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Cited by 764

The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.

CYP2E1 and CYP4A as microsomal catalysts of lipid peroxides in murine nonalcoholic steatohepatitis

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Leclercq, Isabelle A., Farrell, Geoffrey C., Field, Jaqueline, Bell, David R., Gonzalez, Frank J., Robertson, Graham R.·2000·Journal of Clinical Investigation

Abstract

Nonalcoholic steatohepatitis (NASH) and alcoholic liver disease have similar pathological features. Because CYP2E1 plays a key role in alcoholic liver disease with its ability to stimulate lipid peroxidation, we tested the proposal that CYP2E1 could also be a factor in the development of NASH. In a dietary model - mice fed a methionine- and choline-deficient (MCD) diet - liver injury was associated with both induction of CYP2E1 and a 100-fold increase in hepatic content of lipid peroxides. Microsomal NADPH-dependent lipid oxidases contributed to the formation of these lipid peroxides, and in vitro inhibition studies demonstrated that CYP2E1 was the major catalyst. To further define the role of CYP2E1 as an initiator of oxidative stress in NASH, Cyp2e1(-/-)mice were administered the MCD diet. CYP2E1 deficiency neither prevented the development of NASH nor abrogated the increased microsomal NADPH-dependent lipid peroxidation, indicating the operation of a non-CYP2E1 peroxidase pathway. In Cyp2e1(-/-) mice with NASH (but not in wild-type mice), CYP4A10 and CYP4A14 were upregulated. Furthermore, hepatic microsomal lipid peroxidation was substantially inhibited by anti-mouse CYP4A10 antibody in vitro. These results show that experimental NASH is strongly associated with hepatic microsomal lipid peroxidation. CYP2E1, the main enzyme associated with that process in wild-type mice, is not unique among P450 proteins in catalyzing peroxidation of endogenous lipids. We have now identified CYP4A enzymes as alternative initiators of oxidative stress in the liver.

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Metadata

Authors
Leclercq, I. A., Farrell, G. C., Field, J., Bell, D. R., Gonzalez, F. J., & Robertson, G. R.
Venue
Journal of Clinical Investigation
Published
2000-04-15
Volume
105
Issue
8
Pages
1067-1075
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2169624083
Cited by
764
References
4
FWCI
18.80
Type
journal article
Language
en
Open access
bronze

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