Journal
CATALYSIS COMMUNICATIONS
Volume 12, Issue 2, Pages 71-75Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2010.08.003
Keywords
Enzyme catalysis; Cytochrome P450; Toxin; Metabolism
Categories
Funding
- National Basic Research Program of China (973 Program) [2009CB118802]
- Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme
- Program for New Century Excellent Talents in University [NCET-08-0643]
- Guangdong Province Universities and Colleges Special Funds for Talents Introduction
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Contamination of food by T 2 toxin a trichothecene mycotoxin poses a serious threat to human health We report the identification of cytochrome P450 3A22 (CYP3A22) responsible for 3' hydroxylation of T-2 and HT-2 in pigs The present study shows that T-2 toxin significantly induces CYP3A22 expression in primary piglet hepatocytes Moreover recombinant pig CYP3A22 converted T-2 toxin into TC-1 (3'-OH T-2 toxin) and HT 2 toxin into TC-3 (3'-OH HT-2 toxin) in vitro These results suggest that pig CYP3A22 primarily eliminates T-2 and HT-2 toxins by 3'-hydroxylation of isovaleryl groups Therefore CYP3A22 is critical for xenobiotic metabolism and endogenous biochemical biotransformation of trichothecene mycotoxin in porcine reservoirs (C) 2010 Elsevier B V All rights reserved
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