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Molecular & cellular toxicology v.3 no.4, 2007년, pp.231 - 237  
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Toxicogenomic Study to Identify Potential New Mechanistic Markers on Direct-Acting Mutagens in Human Hepatocytes (THLE-3)

Kim, Youn-Jung   (Cellular and Molecular Toxicology Laboratory, Korea Institute of Science & Technology  ); Song, Mi-Kyung   (Cellular and Molecular Toxicology Laboratory, Korea Institute of Science & Technology  ); Song, Mee   (Cellular and Molecular Toxicology Laboratory, Korea Institute of Science & Technology  ); Ryu, Jae-Chun   (Cellular and Molecular Toxicology Laboratory, Korea Institute of Science & Technology  );
  • 초록

    Exposure to DNA-damaging agents can elicit a variety of stress-related responses that may alter the expression of genes associated with numerous biological pathways. We used 19 k whole human genome chip to detect gene expression profiles and potential signature genes in human normal hepatocytes (THLE-3) by treatment of five direct acting mutagens, furylfuramide (AF-2), N-nitroso-N-methylurea (MNU), methylmethanesulfonate (MMS), 4-nitroquinoline-N-oxide (4-NQO) and 2-nitrofluorene (2NF) of the $IC_{20}$ concentration for 3 h. Fifty one up-regulated common genes and 45 down-regulated common genes above 1.5-fold by five direct-acting mutagens were identified by clustering analysis. Many of these changed genes have some association with apoptosis, control of cell cycle, regulation of transcription and signal transduction. Genes related to these functions, as TP73L, E2F5, MST016, SOX5, MAFB, LIF, SII3, TFIIS, EMR1, CYTL1, CX3CR1 and RHOH are up-regulated. Down-regulated genes are ALOX15B, xs155, IFITM1, BATF, VAV2, CD79A, DCDC2, TNFSF8 and KOX8. We suggest that gene expression profiling on mutagens by toxicogenomic analysis affords promising opportunities to reveal potential new mechanistic markers of genotoxicity.


  • 주제어

    Mutagen .   DNA damage .   Toxicogenomics .   Gene expression analysis .   THLE-3 cell.  

  • 참고문헌 (15)

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