ON THE VERSATILITY OF VON WILLEBRAND FACTOR

Antoine Rauch, Peter Lenting
  • Antoine Rauch
    Affiliation not present
  • Peter Lenting
    Peter J. Lenting INSERM U770, 80 rue du General Leclerc, 94276 Le Kremlin-Bicêtre, France Tel: +33149595651 Fax: +33146719472 Email: peter.lenting@inserm.fr, France | peter.lenting@inserm.fr

Abstract

Von Willebrand factor (VWF) is a large multimeric protein, the function of which has been demonstrated to be pivotal to the haemostatic system. Indeed, quantitative and/or qualitative abnormalities of VWF are associated with the bleeding disorder Von Willebrand disease (VWD). Moreover, increased plasma concentrations of VWF have been linked to an increased risk for thrombotic complications. In the previous decades, many studies have contributed to our understanding of how VWF is connected to the haemostatic system, particularly with regard to structure-function relationships. Interactive sites for important ligands of VWF (such as factor VIII, collagen, glycoprotein Iba, integrin aIIbb3 and protease ADAMTS13) have been identified, and mutagenesis studies have confirmed the physiological relevance of the interactions between VWF and these ligands.  However, we have also become aware that VWF has a more versatile character than previously thought, given its potential role in various non-hemostatic processes, like intimal thickening, tumor cell apoptosis and inflammatory processes. In the presence review, a summary of our knowledge on VWF structure-function relationships is provided in the context of the "classical" haemostatic task of VWF and in perspective of pathological processes beyond haemostasis.

Keywords

von Willebrand Factor; Hemorrhage; Thrombosis, ADAMTS 13

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Submitted: 2014-06-13 09:54:55
Published: 2013-07-10 00:00:00
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