PMID- 9227794 OWN - NLM STAT- MEDLINE DCOM- 19970821 LR - 20171006 IS - 0386-300X (Print) IS - 0386-300X (Linking) VI - 51 IP - 3 DP - 1997 Jun TI - Gene transfection by cationic liposomes: comparison of the transfection efficiency of liposomes prepared from various positively charged lipids. PG - 149-54 AB - We compared the transfection efficiency of four types of positively charged liposomes composed of (i) N-(alpha-trimethylammonioacetyl)-didodecyl-D-glutamate chloride (TMAG), dilauroylphosphatidylcholine (DLPC), and dioleoylphosphatidylethanolamine (DOPE) (1:2:2 molar ratio); (ii) 3 beta [N-(N', N'-dimethylaminoethane)-carbamoyl] cholesterol (DC-Chol) and DOPE (3:2 molar ratio); (iii) dimethyldioctadecylammonium bromide (DDAB) and DOPE (1:2.2 molar ratio); (iv) N-[1-(2,3-dioleyloxy) propyl]-N,N,N-trimethylammonium chloride (DOTMA) and DOPE (1:1, w/w; lipofectin). Luciferase gene was used as a reporter gene. Among the cationic lipsomes used, the liposomes composed of TMAG, DOPE and DLPC showed a much higher efficiency of plasmid DNA entrapment than the other cationic liposomes tested. In the absence of serum, the cationic multilamellar vesicles (MLV) and small unilamellar vesicles (SUV) composed of TMAG, DOPE and DLPC gave highly efficient transfection. On the other hand, MLV, dehydration-rehydration vesicles (DRV), and SUV liposomes prepared with the mixtures of DC-Chol and DOPE showed similar levels of transfection efficiency. However, the cationic liposomes composed of DDAB and DOPE showed inferior efficiency, whether in the form of DRV, SUV or MLV. The transfection efficiency of lipofectin was also low. In the presence of serum, on the other hand, a considerable (about 30-50%) amount of transfection activity was still observed at 10% fetal calf serum in the cationic MLV and SUV composed of TMAG, DOPE and DLPC. Cationic MLV, composed of TMAG, DOPE and DLPC, Cationic MLV, composed of TMAG, DOPE and DLPC, can transfect plasmid DNA, not only in the adherent cell lines but also, in the suspension cell lines. These findings indicate that the transfection efficiency of cationic liposomes is affected by the lipid composition, the type of liposome, or the presence or absence of serum. They also indicate that the cationic liposomes containing TMAG, DOPE and DLPC are efficient vectors for gene transfer into cells. FAU - Zhao, D D AU - Zhao DD AD - Department of Cell Chemistry, Okayama University Medical School, Japan. FAU - Watarai, S AU - Watarai S FAU - Lee, J T AU - Lee JT FAU - Kouchi, S AU - Kouchi S FAU - Ohmori, H AU - Ohmori H FAU - Yasuda, T AU - Yasuda T LA - eng PT - Comparative Study PT - Journal Article PL - Japan TA - Acta Med Okayama JT - Acta medica Okayama JID - 0417611 RN - 0 (Cations) RN - 0 (Glutamates) RN - 0 (Lipids) RN - 0 (Liposomes) RN - 0 (Phosphatidylethanolamines) RN - 0 (Quaternary Ammonium Compounds) RN - 104162-48-3 (N-(1-(2,3-dioleyloxy)propyl)-N,N,N-trimethylammonium) RN - 131897-06-8 (didodecyl N-(alpha-trimethylammonioacetyl)glutamate) RN - 137056-72-5 (3-(N-(N',N'-dimethylaminoethane)carbamoyl)cholesterol) RN - 2462-63-7 (dioleoyl phosphatidylethanolamine) RN - 251IW5I21C (dimethyldioctadecylammonium) RN - 9007-49-2 (DNA) RN - 97C5T2UQ7J (Cholesterol) SB - IM MH - Animals MH - COS Cells MH - Cations/*pharmacology MH - Cats MH - Cattle MH - Cell Line MH - Cholesterol/analogs & derivatives/pharmacology MH - DNA/drug effects/metabolism MH - Glutamates/pharmacology MH - Humans MH - Kidney/cytology MH - Lipids/chemistry/genetics/*pharmacology MH - Liposomes/chemical synthesis/chemistry/*pharmacology MH - Mice MH - Phosphatidylethanolamines/pharmacology MH - Quaternary Ammonium Compounds/pharmacology MH - Sheep MH - Transfection/*drug effects EDAT- 1997/06/01 00:00 MHDA- 1997/06/01 00:01 CRDT- 1997/06/01 00:00 PHST- 1997/06/01 00:00 [pubmed] PHST- 1997/06/01 00:01 [medline] PHST- 1997/06/01 00:00 [entrez] AID - 10.18926/AMO/30793 [doi] PST - ppublish SO - Acta Med Okayama. 1997 Jun;51(3):149-54. doi: 10.18926/AMO/30793.