Inhibition of Urethane-Induced Carcinogenicity in Cyp2e1-/- in Comparison to Cyp2e1+/+ Mice
نویسندگان
چکیده
منابع مشابه
Increased bioaccumulation of urethane in CYP2E1-/- versus CYP2E1+/+ mice.
Urethane is a fermentation by-product and a potent animal carcinogen. Human exposure to urethane occurs through consumption of alcoholic beverages and fermented foods. Recently, CYP2E1 was identified as the primary enzyme responsible for the metabolism of [(14)C]carbonyl-labeled urethane. Subsequently, attenuation of urethane-induced cell proliferation and genotoxicity in CYP2E1-/- mice was rep...
متن کاملIncreased bioaccumulation of Urethane in CYP2E1-/- vs. CYP2E1+/+ Mice
Urethane is a fermentation by-product and a potent animal carcinogen. Human exposure to urethane occurs through consumption of alcoholic beverages and fermented foods. Recently, CYP2E1 was identified as the primary enzyme responsible for the metabolism of C-carbonyl-labeled urethane. Subsequently, attenuation of urethaneinduced cell proliferation and genotoxicity in CYP2E1-/mice was reported. P...
متن کاملCYP2E1*5B, CYP2E1*6, CYP2E1*7B, CYP2E1*2, and CYP2E1*3 allele frequencies in iranian populations.
BACKGROUND CYP2E1 encodes an enzyme which is mainly involved in bioactivation of potential carcinogens such as N-nitrosamines. Polymorphisms in the gene have been reported to be associated with cancer. The aim of this study was to evaluate genotype distributions and allele frequencies of five CYP2E1 polymorphisms in Iran. MATERIALS AND METHOD Two hundred healthy individuals of an Iranian popu...
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CYP2E1 is widely accepted as the sole form of cytochrome P450 responsible for alcohol-mediated increases in acetaminophen (APAP) hepatotoxicity. However, we previously found that alcohol [ethanol and isopentanol (EIP)] causes increases in APAP hepatotoxicity in Cyp2e1(-/-) mice, indicating that CYP2E1 is not essential. Here, using wild-type and Cyp2e1(-/-) mice, we investigated the relative rol...
متن کاملCytochrome P450 2E1 (CYP2E1) is the principal enzyme responsible for urethane metabolism: comparative studies using CYP2E1-null and wild-type mice.
Urethane ([carbonyl-(14)C]ethyl carbamate) is a fermentation by-product in alcoholic beverages and foods and is classified as reasonably anticipated to be a human carcinogen. Early studies indicated that while CYP2E1 is involved, esterases are the primary enzymes responsible for urethane metabolism. Using CYP2E1-null (KO) mice, current studies were undertaken to elucidate CYP2E1's contribution ...
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ژورنال
عنوان ژورنال: Toxicological Sciences
سال: 2006
ISSN: 1096-6080,1096-0929
DOI: 10.1093/toxsci/kfl158