GPVI and integrin αIIbβ3 signaling in platelets
@article{Watson2005GPVIAI, title={GPVI and integrin $\alpha$IIb$\beta$3 signaling in platelets}, author={Steve P. Watson and Jocelyn M. Auger and Owen J T McCarty and Andrew C Pearce}, journal={Journal of Thrombosis and Haemostasis}, year={2005}, volume={3} }
Summary. This review summarizes recent developments in our understanding of the molecular basis of platelet activation by two distinct types of surface receptor, the immunoglobulin GPVI, and the integrin αIIbβ3 (also known as GPIIbIIIa). These two classes of receptor signal through similar yet distinct tyrosine kinase‐based signaling cascades leading to activation of phospholipase C γ2. The significance of these signaling cascades in platelet adhesion and platelet aggregation at arterial rates…
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References
SHOWING 1-10 OF 118 REFERENCES
The role of ITAM- and ITIM-coupled receptors in platelet activation by collagen.
- BiologyThrombosis and haemostasis
- 2001
Despite a pivotal role for GPVI, there are important differences between signalling events to collagen and GPVI-specific ligands, which may reflect a role for co-receptors in the response to collagen.
PECAM-1 negatively regulates GPIb/V/IX signaling in murine platelets.
- BiologyBlood
- 2003
Data support the notion that engagement of the GPIb complex, in addition to sending activation signals, also initiates a negative feedback loop involving PECAM-1 that controls the rate and extent of platelet activation.
Signaling Role for Phospholipase Cγ2 in Platelet Glycoprotein Ibα Calcium Flux and Cytoskeletal Reorganization
- BiologyJournal of Biological Chemistry
- 2003
An important role for PLCγ2 in GPIb signaling linked to platelet shape change is defined and it is demonstrated that G PIb-dependent calcium flux and cytoskeletal reorganization involves a signaling pathway distinct from that utilized by ITAM-containing receptors.
Platelet-collagen interaction: is GPVI the central receptor?
- BiologyBlood
- 2003
Recent developments in understanding platelet-collagen interactions are discussed and possible mechanisms for how GPVI acts in concert with other receptors and signaling pathways to initiate hemostasis and arterial thrombosis are proposed.
Signaling events underlying thrombus formation
- Biology, MedicineJournal of thrombosis and haemostasis : JTH
- 2003
This review will discuss the major platelet adhesive interactions regulating platelet thrombus formation under high shear, with specific focus on the VWF and collagen receptors and the signaling mechanisms utilized by these receptors to induce platelet activation.
Phosphoinositide 3-kinases and the regulation of platelet function.
- BiologyBiochemical Society transactions
- 2004
There is evidence for an important role for PI 3-kinases in regulating a broad range of functional platelet responses, including primary platelet adhesion, cytoskeletal remodelling and platelet aggregation.
Platelet endothelial cell adhesion molecule-1 signaling inhibits the activation of human platelets.
- BiologyBlood
- 2002
It is demonstrated that cross-linking PECAM-1 inhibits the aggregation and secretion of platelets in response to collagen and the GPVI-selective agonist convulxin, suggesting that PECam-1 function may not be restricted to the inhibition of ITAM-containing receptor pathways.
A Critical Role for Phospholipase Cγ2 in αIIbβ3-mediated Platelet Spreading*
- BiologyJournal of Biological Chemistry
- 2003
The interaction of fibrinogen with the integrin αIIbβ3 plays a crucial role in platelet adhesion and platelet activation leading to the generation of intracellular signals that nucleate the…
A critical role for phospholipase Cgamma2 in alphaIIbbeta3-mediated platelet spreading.
- BiologyThe Journal of biological chemistry
- 2003
The interaction of fibrinogen with the integrin alphaIIbbeta3 plays a crucial role in platelet adhesion and platelet activation leading to the generation of intracellular signals that nucleate the…
Signal transduction pathways for mouse platelet membrane adhesion receptors.
- Biology, MedicineThrombosis and haemostasis
- 1999
It is established that signal transduction reactions through aIIbb3 and GP Ib-IX-V are not only involved in platelet aggregation to cause vessel occlusions, but also that glycoprotein signaling affects thrombus growth and stability, as well as the biology and perhaps the pathology of the vessels in which aggregates occur.