Phospholipase C-mediated hydrolysis of phosphatidylcholine is an important step in PDGF-stimulated DNA synthesis.

TitlePhospholipase C-mediated hydrolysis of phosphatidylcholine is an important step in PDGF-stimulated DNA synthesis.
Publication TypeJournal Article
Year of Publication1990
AuthorsLarrodera P, Cornet ME, Diaz-Meco MT, Lopez-Barahona M, Diaz-Laviada I, Guddal PH, Johansen T, Moscat J
JournalCell
Volume61
Issue6
Pagination1113-20
Date Published1990 Jun 15
ISSN0092-8674
KeywordsAnimals, Bacillus cereus, Cells, Cultured, DNA, DNA Replication, Drug Synergism, Hydrolysis, Insulin, Kinetics, Mice, Phosphatidylcholines, Platelet-Derived Growth Factor, Tetradecanoylphorbol Acetate, Thymidine, Type C Phospholipases
Abstract

Recent evidence suggests the involvement of phosphatidylcholine (PC) hydrolysis both in the control of normal cell growth and in transformation. We show here that the simple exogenous addition of Bacillus cereus PC-hydrolyzing phospholipase C (PC-PLC) is sufficient to elicit a potent mitogenic response in Swiss 3T3 fibroblasts by a mechanism that is independent of protein kinase C. Our results on the additivity and synergism between B. cereus PC-PLC, PDGF, and insulin in the mitogenic response indicate that this novel phospholipid degradative pathway may be important in the mitogenic signaling cascade activated by PDGF.

DOI10.1016/0092-8674(90)90074-o
Alternate JournalCell
PubMed ID2112426
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