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Updated: May 25, 2026
09:49
Routine Screening Method for Microparticles in Platelet Transfusions
Published on: January 31, 2018
Platelet-derived microvesicles: multitalented participants in intercellular communication.
Maria Aatonen1, Mikaela Grönholm, Pia R-M Siljander
1Division of Biochemistry and Biotechnology, Department of Biosciences, University of Helsinki, Finland.
Seminars in Thrombosis and Hemostasis
|February 9, 2012
Summary
Platelet-derived microvesicles (PMVs), encompassing microparticles and exosomes, are crucial in cell communication, hemostasis, immunity, and disease. Their diverse origins and functions necessitate further research into their paradoxical roles.
Area of Science:
- Cell Biology
- Biochemistry
- Immunology
Background:
- Platelets release diverse vesicles, including plasma membrane-derived microparticles (PMPs) and multivesicular body-derived exosomes.
- Due to overlapping properties, these are best discussed collectively as platelet-derived microvesicles (PMVs).
- PMPs exhibit varied molecular profiles based on distinct activation pathways, influencing intercellular communication.
Purpose of the Study:
- To review the differential activation pathways of PMVs.
- To discuss the molecular and functional properties of PMVs.
- To contextualize the paradoxical roles of PMVs in health and disease.
Main Methods:
- Review of existing literature on platelet-derived microvesicles.
- Analysis of differential activation pathways and molecular profiles.
- Discussion of methodological challenges in PMV detection and analysis.
Main Results:
- PMVs are implicated in homeostasis (hemostasis, vascular health, immunity) and pathology (thrombosis, inflammation, cancer).
- The heterogeneity of PMVs contributes to their multifaceted roles and varied observations in different settings.
- Limited knowledge exists regarding platelet-derived exosomes specifically.
Conclusions:
- PMVs are key players in both physiological and pathological processes.
- Further analytical advancements are required to fully understand PMV heterogeneity and function.
- Methodological improvements are crucial for accurate PMV detection and analysis.
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