Abstract
Employing phosphatidylinositol as the substrate, phospholipase C (PLC) activity was measured in various cellular fractions derived from DMBA-induced rat mammary tumors and mammary tissues from 12-14 day pregnant rats. In the 2,000g pellet, 10,000g pellet, 100,000g pellet and 100,000g supernatant fractions, PLC activity was more than 5 fold higher in the fractions derived from the neoplastic tissues. This was true whether PLC activity was expressed on the basis of protein content or 5' nucleotidase activities.
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More From: Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.)
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