Clot Retraction and Its Correlation with the Function of Platelet Integrin α<sub>IIb</sub>β<sub>3</sub>

Clot retraction results from retractions of platelet filopodia and fibrin fibers and requires the functional platelet α<sub>IIb</sub>β<sub>3</sub> integrin. This assay is widely used to test the functions of platelets and fibrinogen as well as the efficacy of fibrinolysis. Ch...

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Main Authors: Daniel Gao, Caroline W. Sun, Angela B. Woodley, Jing-fei Dong
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/11/9/2345
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author Daniel Gao
Caroline W. Sun
Angela B. Woodley
Jing-fei Dong
author_facet Daniel Gao
Caroline W. Sun
Angela B. Woodley
Jing-fei Dong
author_sort Daniel Gao
collection DOAJ
description Clot retraction results from retractions of platelet filopodia and fibrin fibers and requires the functional platelet α<sub>IIb</sub>β<sub>3</sub> integrin. This assay is widely used to test the functions of platelets and fibrinogen as well as the efficacy of fibrinolysis. Changes in clot retraction have been found in a variety of hemostatic abnormalities and, more recently, in arterial thrombosis. Despite its broad clinical use and low cost, many aspects of clot retraction are poorly understood. In the present study, we performed two clinical standard clot retraction assays using whole-blood and platelet-rich plasma (PRP) samples to determine how clot retraction correlates with platelet counts and mean volume, the density of α<sub>IIb</sub>β<sub>3</sub> integrin and PLA genotypes, and plasma fibrinogen levels. We found that clot retraction was affected by platelet counts, but not mean platelet volume. It correlated with the surface density of the integrin α<sub>Iib</sub>β<sub>3</sub>, but not PLA genotypes. These results indicate that clot retraction measures a unique aspect of platelet function and can serve as an additional means to detect functional changes in platelets.
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spelling doaj.art-be3635023bf64597a3b2fd70f3c6eeb32023-11-19T09:39:59ZengMDPI AGBiomedicines2227-90592023-08-01119234510.3390/biomedicines11092345Clot Retraction and Its Correlation with the Function of Platelet Integrin α<sub>IIb</sub>β<sub>3</sub>Daniel Gao0Caroline W. Sun1Angela B. Woodley2Jing-fei Dong3Bloodworks Research Institute, 1551 Southlake Ave. E., Seattle, WA 98102, USASection of Cardiovascular Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USASection of Cardiovascular Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USABloodworks Research Institute, 1551 Southlake Ave. E., Seattle, WA 98102, USAClot retraction results from retractions of platelet filopodia and fibrin fibers and requires the functional platelet α<sub>IIb</sub>β<sub>3</sub> integrin. This assay is widely used to test the functions of platelets and fibrinogen as well as the efficacy of fibrinolysis. Changes in clot retraction have been found in a variety of hemostatic abnormalities and, more recently, in arterial thrombosis. Despite its broad clinical use and low cost, many aspects of clot retraction are poorly understood. In the present study, we performed two clinical standard clot retraction assays using whole-blood and platelet-rich plasma (PRP) samples to determine how clot retraction correlates with platelet counts and mean volume, the density of α<sub>IIb</sub>β<sub>3</sub> integrin and PLA genotypes, and plasma fibrinogen levels. We found that clot retraction was affected by platelet counts, but not mean platelet volume. It correlated with the surface density of the integrin α<sub>Iib</sub>β<sub>3</sub>, but not PLA genotypes. These results indicate that clot retraction measures a unique aspect of platelet function and can serve as an additional means to detect functional changes in platelets.https://www.mdpi.com/2227-9059/11/9/2345clot retractionintegrin α<sub>Iib</sub>β<sub>3</sub>PLA genotypes
spellingShingle Daniel Gao
Caroline W. Sun
Angela B. Woodley
Jing-fei Dong
Clot Retraction and Its Correlation with the Function of Platelet Integrin α<sub>IIb</sub>β<sub>3</sub>
Biomedicines
clot retraction
integrin α<sub>Iib</sub>β<sub>3</sub>
PLA genotypes
title Clot Retraction and Its Correlation with the Function of Platelet Integrin α<sub>IIb</sub>β<sub>3</sub>
title_full Clot Retraction and Its Correlation with the Function of Platelet Integrin α<sub>IIb</sub>β<sub>3</sub>
title_fullStr Clot Retraction and Its Correlation with the Function of Platelet Integrin α<sub>IIb</sub>β<sub>3</sub>
title_full_unstemmed Clot Retraction and Its Correlation with the Function of Platelet Integrin α<sub>IIb</sub>β<sub>3</sub>
title_short Clot Retraction and Its Correlation with the Function of Platelet Integrin α<sub>IIb</sub>β<sub>3</sub>
title_sort clot retraction and its correlation with the function of platelet integrin α sub iib sub β sub 3 sub
topic clot retraction
integrin α<sub>Iib</sub>β<sub>3</sub>
PLA genotypes
url https://www.mdpi.com/2227-9059/11/9/2345
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