Horm Metab Res 1984; 16(10): 532-534
DOI: 10.1055/s-2007-1014842
Basic

© Georg Thieme Verlag, Stuttgart · New York

Prolactin-like Actions of Phospholipase C on RNA and Casein Synthesis in Mouse Mammary Gland Explants

J. A. Rillema
  • Department of Physiology, Wayne State University, School of Medicine, Detroit, Michigan, U.S.A.
Further Information

Publication History

1983

1983

Publication Date:
14 March 2008 (online)

Summary

Phospholipase C stimulated the rate of [3H]-uridine incorporation into RNA in cultured mouse mammary gland explants. This effect was similar to that elicited by prolactin in that the time-course and magnitude of response were the same. In addition, the effects of prolactin and phospholipase C were non-additive when these agents were tested together. Although phospholipase C, by itself, had no effect on the rate of [3H]-leucine incorporation into casein, it was found to stimulate casein synthesis when the explants were simultaneously exposed to 0.5 mM spermidine. These observations are compatible with the idea that at least certain of the actions of prolactin in the mammary gland may be carried out via phospholipase C.