Abstract
A DNA-transfection protocol has been developed that makes use of a synthetic cationic lipid, N-[1-(2,3-dioleyloxy)propyl]-N,N,N-trimethylammonium chloride (DOTMA). Small unilamellar liposomes containing DOTMA interact spontaneously with DNA to form lipid-DNA complexes with 100% entrapment of the DNA, DOTMA facilitates fusion of the complex with the plasma membrane of tissue culture cells, resulting in both uptake and expression of the DNA. The technique is simple, highly reproducible, and effective for both transient and stable expression of transfected DNA. Depending upon the cell line, lipofection is from 5- to greater than 100-fold more effective than either the calcium phosphate or the DEAE-dextran transfection technique.
MeSH Terms
Animals
Calcium Phosphates
Cell Line
DEAE-Dextran
Genetic Engineering/methods
Indicators and Reagents
L Cells/cytology
Liposomes
Quaternary Ammonium Compounds/chemical synthesis
Simian virus 40/genetics
Transfection
Chemicals
Calcium Phosphates
Indicators and Reagents
Liposomes
Quaternary Ammonium Compounds
N-(1-(2,3-dioleyloxy)propyl)-N,N,N-trimethylammonium
DEAE-Dextran
Authors & Affiliations
9 authors, click to expand affiliations / ORCID
Felgner P L
Institute of Bio-Organic Chemistry, Syntex Research, Palo Alto, CA 94303.
Gadek T R
Holm M
Roman R
Chan H W
Wenz M
Northrop J P
Ringold G M
Danielsen M
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