Study on transfection efficiency mediated by the complexes of lipoplexes and anionic liposomes

Key words: 
• anionic liposomes /
• cationic liposomes /
• complexes /
• transfection efficiency /
• cytotoxicity

Abstract: Objective To evaluate the efficiency of different complexes of lipoplexes and anionic liposomes which mediated gene transfection to hepatoma cells(HepG2). Methods Cationic liposomes encapsulating report gene were prepared by reverse-evaporation method,which were pipetted into anionic liposomes to form complexes. The zeta potentials were measured by Zetasizer Nano ZS. Report gene expressing green fluorescent protein(GFP) was used in order to evaluate transfection efficiency of different complexes. MTT was used to measure the cytotoxicity. Results The anionic liposomes contributed to lower zeta potentials while could not effect the capability of pDNA load efficiency. The transfection efficiency of complexes was lower than that of cationic liposomes, however,the complexes presented higher cell viability. Conclusion In relation to the low cytotoxicity of the complexes, their transfection efficiency was relatively high.