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Published on: February 20, 2015
[Cell-derived microparticules: key players at the crossroad between inflammation and thrombosis]
F Sabatier1, R Lacroix, A-S Leroyer
1Inserm UMR-S 608, UFR de pharmacie, 27, boulevard Jean-Moulin, 13385 Marseille cedex 5, France. florence.sabatier@ap-hm.fr
Abstract:
Cell-derived microparticles are complex vesicular structures that can be shedded by activated or apoptotic endothelial cells. Cell-derived microparticles are composed of a phospholipid bilayer that exposes transmembrane proteins and receptors and encloses cytosolic components such as enzymes, transcription factors and mRNA derived from their parent cells. Thus, they behave as biological conveyors playing a key role in the tuning of vascular homeostasis. This review will address the potential of microparticles as efficient vectors of biological activities in pathologies. Based on the model of endothelial vesiculation, the first part of this review will develop the contribution of endothelial microparticles to coagulation inflammation and angiogenesis and their role in vascular disorders. The second part will be focused on the multifaceted impact of cell-derived microparticles present in blood products and its relevance to transfusion medicine.
Insights
Cell-derived microparticles, shed by endothelial cells, act as biological conveyors influencing vascular homeostasis. This review explores their role in pathologies and transfusion medicine.
Area of Science:
- Biomedical science
- Cell biology
- Vascular biology
Background:
- Cell-derived microparticles are vesicular structures released by activated or apoptotic endothelial cells.
- They contain cytosolic components and transmembrane proteins, acting as biological conveyors.
- These microparticles play a crucial role in regulating vascular homeostasis.
Purpose of the Study:
- To review the potential of microparticles as vectors of biological activities in various pathologies.
- To examine the contribution of endothelial microparticles to coagulation, inflammation, and angiogenesis.
- To discuss the impact of cell-derived microparticles in blood products for transfusion medicine.
Main Methods:
- This review synthesizes existing literature on endothelial vesiculation.
- It analyzes the role of microparticles in vascular disorders based on the endothelial vesiculation model.
- The review also considers the implications of microparticles in transfusion medicine.
Main Results:
- Endothelial microparticles contribute to coagulation, inflammation, and angiogenesis.
- They are implicated in the pathogenesis of various vascular disorders.
- Cell-derived microparticles in blood products have significant relevance to transfusion medicine.
Conclusions:
- Cell-derived microparticles are key players in vascular homeostasis and disease.
- Understanding their role is crucial for developing new therapeutic strategies.
- Their impact on transfusion medicine warrants further investigation.
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