The glutathione depleting agent diethylmaleate prolongs renal allograft survival

Avery B. Nathens, Ori D. Rotstein, Julia J. Jones, Alan P B Dackiw, Reginald Gorczynski

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Introduction. Intercellular adhesion molecule 1 (ICAM-1) plays an important role in mediating allograft rejection through its role in cellular trafficking and as an important costimulatory signal mediating T cell activation. We have previously reported that systemic administration of the glutathione (GSH) depleting agent diethylmaleate (DEM) prevents upregulation of ICAM-1 in various inflammatory models, suggesting that this agent may offer benefit in preventing allograft rejection. Thus we evaluated the effects of DEM in a murine model of renal transplantation. Methods. Kidneys from C57BL/6 mice were transplanted into MHC incompatible C3H mice. Donors were treated with DEM 1 h prior to sacrifice, whereas recipients received DEM 1 h following transplantation. Animals were followed until the time of death. In separate studies, renal ICAM-1 mRNA expression was evaluated by polymerase chain reaction and the CD4+ T cell cytokine profile evaluated in a mixed lymphocyte reaction using C3H responder splenocytes and C57BL/6 stimulator cells. Results. Pretreatment with DEM increased survival from 18.9 ± 3.6 to 30.6 ± 10 days (P < 0.05). This increase in survival was associated with a reduction in renal ICAM-1 mRNA expression. Mixed lymphocyte cultures derived from animals pretreated with DEM demonstrated a reduction in the Th1 cytokines IFN-γ and IL-2 and an increase in the Th2 cytokines IL-4 and IL- 10. Conclusion. Administration of DEM with consequent systemic GSH depletion significantly reduces allograft ICAM-1 expression and prolongs graft survival. Although speculative, a shift from a Th1 to a Th2 cytokine response raises the possibility that tolerance induction plays a role in prolonged allograft survival.

Original languageEnglish (US)
Pages (from-to)75-79
Number of pages5
JournalJournal of Surgical Research
Volume77
Issue number1
DOIs
StatePublished - Jun 1998

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Keywords

  • Allograft
  • Diethylmaleate
  • Glutathione
  • ICAM-1
  • Tolerance

ASJC Scopus subject areas

  • Surgery

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