Platelet-derived growth factor stimulates activity of low density lipoprotein receptors.
- 1 July 1980
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 77 (7) , 4084-4088
- https://doi.org/10.1073/pnas.77.7.4084
Abstract
Partially purified platelet-derived growth factor stimulates low density lipoprotein binding and degradation in cultured aortic smooth muscle cells of monkeys by increasing the number of available low density lipoprotein receptors. When platelet-derived growth factor was added to quiescent cells, low density lipoprotein binding increased within 4-8 hr. Stimulation of low density lipoprotein receptor activity preceded stimulation of DNA synthesis by platelet-derived growth factor by 8-12 hr. Enhancement of endogenous cholesterol synthesis by platelet-derived growth factor preceded stimulation of low density lipoprotein receptor activity. These findings suggest that the platelet-derived growth factor can increase both the exogenous and endogenous supplies of cholesterol to the cell for its use during cell proliferation.This publication has 24 references indexed in Scilit:
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