:Chopaka Thongbamrer、Purichaya Teerakantrakorn、Ussanee Nongpong、Nuttapon Apiratikul、Wanlapa Roobsoong、Nawapol Kunkeaw、Wang Nguitragool、Jetsumon Sattabongkot、Boon-ek Yingyongnarongkul
DOI:10.1039/d2ob02129c
日期:——
spermine-based cationic lipids with identical and nonidentical hydrophobic tails having variable carbon lengths (from C10 to C18) were designed and synthesized. These lipids were characterized, and their structure–activity relationships were determined for DNA binding and transfection ability of these compounds when formulated as cationic liposomes. These liposomes were then applied as non-viral vectors to transfect
设计并合成了具有可变碳长度(从 C10 到 C18)的相同和不同疏水尾巴的 T 形精胺基阳离子脂质。对这些脂质进行了表征,并确定了它们在配制为阳离子脂质体时的 DNA 结合和转染能力的结构-活性关系。然后将这些脂质体用作非病毒载体,用编码绿色荧光蛋白的质粒 DNA 转染 HEK293T、HeLa、PC3、H460、HepG2 和 Calu'3 细胞系。具有不同尾巴的ST9、ST12和ST13可以在无血清条件下将 DNA 输送到 HEK293T 细胞中高达 60%。脂质ST15在 40% 的血清条件下,在 HEK293T 和 HeLa 细胞中发现带有不同尾巴的基因是一种有效的基因转移剂。除了它们的低细胞毒性外,这些 lipoplexes 还表现出比市售转染剂 Lipofectamine 3000 更高的转染效率。