PDGF is a highly hydrophilic cationic glycoprotein (Mr 28-35 kDa) produced by platelets, monocyte/macrophages, endothelial cells and vascular smooth muscle cells under some conditions. Since its original description, PDGF has attracted much attention and it is currently believed to play a role in atherosclerosis and other vascular pathologies. This review describes the vascular biology of PDGF. It particularly focuses on recent findings regarding the intracellular signals activated by PDGF in the context of vascular smooth muscle cell proliferation, migration and contraction.
- excitation-contraction coupling
- platelet-derived growth factor
- signal transduction
- vascular smooth muscle cell