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The tumor promoting phorbol diester, 12-0-tetradecanoylphorbol-13-acetate (TPA) increases glyoxalase I and decreases glyoxalase II activity in human polymorphonuclear leukocytes

Authors
Journal
Biochemical and Biophysical Research Communications
0006-291X
Publisher
Elsevier
Publication Date
Volume
98
Issue
2
Identifiers
DOI: 10.1016/0006-291x(81)90862-7
Disciplines
  • Biology

Abstract

Abstract Glyoxalase I and II catalyze the formation and breakdown of S-lactoylglutathione respectively. Recent studies have implicated this com-pound as a possible mediator of immune and inflammatory responses. Incubation of human polymorphonuclear leukocytes with the tumor promoter, 12-0-tetradecanoylphorbol-13-acetate has been found to affect the activities of both glyoxalase enzymes in an interrelated manner. The diester either increases the activity of glyoxalase I or decreases the activity of glyoxalase II or has both effects. It is suggested that a subsequent increase in S-lactoylglutathione might mediate some or all of the effects of the phorbol diesters.

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