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Circ Res. 2005 Apr 1;96(6):612-6.

Platelets and chemokines in atherosclerosis: partners in crime.

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  • 1Department of Molecular Cardiovascular Research, University Hospital, Rheinisch-Westfälische Technische Hochschule, Aachen, Germany. cweber@ukaachen.de

Abstract

It becomes increasingly evident that blood platelets do not only exert important functions in hemostasis and thrombus formation but are also involved in atherosclerotic vascular disease. A major portion of the underlying mechanisms is related to an intricate functional interaction of platelets with chemokines, which have also been implicated in atherogenesis and neointima formation: (1) Platelets can induce the secretion of chemokines in different cells of the vascular wall; (2) In combination with primary agonists, certain chemokines can potentiate platelet aggregation and adhesion; (3) Activated platelets can release and deposit chemokines and precursors on vascular cell surfaces, which trigger atherogenic recruitment of vascular cells or modulate crucial processes such as angiogenesis and lipoprotein metabolism; (4) Surface-adherent platelets can bind and present vascular cell-derived chemokines to trigger arrest of circulating mononuclear cells. The close linkage between platelets and chemokines as culprits in the pathogenesis of vascular diseases may provide a valuable target for selective interventions.

PMID:
15802619
[PubMed - indexed for MEDLINE]
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