In vivo and in vitro nephrotoxicity of the cysteine conjugate of hexachlorobutadiene

D. R. Jaffe, C. D. Hassall, K. Brendel, A Jay Gandolfi

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Abstract

Hexachlorobutadiene (HCBD), a renal toxin and carcinogen is thought to require bioactivation to exert toxicity. The chemically synthesized cysteine conjugate of structurally similar halogenated hydrocarbons, trichloroethylene, chlorotrifluoroethylene, and chlorodifluoroethylene, have been shown to be nephrotoxic. Hence the cysteine conjugate of HCBD, S-pentachlorobuta-1,3-dienyl cysteine (PCBC), was assessed for potential nephrotoxicity. Active acid and base transport in isolated rabbit renal tubules was used to screen nephrotoxicity. A dose-dependent decrease in acid and base transport was observed after incubation with PCBC. At 10-5 M PCBC transport was similar to that in controls, while at 10-3 M PCBC completely inhibited active transport. In addition, in vivo exposure of Swiss-Webster male mice caused dose-dependent damage in the pars recta region of the proximal tubules (5-25 mg/kg ip). Genotoxicity in renal tissue was studied by using alkaline elution to detect DNA single-strand breaks and total cross-links. No DNA single-strand breaks were observed in isolated rabbit renal tubules after exposure to 10-3 to 10-5 M PCBC. However, at 10-3 M PCBC there was some evidence of DNA cross-links. Therefore if cysteine conjugates of HCBD are formed in vivo, they could account for the toxicity observed with exposure to HCBD.

Original languageEnglish (US)
Pages (from-to)857-867
Number of pages11
JournalJournal of Toxicology and Environmental Health
Volume11
Issue number4-6
StatePublished - 1983

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Cysteine
DNA
Toxicity
Carcinogens
Trichloroethylene
Acids
Kidney
Single-Stranded DNA Breaks
Tissue
Halogenated Hydrocarbons
Rabbits
hexachlorobutadiene
In Vitro Techniques
Active Biological Transport
Rectum

ASJC Scopus subject areas

  • Pollution
  • Toxicology

Cite this

In vivo and in vitro nephrotoxicity of the cysteine conjugate of hexachlorobutadiene. / Jaffe, D. R.; Hassall, C. D.; Brendel, K.; Gandolfi, A Jay.

In: Journal of Toxicology and Environmental Health, Vol. 11, No. 4-6, 1983, p. 857-867.

Research output: Contribution to journalArticle

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