Fibrinolysis in Platelet Thrombi

Kanji, Rahim, Gue, Ying X ORCID: 0000-0001-9994-8915, Memtsas, Vassilios and Gorog, Diana A (2021) Fibrinolysis in Platelet Thrombi. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 22 (10). 5135-.

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Abstract

The extent and duration of occlusive thrombus formation following an arterial atherothrombotic plaque disruption may be determined by the effectiveness of endogenous fibrinolysis. The determinants of endogenous fibrinolysis are the subject of much research, and it is now broadly accepted that clot composition as well as the environment in which the thrombus was formed play a significant role. Thrombi with a high platelet content demonstrate significant resistance to fibrinolysis, and this may be attributable to an augmented ability for thrombin generation and the release of fibrinolysis inhibitors, resulting in a fibrin-dense, stable thrombus. Additional platelet activators may augment thrombin generation further, and in the case of coronary stenosis, high shear has been shown to strengthen the attachment of the thrombus to the vessel wall. Neutrophil extracellular traps contribute to fibrinolysis resistance. Additionally, platelet-mediated clot retraction, release of Factor XIII and resultant crosslinking with fibrinolysis inhibitors impart structural stability to the thrombus against dislodgment by flow. Further work is needed in this rapidly evolving field, and efforts to mimic the pathophysiological environment in vitro are essential to further elucidate the mechanism of fibrinolysis resistance and in providing models to assess the effects of pharmacotherapy.

Item Type:	Article
Uncontrolled Keywords:	fibrinolysis, thrombin, shear, clot retraction, Factor XIII, clot stability, NETs, platelets
Divisions:	Faculty of Health and Life Sciences Faculty of Health and Life Sciences > Institute of Life Courses and Medical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	16 Dec 2021 14:29
Last Modified:	18 Jan 2023 21:19
DOI:	10.3390/ijms22105135
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3145505