von Willebrand factor–Glycoprotein Ib Interaction (VWF-GPIb Interaction)

The interaction between von Willebrand factor (VWF) and platelet glycoprotein Ib (GPIb), specifically the GPIbα subunit, is a critical molecular event in primary hemostasis. This binding mediates the initial adhesion of circulating platelets to sites of vascular injury, particularly under conditions of high shear stress. VWF acts as a bridge between exposed subendothelial collagen at injury sites and the GPIb-IX-V complex on platelets, facilitating platelet tethering and subsequent activation. Disruption or abnormal regulation of this interaction leads to several bleeding or thrombotic disorders. Several therapeutic agents have been developed targeting this axis, including monoclonal antibodies and aptamers, for the prevention/treatment of thrombotic events.

Other names

VWF-GPIbα InteractionVWF-GPIb-IX-V Interactionvon Willebrand factor-platelet receptor GPIb interaction

Inhibition of VWF-GPIb binding, thereby reducing platelet adhesion and aggregation.