Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
, 471 (2), 116-25

Metabolism of Eicosapentaenoic and Docosahexaenoic Acids by Recombinant Human Cytochromes P450

Affiliations

Metabolism of Eicosapentaenoic and Docosahexaenoic Acids by Recombinant Human Cytochromes P450

Maude Fer et al. Arch Biochem Biophys.

Abstract

Epoxidation and hydroxylation of arachidonic acid (AA) are both catalyzed by cytochromes P450s (CYPs). The oxidized metabolites are known to be involved in the regulation of vascular tone and renal function. By using a panel of 15 human recombinant CYPs, this study demonstrates that other polyunsaturated long-chain fatty acids (PUFA-LC), especially the omega3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are also epoxidised. The regioselectivity of epoxidation of four PUFA-LC by CYPs was investigated. Among the several CYPs tested, CYP2C9/2C19 and 1A2 were the most efficient in EPA and DHA epoxidations. It ensued that 10muM of these two omega3 fatty acids decreased by more than 80% and 60%, respectively, the formation by CYP2C9 of AA-epoxidised derivatives. These findings suggest that some physiological effects of omega3 fatty acids may be due to a shift in the generation of active epoxidised metabolites of AA through CYP-mediated catalysis.

Similar articles

See all similar articles

Cited by 46 articles

See all "Cited by" articles

Publication types

MeSH terms

LinkOut - more resources

Feedback