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Updated: Jun 5, 2026
Routine Screening Method for Microparticles in Platelet Transfusions
Published on: January 31, 2018
Platelet-derived microparticles - an updated perspective
1Department of Biosciences, Division of Biochemistry, University of Helsinki, Finland. Pia.Siljander@helsinki.fi
Abstract:
Platelet-derived microparticles (PMP) are a heterogeneous population of vesicles (< 1 mm) generated from the plasma membrane upon platelet activation by various stimuli. They are a discrete population differing from the exosomes which originate from the intracellular multivesicular bodies. PMP also differ from the microparticles derived from megakaryocytes despite the presence of several identical surface markers on the latter. The molecular properties and the functional roles of the PMP are beginning to be elucidated by the rapidly evolving research interest, but novel questions are simultaneously raised. This updated perspective discusses the most recent highlights in the PMP research in context with the methodological problems and the paradoxical role of the PMP in health and disease.
Insights
Platelet-derived microparticles (PMP) are small vesicles released from activated platelets. Research is clarifying their roles in health and disease, despite ongoing methodological challenges.
Area of Science:
- Biochemistry
- Cell Biology
- Hematology
Background:
- Platelet-derived microparticles (PMP) are vesicles released from activated platelets.
- PMP are distinct from exosomes and megakaryocyte-derived microparticles.
- Research on PMP molecular properties and functions is rapidly advancing.
Purpose of the Study:
- To discuss recent PMP research highlights.
- To address methodological challenges in PMP studies.
- To explore the paradoxical roles of PMP in health and disease.
Main Methods:
- Literature review of recent PMP research.
- Analysis of PMP generation and characterization.
- Discussion of PMP functional roles and clinical relevance.
Main Results:
- PMP are heterogeneous vesicles originating from the platelet plasma membrane.
- Distinctions between PMP, exosomes, and megakaryocyte-derived microparticles are clarified.
- PMP exhibit complex roles in both physiological and pathological conditions.
Conclusions:
- Ongoing research continues to reveal the multifaceted nature of PMP.
- Methodological standardization is crucial for advancing PMP research.
- Understanding PMP is vital for comprehending their impact on health and disease.
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