Growth factor release from platelets

Platelet activation during injury or inflammation triggers the release of numerous growth factors from storage granules within platelets—including platelet-derived growth factor (PDGF), transforming growth factor beta (TGF-β), vascular endothelial growth factor (VEGF), insulin-like growth factor 1 (IGF-1), and interleukin-1β (IL-1β)[1]. These factors orchestrate tissue repair by stimulating cell proliferation, migration, angiogenesis, and extracellular matrix remodeling. The precise kinetics and composition of released factors depend on the method of platelet activation and the type of platelet preparation (e.g., platelet-rich plasma, platelet-rich fibrin)[1][9]. Aberrant or dysregulated release of these factors can influence disease pathology such as fibrosis, atherosclerosis, and cancer progression[2][9]. This is not an individual molecular target but instead a multifactorial biological process. For structured molecular targeting, refer to specific molecules such as platelet-derived growth factor (PDGF) or its receptors (e.g., PDGF receptor alpha or beta)[6][7].

Other names

Platelet growth factor releasePlatelet secretomePlatelet degranulationPlatelet-derived factor release