[12]aneN3-based lipid with naphthalimide moiety for enhanced gene transfection efficiency
摘要:
Three cationic lipids derived from [12]aneN3 modified with naphthalimide (1a), oleic acid (1b) and octadecylamine (1c) were designed and synthesized. In vitro transfection showed that all these liposomes can deliver plasmid DNA into the tested cell lines. Among these liposomes, 1a gave the best transfection efficiency (TE) in A549 cells, which was higher than that of lipofectamine 2000. More importantly, the TE of 1a was dramatically increased in the presence of 10% serum. These results suggested that 1a might be a promising non-viral gene vector, and also give further insight for developing novel high performance gene delivery agents.
Synthesis of mono- and di-[12]aneN3 ligands and study on the catalytic cleavage of RNA model 2-hydroxypropyl-p-nitrophenyl phosphate with their metal complexes
作者:Zhi-Fo Guo、Hao Yan、Zhi-Fen Li、Zhong-Lin Lu
DOI:10.1039/c1ob05942d
日期:——
The ortho arrangement of the two [12]aneN3 units and the presence of 5- or 2-positioned substituents in the benzene ring as well as N-methylation of [12]aneN3 units greatly reduced the catalytic activities due to the steric effects. These results clearly indicate that the structures of the linker between two [12]aneN3 units play very important role in their catalytic synergistic effects.
Three cationic lipids derived from [12]aneN3 modified with naphthalimide (1a), oleic acid (1b) and octadecylamine (1c) were designed and synthesized. In vitro transfection showed that all these liposomes can deliver plasmid DNA into the tested cell lines. Among these liposomes, 1a gave the best transfection efficiency (TE) in A549 cells, which was higher than that of lipofectamine 2000. More importantly, the TE of 1a was dramatically increased in the presence of 10% serum. These results suggested that 1a might be a promising non-viral gene vector, and also give further insight for developing novel high performance gene delivery agents.