Fenthion and terbufos induce DNA damage, the expression of tumor-related genes, and apoptosis in HEPG2 cells

Jong C. Wu, You Cheng Hseu, Jui Shan Tsai, Lei Chin Chen, Soi M. Chye, Chin H. Chen, Ssu Ching Chen

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

This study investigates the effects of fenthion and terbufos, two organophosphorous pesticides, on DNA damage, tumor-related gene expression, and apoptosis in HepG2 cells. We found that exposure to concentrations ranging from 50 to 200 μM of fenthion and terbufos for 2 hr caused significant death in HepG2 cells. Both compounds induced DNA damage in a concentration-dependent manner as measured using the alkaline comet assay. Tumor-related genes (jun, myc, and fos) and apoptosis-related genes (socs3, tnfaip3, ppp1r15a, and nr4a1) were up-regulated by both compounds. Finally, both compounds induced apoptosis. The results demonstrate that both terbufos and fenthion induce DNA damage and should be considered potentially hazardous to humans. Environ. Mol. Mutagen., 2011. © 2011 Wiley-Liss, Inc.

Original languageEnglish
Pages (from-to)529-537
Number of pages9
JournalEnvironmental and Molecular Mutagenesis
Volume52
Issue number7
DOIs
StatePublished - Aug 2011

Keywords

  • Apoptosis
  • Comet assay
  • Fenthion
  • Terbufos
  • Tumor-related genes

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