Release of α-granule contents during platelet activation

Upon activation, platelets release a plethora of factors which help to mediate their dynamic functions in hemostasis, inflammation, wound healing, tumor metastasis and angiogenesis. The majority of these bioactive molecules are released from α-granules, which are unique to platelets, and contain an...

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Main Author: Christopher W. Smith
Format: Article
Language:English
Published: Taylor & Francis Group 2022-05-01
Series:Platelets
Subjects:
Online Access:http://dx.doi.org/10.1080/09537104.2021.1913576
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author Christopher W. Smith
author_facet Christopher W. Smith
author_sort Christopher W. Smith
collection DOAJ
description Upon activation, platelets release a plethora of factors which help to mediate their dynamic functions in hemostasis, inflammation, wound healing, tumor metastasis and angiogenesis. The majority of these bioactive molecules are released from α-granules, which are unique to platelets, and contain an incredibly diverse repertoire of cargo including; integral membrane proteins, pro-coagulant molecules, chemokines, mitogenic, growth and angiogenic factors, adhesion proteins, and microbicidal proteins. Clinically, activation of circulating platelets has increasingly been associated with various disease states. Biomarkers indicating the level of platelet activation in patients can therefore be useful tools to evaluate risk factors to predict future complications and determine treatment strategies or evaluate antiplatelet therapy. The irreversible nature of α-granule secretion makes it ideally suited as a marker of platelet activation. This review outlines the release and contents of platelet α-granules, as well as the membrane bound, and soluble α–granule cargo proteins that can be used as biomarkers of platelet activation.
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spelling doaj.art-46d6fbcec00945c3ba133f9da011f5ab2023-09-15T10:38:09ZengTaylor & Francis GroupPlatelets0953-71041369-16352022-05-0133449150210.1080/09537104.2021.19135761913576Release of α-granule contents during platelet activationChristopher W. Smith0Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of BirminghamUpon activation, platelets release a plethora of factors which help to mediate their dynamic functions in hemostasis, inflammation, wound healing, tumor metastasis and angiogenesis. The majority of these bioactive molecules are released from α-granules, which are unique to platelets, and contain an incredibly diverse repertoire of cargo including; integral membrane proteins, pro-coagulant molecules, chemokines, mitogenic, growth and angiogenic factors, adhesion proteins, and microbicidal proteins. Clinically, activation of circulating platelets has increasingly been associated with various disease states. Biomarkers indicating the level of platelet activation in patients can therefore be useful tools to evaluate risk factors to predict future complications and determine treatment strategies or evaluate antiplatelet therapy. The irreversible nature of α-granule secretion makes it ideally suited as a marker of platelet activation. This review outlines the release and contents of platelet α-granules, as well as the membrane bound, and soluble α–granule cargo proteins that can be used as biomarkers of platelet activation.http://dx.doi.org/10.1080/09537104.2021.1913576alpha granulesbiomarkerplateletsecretion
spellingShingle Christopher W. Smith
Release of α-granule contents during platelet activation
Platelets
alpha granules
biomarker
platelet
secretion
title Release of α-granule contents during platelet activation
title_full Release of α-granule contents during platelet activation
title_fullStr Release of α-granule contents during platelet activation
title_full_unstemmed Release of α-granule contents during platelet activation
title_short Release of α-granule contents during platelet activation
title_sort release of α granule contents during platelet activation
topic alpha granules
biomarker
platelet
secretion
url http://dx.doi.org/10.1080/09537104.2021.1913576
work_keys_str_mv AT christopherwsmith releaseofagranulecontentsduringplateletactivation