Stearic acid stimulates FA ethyl ester synthesis in HepG2 cells exposed to ethanol.

Abstract:

:FA ethyl esters (FAEE) are nonoxidative metabolites of ethanol produced by the esterification of FA and ethanol. FAEE have been implicated as mediators of ethanol-induced organ damage in vivo and in vitro, and are markers of ethanol intake. Upon ethanol intake, FAEE are synthesized in the liver and pancreas in significant quantities. There is limited information on the stimulation of FAEE synthesis upon addition of exogenous FA in vitro. HepG2 cells were incubated with ethanol alone, ethanol with 25 microM linoleate, and ethanol with 25 microM stearate. The amount of FAEE in human hepatoblastoma (HepG2) cells was determined 1-3 h after ethanol and FA addition. Stearate increased the FAEE concentration in HepG2 cells when incubated with the cells for 1 h, whereas linoleate did not increase the cellular FAEE concentration at any time. Ethyl palmitate, ethyl stearate, and ethyl oleate were the predominant FAEE species identified in all cases, independent of the specific supplemental FA added to the medium.

journal_name

Lipids

journal_title

Lipids

authors

Hasaba A,Cluette-Brown JE,Laposata M

doi

10.1007/s11745-006-1160-3

subject

Has Abstract

pub_date

2003-10-01 00:00:00

pages

1051-5

issue

10

eissn

0024-4201

issn

1558-9307

journal_volume

38

pub_type

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