Table 2. Platelet therapy growth factor functions.

Platelet-derived growth factor (PDGFaa, PDGFbb, PDGFab)	Triggers the activities of neutrophils, fibroblasts, and macrophages Chemoattractant/cell proliferator Stimulates mesenchymal cell lineages
Transforming growth factor (TGF-β1, TGF-β2, TGF-β3)	Promotes cellular differentiation and replication Stimulates matrix and collagen synthesis Stimulates fibroblast activity and collagen production
Vascular endothelial growth factor (VEGF)	… Angiogenesis … Stimulates synthesis of basal lamina
Fibroblastic growth factor (FGF)	Angiogenesis Fibroblast production
Epithelial cell growth factor (ECGF)	Stimulates epithelial cell replication
Insulin-like growth factor (IGF-1)	Promotes cellular growth and proliferation