3Beta [N-(N',N'-dimethylaminoethane)-carbamoyl] cholesterol (DC-Chol)-mediated gene delivery to primary rat neurons: characterization and mechanism.

Abstract:

:Cationic lipid formulations consisting of 3beta [N-(N', N'-dimethylaminoethane)-carbamoyl] cholesterol (DC-Chol) and the helper lipid dioleoylphosphatidylethanolamine (DOPE) (1.5: 1 molar ratio) were prepared by solvent evaporation and sized by high pressure extrusion. Liposomes made of 1:1 molar ratio 1 ,2-dioleoyl-3-trimethyl-ammonium-propane (DOTAP)/DOPE were used as controls in the study. The two formulations were characterized and evaluated for their efficiency in transfecting SKnSH (neuroblastoma) and primary rat neuronal cell lines. DC-Chol/DOPE liposomes were more efficient at transfecting both the SKnSH and the primary rat neuronal cells and also less toxic compared to the DOTAP/DOPE liposomes. The cellular-associated signal of rhodamine-labeled DC-Chol/DOPE liposomes into SKnSH and primary rat neuronal cells was higher than the rhodamine-labeled DOTAP/DOPE liposomes. These results demonstrate that DC-Chol/DOPE cationic liposomes provide an efficient vehicle for the delivery of plasmids into SKnSH and primary neuronal cells compared to DOTAP/DOPE liposomes. DC-Chol/DOPE liposomes may provide a good non-viral candidate for transfecting primary rat neuronal cells.

journal_name

Neurochem Res

journal_title

Neurochemical research

authors

Ajmani PS,Hughes JA

doi

10.1023/a:1021012727796

keywords:

subject

Has Abstract

pub_date

1999-05-01 00:00:00

pages

699-703

issue

5

eissn

0364-3190

issn

1573-6903

journal_volume

24

pub_type

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