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. 1982 Mar;79(5):1621–1625. doi: 10.1073/pnas.79.5.1621

Arachidonic acid metabolism in glutathione-deficient macrophages.

C A Rouzer, W A Scott, O W Griffith, A L Hamill, Z A Cohn
PMCID: PMC346027  PMID: 6803245

Abstract

Mouse resident peritoneal macrophages were treated with the glutathione (GSH) synthesis inhibitor buthionine sulfoximine to deplete intracellular GSH. The arachidonic acid metabolites released by the GSH-depleted macrophages in response to a zymosan challenge were analyzed by HPLC. Buthionine sulfoximine treatment resulted in inhibition of both prostaglandin E2 and leukotriene C synthesis that was directly related to the degree of GSH depletion. Macrophages in which GSH levels were reduced to 3% of normal exhibited reductions to 4% and 1%, respectively, in PGE2 and LTC formation. The total quantity of cyclooxygenase metabolites secreted by GSH-deficient macrophages was identical to that of control cells as a result of increased synthesis of prostacyclin and, to a lesser extent, 12-L-hydroxy-5,8,10-heptadecatrienoic acid. Total lipoxygenase products were decreased, however; increased formation of hydroxyicosatetraenoic acids only partially compensated for the deficit in leukotriene C production. These findings extent our earlier observations on the inhibition of leukotriene C synthesis in GSH-depleted macrophages and confirm with intact cells the previously suggested role of GSH in prostaglandin E2 formation.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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