Genetic Toxicity Test of 1,2-Dibromoethane by Ames, Micronucleus, Comet Assays and Microarray Analysis

  • Kim, Ki-Y. (College of Pharmacy, Ewha Womans University) ;
  • Kim, Ji-H. (College of Pharmacy, Ewha Womans University) ;
  • Kwon, Kyoung-J. (College of Pharmacy, Ewha Womans University) ;
  • Go, Seo-Y. (College of Pharmacy, Ewha Womans University) ;
  • Min, Kyung-N. (College of Pharmacy, Ewha Womans University) ;
  • Lee, Woo-S. (Department of Toxicological Researches, National Institute of Toxicological Research, Korea Food and Drug Administration) ;
  • Park, Sue-N. (Department of Toxicological Researches, National Institute of Toxicological Research, Korea Food and Drug Administration) ;
  • Shee, Yhun-Y. (College of Pharmacy, Ewha Womans University)
  • Published : 2006.12.30

Abstract

1,2-Dibromoethane(DBE) has been widely used as a soil fumigant, an additive to leaded gasoline and an industrial solvent. In this study, we have carried out in vitro genetic toxicity test of 1,2-dibromoethane and microarray analysis of differentially expressed genes in response to 1,2-dibromoethane. 1,2-Dibromoethane showed mutations in base substitution strain TA1535 both with and without exogenous metabolic activation. 1,2-Dibromoethane showed mutations in frame shift TA98 both with and without exogenous metabolic activation. 1,2-Dibromoethane showed DNA damage based on single cell gel/comet assay in L5178Y cells both with and without exogenous metabolic activation. 1,2-Dibromoethane increased micronuclei in CRO cells both with and without exogenous metabolic activation. Microarray analysis of gene expression profiles in L5178Y cells in response to 1,2-dibromoethane selected differentially expressed 241 genes that would be candidate biomarkers of genetic toxic action of 1,2-dibromoethane.

Keywords

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