| Literature DB >> 6313447 |
Abstract
PDGF is a potent mitogen that initiates the proliferation of quiescent fibroblastic cells. EGF and somatomedin C (or insulin) can replace the requirement for plasma to function synergistically with PDGF to stimulate DNA synthesis. PDGF, EGF and somatomedin C control discrete cellular events in the cell cycle. Cyclic AMP can potentiate the effects of polypeptide mitogens. The down-regulation of EGF receptors by PDGF and cyclic AMP brings about a loss of the requirement for exogenous EGF. The transient treatment of density-arrested fibroblasts with PDGF allows better study of synergistic actions of PDGF and plasma-derived factors. These synergistic interactions are important to understand in determining how multiple growth factors regulate cellular proliferation.Entities:
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Year: 1983 PMID: 6313447 DOI: 10.1016/0303-7207(83)90147-8
Source DB: PubMed Journal: Mol Cell Endocrinol ISSN: 0303-7207 Impact factor: 4.102