Selective inhibition by 4-hydroxynonenal of sphingosine-stimulated phospholipase D in NIH 3T3 cells.
In fibroblasts, the mitogenic effects of sphingosine involves a rapid rise in the cellular content of phosphatidic acid (PtdOH) which may be due to the stimulation of phospholipase D, or inhibition of PtdOH phosphohydrolase, or both. Here, we demonstrate that in fibroblasts, 4-hydroxynonenal is a selective inhibitor of sphingosine-stimulated phospholipid hydrolysis, and it also inhibits sphingosine-induced formation of PtdOH.
Kiss
Z
Z
Hormel Institute, University of Minnesota, Austin 55912.
Crilly
K S
KS
Rossi
M A
MA
Anderson
W B
WB
D016475:3T3 Cells; D000447:Aldehydes / Q000494:pharmacology*; D000818:Animals; D004789:Enzyme Activation; D006868:Hydrolysis; D051379:Mice; D010712:Phosphatidic Acids / Q000378:metabolism; D010713:Phosphatidylcholines / Q000378:metabolism; D010714:Phosphatidylethanolamines / Q000378:metabolism; D010739:Phospholipase D / Q000378:metabolism*; D013110:Sphingosine / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology
D000447:Aldehydes; D010712:Phosphatidic Acids; D010713:Phosphatidylcholines; D010714:Phosphatidylethanolamines; D010739:Phospholipase D; C027576:4-hydroxy-2-nonenal; D013110:Sphingosine; D013755:Tetradecanoylphorbol Acetate