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Routine Screening Method for Microparticles in Platelet Transfusions
Published on: January 31, 2018
Platelet microvesicles in health and disease
Imene Melki1, Nicolas Tessandier1, Anne Zufferey1
1a Centre de Recherche du Centre Hospitalier Universitaire de Québec, Faculty of Medicine , Department of Infectious Diseases and Immunity, Université Laval , Quebec City , QC , Canada.
Abstract:
Interest in cell-derived extracellular vesicles and their physiological and pathological implications is constantly growing. Microvesicles, also known as microparticles, are small extracellular vesicles released by cells in response to activation or apoptosis. Among the different microvesicles present in the blood of healthy individuals, platelet-derived microvesicles (PMVs) are the most abundant. Their characterization has revealed a heterogeneous cargo that includes a set of adhesion molecules. Similarly to platelets, PMVs are also involved in thrombosis through support of the coagulation cascade. The levels of circulatory PMVs are altered during several disease manifestations such as coagulation disorders, rheumatoid arthritis, systemic lupus erythematosus, cancers, cardiovascular diseases, and infections, pointing to their potential contribution to disease and their development as a biomarker. This review highlights recent findings in the field of PMV research and addresses their contribution to both healthy and diseased states.
Insights
Platelet-derived microvesicles (PMVs) are abundant in blood and involved in thrombosis. Altered PMV levels indicate various diseases, suggesting their potential as diagnostic biomarkers.
Area of Science:
- Cell biology
- Hematology
- Biochemistry
Background:
- Extracellular vesicles, including microvesicles, are increasingly studied for their roles in health and disease.
- Platelet-derived microvesicles (PMVs) are the most common microvesicles in blood.
- PMVs carry adhesion molecules and influence coagulation.
Purpose of the Study:
- To review recent findings on platelet-derived microvesicles (PMVs).
- To discuss the role of PMVs in physiological and pathological conditions.
- To explore the potential of PMVs as biomarkers.
Main Methods:
- Literature review of recent research on PMVs.
- Analysis of PMV cargo and function.
- Examination of PMV levels in various disease states.
Main Results:
- PMVs are abundant and play a role in thrombosis by supporting the coagulation cascade.
- Circulating PMV levels are altered in conditions like cancer, cardiovascular diseases, and autoimmune disorders.
- PMVs contain a diverse cargo, including adhesion molecules.
Conclusions:
- Platelet-derived microvesicles are significant in both normal physiology and disease pathogenesis.
- Altered levels of PMVs in circulation suggest their utility as potential biomarkers for various diseases.
- Further research into PMVs can elucidate their complex roles and therapeutic potential.
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