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See detailFacilitating roles of murine platelet glycoprotein Ib and alphaIIbbeta3 in phosphatidylserine exposure during vWF-collagen-induced thrombus formation.
Kuijpers, Marijke; Schulte, V.; Oury, Cécile ULg et al

in Journal of Physiology (2004)

This work indicates that, under physiological conditions of flow, both adhesive receptors GPIb and alphaIIbbeta3 facilitate GPVI-mediated PS exposure by stabilizing platelet binding to collagen. Hence ... [more ▼]

This work indicates that, under physiological conditions of flow, both adhesive receptors GPIb and alphaIIbbeta3 facilitate GPVI-mediated PS exposure by stabilizing platelet binding to collagen. Hence, these glycoproteins have an assistant procoagulant role in collagen-dependent thrombus formation, which is most prominent at reduced GPVI activity and is independent of the presence of thrombin. [less ▲]

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See detailOverexpression of the platelet P2X1 ion channel in transgenic mice generates a novel prothrombotic phenotype.
Oury, Cécile ULg; Kuijpers, Marijke; Toth-Zsamboki, Emese et al

in Journal of Thrombosis and Haemostasis (2003)

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See detailGlycoprotein Ib and integrin alphaIIbbeta3 contribute to GPVI-dependent vWF-collagen induced thrombus formation under flow
Kuijpers, Marijke; Oury, Cécile ULg; Schulte, V. et al

in Journal of Thrombosis and Haemostasis [=JTH] (2003)

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See detailOverexpression of the platelet P2X1 ion channel in transgenic mice generates a novel prothrombotic phenotype.
Oury, Cécile ULg; Kuijpers, Marijke; Toth-Zsamboki, Emese et al

in Blood (2003)

This study describes transgenic mice overexpressing the human P2X(1) ion channel in the megakaryocytic cell lineage. Platelets from these mice display increased secretion and aggregation evoked by low ... [more ▼]

This study describes transgenic mice overexpressing the human P2X(1) ion channel in the megakaryocytic cell lineage. Platelets from these mice display increased secretion and aggregation evoked by low doses of collagen, convulxin, or the thromboxane A(2) mimetic U46619. Perfusing whole blood from transgenic mice over collagen fibers at a shear rate of 1000 seconds(-1) resulted in increased P2X(1)-dependent aggregate formation and phosphatidylserine exposure. Platelet hyperreactivity to collagen was correlated with up-regulated extracellular signal-regulated kinase 2 (ERK2) phosphorylation. In a viscometer, shear stress caused potent aggregation of transgenic platelets under conditions in which wild-type platelets did not aggregate. In an in vivo model of thromboembolism consisting of intravenous injection of a low dose of collagen plus epinephrine, transgenic mice died more readily than wild-type mice. Preinjection of U0126 not only fully protected transgenic mice against thrombosis, it also enhanced the survival of wild-type mice injected with a higher collagen dose. Hence, the platelet P2X(1) ion channel plays a role in hemostasis and thrombosis through its participation in collagen-, thromboxane A(2)-, and shear stress-triggered platelet responses. Activation of the ERK2 pathway is instrumental in these processes. [less ▲]

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See detailIncreased platelet reactivity to collagen in transgenic mice overexpressing the P2X1 ion channel.
Oury, Cécile ULg; Kuijpers, marijke; Toth-Zsamboki, Emese et al

in Haematologica (2002), 87

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See detailEnhanced Platelet Reactivity to Collagen and Shear Stress in Transgenic Mice Overexpressing the Platelet P2X1 Ion Channel
Oury, Cécile ULg; Kuijpers, Marijke; Toth-Zsamboki, Emese et al

in Blood (2002), 100

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