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Platelet-Released Factors: Their Role in Viral Disease and Applications for Extracellular Vesicle (EV) Therapy

Journal

Publisher

MDPI
DOI: 10.3390/ijms23042321

Keywords

platelets; microparticles; virus; vesicles; therapy; microvesicle

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Platelets play important roles in thrombosis, hemostasis, and viral infections by releasing factors with pro-inflammatory or anti-inflammatory effects. Platelet microvesicles have potential use in therapy for viral infections, but more research is needed to understand their properties and efficacy.
Platelets, which are small anuclear cell fragments, play important roles in thrombosis and hemostasis, but also actively release factors that can both suppress and induce viral infections. Platelet-released factors include sCD40L, microvesicles (MVs), and alpha granules that have the capacity to exert either pro-inflammatory or anti-inflammatory effects depending on the virus. These factors are prime targets for use in extracellular vesicle (EV)-based therapy due to their ability to reduce viral infections and exert anti-inflammatory effects. While there are some studies regarding platelet microvesicle-based (PMV-based) therapy, there is still much to learn about PMVs before such therapy can be used. This review provides the background necessary to understand the roles of platelet-released factors, how these factors might be useful in PMV-based therapy, and a critical discussion of current knowledge of platelets and their role in viral diseases.

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