Diepoxybutane cytotoxicity on mouse germ cells is enhanced by in vivo glutathione depletion: A flow cytometric approach

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Abstract

Diepoxybutane is one of the key metabolites of butadiene, a compound of high environmental and occupational concern. The effects of diepoxybutane on mouse reproductive cells have been previously characterized by flow cytometry demonstrating a specific, dose-dependent cytotoxicity for differentiating spermatogonia. It is known that butadiene epoxides, deriving from butadiene bioactivation by cytochrome P450-monooxygenase systems, can be enzymatically conjugated to glutathione by glutathione S-transferases. In this paper, we tested the hypothesis whether a pretreatment with phorone, a well-known intracellular glutathione depleter, would enhance the germ cell cytotoxicity of diepoxybutane. Results were consistent with an active role played in vivo by the glutathione-detoxifying system, as diepoxybutane cytotoxicity was increased after chemically induced reduction of glutathione concentration.
Original languageEnglish
Pages (from-to)37 - 43
Number of pages7
JournalMutation Research - Fundamental and Molecular Mechanisms of Mutagenesis
Volume397
Issue number1
DOIs
Publication statusPublished - 16 Jan 1998
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Molecular Biology
  • Health, Toxicology and Mutagenesis

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