PDGF is a dimeric molecule consisting of A chains and B chains. All three dimeric combinations have been found in platelets, or produced by certain normal or transformed cell types; whether functional differences occur between different dimers is currently under investigation. Production of PDGF-like factors by cells carrying PDGF receptors may establish an autocrine loop, driving cell multiplication.
PDGF-like growth factors in autocrine stimulation of growth. Publishing Authors By Initials