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Platelet-based coagulation: different populations, different functions
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DOI：10.1111/jth.12045.png)
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En 中文
. Platelets in a thrombus interact with (anti)coagulation factors and support blood coagulation. In the concept of cell-based control of coagulation, three different roles of platelets can be distinguished: control of thrombin generation, support of fibrin formation, and regulation of fibrin clot retraction. Here, we postulate that different populations of platelets with distinct surface properties are involved in these coagulant functions. Platelets with elevated Ca2+ and exposed phosphatidylserine control thrombin and fibrin generation, while platelets with activated aIIb beta 3 regulate clot retraction. We review how coagulation factor binding depends on the platelet activation state. Furthermore, we discuss the ligands, platelet receptors and downstream intracellular signaling pathways implicated in these coagulant functions. These insights lead to an adapted model of platelet-based coagulation.
Keyword:
coagulation factors
clot retraction
fibrin formation
platelet receptors
procoagulant activity
thrombin generation
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5
论文数:
9.9K
被引数:
2.3W
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