Key result
Initial platelet adhesion drives GPIb-dependent Syk phosphorylation prior to cortactin, FAK, and GPIIb-IIIa activation.
Population
Platelets/blood samples under flow conditions, including blood from two patients with Glanzmann's…
Design
Preclinical
Authors
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Clarifies early platelet signaling under flow; leaves open whether Syk or FAK inhibition alters thrombosis in vivo.
The initial arrest of platelets on subendothelial components involves GPIb-dependent Syk phosphorylation, followed by activation of cortactin and FAK prior to GPIIb-IIIa activation.
Arderiu et al. (2002) studied this question. Acetylsalicylic acid and GPIIb-IIIa monoclonal antibody was evaluated on Tyrosine-phosphorylation patterns during platelet adhesion. Initial arrest of platelets on subendothelial components involves GPIb-dependent Syk phosphorylation, followed by activation of cortactin and focal adhesion kinase before GPIIb-IIIa activation.
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