Polylysine enhances cationic liposome-mediated transfection of the hepatoblastoma cell line Hep G2.

Autor: Mack KD; Department of Microbiology, University of California, Davis 95616, USA., Walzem RL, Lehmann-Bruinsma K, Powell JS, Zeldis JB
Jazyk: angličtina
Zdroj: Biotechnology and applied biochemistry [Biotechnol Appl Biochem] 1996 Jun; Vol. 23 (3), pp. 217-20.
Abstrakt: Plasmid DNA condensed by polylysine enhanced cationic-liposome-mediated transfection of Hep G2 cells. The luciferase expression plasmid pCMVL was complexed with the polycation poly-L-lysine and mixed with liposomes that contained a 1:1 molar ratio of the cationic lipid 1,2-dioleoyloxy-3-trimethyl-ammoniumpropane, with the neutral phospholipid 1,2-di-(cis-9-octadecenoyl)-sn-glycero-3-phosphoethanolamine. Polylysine enhanced cationic-liposome-mediated transfection of the hepatoblastoma cell line Hep G2 9-fold compared with pCMVL complexed alone with liposomes. The ratio of cationic to anionic charge of the polylysine-pCMVL complexes, and the quantity of cationic liposomes, are important determinants for optimal transfection of Hep G2 cells.
Databáze: MEDLINE