The Effect of Hepatocarcinogen o-Aminoazotoluene on Induction of Mouse Liver Tyrosine Aminotransferase by Glucocorticoids

o-Aminoazotoluene (OAT) suppressed more than twofold the glucocorticoid induction of tyrosine aminotransferase in the liver of SWR mice, which are sensitive to the hepatocarcinogenic effect of OAT, but not in resistant AKR mice. The hormone- and DNA-binding activities of the glucocorticoid receptor...

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Bibliographic Details
Published in:Molecular biology (New York) 2001-05, Vol.35 (3), p.392
Main Authors: Kropachev, K Yu, Kaledin, V I, Timofeeva, O A, Il'nitskaya, S I, Vasil'eva, E D, Plisov, S Yu, Rychkova, N A, Filipenko, M L, Merkulova, T I
Format: Article
Language:English
Subjects:
Liver
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Summary:o-Aminoazotoluene (OAT) suppressed more than twofold the glucocorticoid induction of tyrosine aminotransferase in the liver of SWR mice, which are sensitive to the hepatocarcinogenic effect of OAT, but not in resistant AKR mice. The hormone- and DNA-binding activities of the glucocorticoid receptor were not affected in either strain. The OAT-dependent suppression proved to be associated with a decrease in the DNA-binding activity of HNF3 in liver cell extracts. The content of the HNF3 mRNA did not change, suggesting a posttranscriptional effect of OAT.[PUBLICATION ABSTRACT]
ISSN:0026-8933
1608-3245
DOI:10.1023/A:1010478829564