Abstract
Primary cultures of smooth muscle cells were established from the medial layer of guinea pig aorta. Cells were seeded at from 40 to 80 cells per cm2 and cloned for 8 days. Media were analyzed for PGI2 (6-keto-PGF1α) using radioimmunoassay. Prostanoids were synthesized when cells were grown in media alone. Arachidonic acid stimulated prostanoid synthesis and promoted cell proliferation. Indomethacin blocked prostanoid synthesis and abolished the stimulatory effect of arachidonic acid on cell proliferation. Hydralazine stimulated fatty acid release and prostanoid synthesis in confluent cells. Hydralazine also stimulated prostanoid synthesis and promoted proliferation in growing cells. Indomethacin blocked prostanoid synthesis and abolished the stimulatory effect of hydralazine on cell proliferation.
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Morisaki, N., Lindsey, J.A., Milo, G.E. et al. Fatty acid metabolism and cell proliferation. III. Effect of prostaglandin biosynthesis either from exogenous fatty acid or endogenous fatty acid release with hydralazine. Lipids 18, 349–352 (1983). https://doi.org/10.1007/BF02537230
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DOI: https://doi.org/10.1007/BF02537230