Title : Free thiol groups in von Willebrand factor (VWF) are required for its full function under physiological flow conditions.

Pub. Date : 2016 Jan

PMID : 26581637






8 Functional Relationships(s)
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1 Free thiol groups in von Willebrand factor (VWF) are required for its full function under physiological flow conditions. Sulfhydryl Compounds von Willebrand factor Homo sapiens
2 INTRODUCTION: von Willebrand factor (VWF) is rich in cysteine; next to important structural disulfide bonds, free thiol groups are present. Sulfhydryl Compounds von Willebrand factor Homo sapiens
3 Free thiols on the surface of plasmatic VWF have been shown to play a role in VWF self-association and in platelet binding under pathologically high levels of shear stress. Sulfhydryl Compounds von Willebrand factor Homo sapiens
4 Free thiols on the surface of plasmatic VWF have been shown to play a role in VWF self-association and in platelet binding under pathologically high levels of shear stress. Sulfhydryl Compounds von Willebrand factor Homo sapiens
5 The present study explores the role of VWF free thiol groups under physiological levels of shear stress and in interactions with collagen and platelet-GPIbalpha receptor. Sulfhydryl Compounds von Willebrand factor Homo sapiens
6 RESULTS: Blockade of free thiol groups significantly reduced VWF-mediated platelet recruitment to collagen under physiological flow conditions. Sulfhydryl Compounds von Willebrand factor Homo sapiens
7 CONCLUSIONS: This study shows a significant contribution of free thiol groups in VWF to the mediation of platelet adhesion under physiological shear stress conditions. Sulfhydryl Compounds von Willebrand factor Homo sapiens
8 The free thiol groups are shown to be involved in VWF binding to both collagen III and platelet GP1b receptor. Sulfhydryl Compounds von Willebrand factor Homo sapiens