Molecular & Cellular Toxicology

The Korean Society of Toxicogenomics and Toxicoproteomics (대한독성유전 단백체학회)
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Hepatic Gene Expression Analysis of 1, 1-Dichloroethylene Treated Mice

  • Yoon, Seok-Joo (Toxicogenomics Team, Korea Institute of Toxicology) ;
  • Oh, Jung-Hwa (Toxicogenomics Team, Korea Institute of Toxicology) ;
  • Park, Han-Jin (Toxicogenomics Team, Korea Institute of Toxicology) ;
  • Kim, Yong-Bum (Clinical Pathology Team, Korea Institute of Toxicology)
  • Published : 2007.06.30
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Abstract

1, 1-dichloroethylene (DCE) is well known hepatotoxicant as a model acute hepatotoxicity and selectively injure the bile canalicular membrane of centrilobular hepatocytes. In this study, we investigated hepatic gene expression and histopathological changes in response to DCE treatment. DCE was administered once daily at 20 mg/kg up to 14 days via intraperitoneal injection. Five mice were used in each test group and were sacrificed at 1, 7, and 14 days. Serum biochemical and histopathological analysis were performed for evaluation of hepatotoxicity level. Direct bilirubin and total bilirubin activities were slightly elevated in treated group at 7 days. DCE treatment for 7 days resulted in centrilobular hepatocyte hypertrophy and hepatocyte vacuolation, and mild hepatocyte vacuolation and high hepatocyte basophilia were observed in 14 days treated group. One hundred twenty three up-regulated genes and 445 down-regulated genes with over 2-fold changes between treated and control group at each time point were used for pathway analysis. These data may contribute in understanding the molecular mechanism DCE-induced hepatotoxicity.

Keywords

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