Journal
BLOOD REVIEWS
Volume 21, Issue 2, Pages 99-111Publisher
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.blre.2006.06.001
Keywords
platelet-neutrophil-interactions; hemostasis; inflammation
Categories
Funding
- NATIONAL HEART, LUNG, AND BLOOD INSTITUTE [R01HL058108, P01HL073361, P01HL055798] Funding Source: NIH RePORTER
- NHLBI NIH HHS [HL73361, HL58108, HL55798] Funding Source: Medline
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Platelets are essential for primary hemostasis, but they also play an important pro-inflammatory rote. Platelets normally circulate in a quiescent state. Upon activation, platelets can secrete and present various molecules, change their shape as well as the expression pattern of adhesion molecules. These changes are associated with the adhesion of platelets to leukocytes and the vessel wall. The interaction of platelets with neutrophils promotes the recruitment of neutrophils into inflammatory tissue and thus participates in host defense. This interaction of neutrophils with platelets is mainly mediated through P-selectin and beta(2) and beta(3) integrins (CD11b/CD18, CD41/CD61). Platelets can also interact with endothelial cells and monocytes. Adherent platelets promote the 'secondary capture' of neutrophils and other leukocytes. In addition, platelets secrete neutrophil and endotheliat activators inducing production of inflammatory cytokines. Thus, platelets are important amplifiers of acute inflammation. (c) 2006 Elsevier Ltd. All rights reserved.
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