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  • Title: The role of vitronectin as multifunctional regulator in the hemostatic and immune systems.
    Author: Preissner KT.
    Journal: Blut; 1989 Nov; 59(5):419-31. PubMed ID: 2479432.
    Abstract:
    Vitronectin (= complement S-protein) belongs to the group of structurally and functionally homologous adhesive proteins (fibrinogen, fibronectin, von Willebrand factor) which are essential in the procoagulant phase of the hemostatic system, interacting with platelets and the vessel wall. In addition to a structural motif in vitronectin responsible for this interaction (cell attachment domain) other functional domains in the protein molecule exist that contribute to its multifunctional role as regulator in the immune system (complement) as well as in fibrinolysis. These various activities and the ubiquitous distribution of vitronectin in the organism are discussed with regard to structure-function relationships of the protein molecule. Vitronectin may thus provide a conceptual molecular link between cell adhesion, humoral immune response and the hemostatic system, particularly at the blood-vessel wall interphase.
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