Lipid carrier proteins and ethanol.
Ethanol has a pronounced effect on lipid homeostasis. It is our overall hypothesis that certain lipid carrier proteins are targets of acute and chronic ethanol exposure and that perturbation of these proteins induces lipid dysfunction leading to cellular pathophysiology. These proteins include both intracellular proteins and lipoproteins. This paper examines recent data on the interaction of ethanol with these proteins. In addition, new data are presented on the stimulatory effects of ethanol on low-density-lipoprotein (LDL)-mediated cholesterol uptake into fibroblasts and direct perturbation of the LDL apolipoprotein, apolipoprotein B. A cell model is presented that outlines potential mechanisms thought to be involved in ethanol perturbation of cholesterol transport and distribution.
Wood
W G
WG
Geriatric Research, Education and Clinical Center, VA Medical Center, Minneapolis, MN 55417, USA. Woodx002@tc.umn.edu
Avdulov
N A
NA
Chochina
S V
SV
Igbavboa
U
U
D000818:Animals; D001055:Apolipoproteins B / Q000187:drug effects; D002352:Carrier Proteins / Q000187:drug effects / Q000378:metabolism*; D002784:Cholesterol / Q000378:metabolism; D004305:Dose-Response Relationship, Drug; D000431:Ethanol / Q000494:pharmacology*; D005347:Fibroblasts / Q000378:metabolism; D006801:Humans; D050356:Lipid Metabolism; D008077:Lipoproteins, LDL / Q000187:drug effects / Q000494:pharmacology; D008954:Models, Biological; D051381:Rats
D001055:Apolipoproteins B; D002352:Carrier Proteins; D008077:Lipoproteins, LDL; D000431:Ethanol; D002784:Cholesterol