Cytoprotective effect of reduced glutathione in hydrogen peroxide-induced endothelial cell injury

S. H. Chen, H. L. Wu, M. T. Lin, C. J. Jen, L. Y C Wing, H. Y. Lei, C. J. Tsao, W. C. Chang

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The kinetic effects of hydrogen peroxide (H2O2) on cultured endothelial cells isolated from bovine carotid artery were studied. The cytoprotective effects of glutathione (GSH) on H2O2-induced cell injury were also investigated. H2O2-induced a dose- and time-dependent cell injury in cultured endothelial cells. H2O2-induced cell injury was blocked by simultaneous treatment by catalase, but not by superoxide dismutase. H2O2 also induced endogenous PGI2 biosynthesis, and the maximum PGI2 production was reached after 1 h treatment. Stimulation of PGI2 production was parallel with arachidonate release from H2O2-treated cells. However the prostaglandin biosynthesis enzyme activity in cells was inhibited by H2O2 treatment. When the cells were treated with GSH, the intracellular GSH reached a plateau after 3 h treatment. Both H2O2-induced cell injury and PGI2 production were significantly inhibited by the 3 h pretreatment with GSH. The cytoprotective effect of GSH was completely inhibited by buthionine sulfoximine which is a specific inhibitor of γ-glutamylcysteine synthetase. The results indicate that the cytoprotective effect of GSH on H2O2-induced cell injury in cultured bovine carotid artery endothelial cells depends on the increase in intracellular GSH content.

Original languageEnglish
Pages (from-to)299-305
Number of pages7
JournalProstaglandins Leukotrienes and Essential Fatty Acids
Volume45
Issue number4
DOIs
Publication statusPublished - 1992
Externally publishedYes

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Endothelial cells
Epoprostenol
Hydrogen Peroxide
Glutathione
Endothelial Cells
Biosynthesis
Wounds and Injuries
Glutamate-Cysteine Ligase
Buthionine Sulfoximine
Enzyme activity
Carotid Arteries
Catalase
Superoxide Dismutase
Prostaglandins
Cultured Cells
Cells
Kinetics
Enzymes

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Endocrinology, Diabetes and Metabolism

Cite this

Cytoprotective effect of reduced glutathione in hydrogen peroxide-induced endothelial cell injury. / Chen, S. H.; Wu, H. L.; Lin, M. T.; Jen, C. J.; Wing, L. Y C; Lei, H. Y.; Tsao, C. J.; Chang, W. C.

In: Prostaglandins Leukotrienes and Essential Fatty Acids, Vol. 45, No. 4, 1992, p. 299-305.

Research output: Contribution to journalArticle

Chen, S. H. ; Wu, H. L. ; Lin, M. T. ; Jen, C. J. ; Wing, L. Y C ; Lei, H. Y. ; Tsao, C. J. ; Chang, W. C. / Cytoprotective effect of reduced glutathione in hydrogen peroxide-induced endothelial cell injury. In: Prostaglandins Leukotrienes and Essential Fatty Acids. 1992 ; Vol. 45, No. 4. pp. 299-305.
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