C-X-C motif chemokine 4, CXCL4, Iroplact, OncostatinA, PF4, Platelet factor 4, SCYB4, short form, Small inducible cytokine subfamily member 4
Released during platelet aggregation. Neutralizes the anticoagulant effect of heparin because it binds more strongly to heparin than to the chondroitin-4-sulfate chains of the carrier molecule. Chemotactic for neutrophils and monocytes. Inhibits endothelial cell proliferation, the short form is a more potent inhibitor than the longer form.
