recent experimental data suggest strong cellular cooperation of these cells with activated liver macrophages or kupffer cells , platelets , and regenerating hepatocytes , which leads via a paracrine mechanism involving tgf beta , tgf alpha/egf , pdgf , and probably other cytokines to stimulated proteoglycan synthesis , proliferation , and transformation into myofibroblast-like cells .
C0040690
tgf beta
C0079189
stimulated