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Glutathione depletion inhibits IL-1 beta-stimulated nitric oxide production by reducing inducible nitric oxide synthase gene expression

  • M A Nikulina
  • , H U Andersen
  • , A E Karlsen
  • , M I Darville
  • , Decio Laks Eizirik
  • , T Mandrup-Poulsen
20 Citationer (Scopus)

Abstract

L-buthionine-S,R-sulfoximine (BSO), an inhibitor of GSH synthesis, decreased IL-1 beta-induced nitrite release in rat islets and purified rat beta cells, nitrite formation and iNOS gene promoter activity in insulinoma cells, and iNOS mRNA expression in rat islets. The thiol depletor diethyl maleate (DEM) and an inhibitor of glutathione reductase 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) reduced IL-1 beta-stimulated nitrite release in islets. We conclude that GSH regulates IL-1 beta-induced NO production in islets, purified beta cells and insulinoma cells by modulation of iNOS gene expression.

OriginalsprogEngelsk
TidsskriftCytokine
Vol/bind12
Udgave nummer9
Sider (fra-til)1391-4
Antal sider4
ISSN1043-4666
DOI
StatusUdgivet - sep. 2000
Udgivet eksterntJa

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