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Published on: January 31, 2018
The role of platelet microvesicles in intercellular communication
1a Cardeza Foundation for Hematologic Research, Department of Medicine , Thomas Jefferson University , Philadelphia , PA , USA.
Abstract:
In recent years, there has been exponential growth in the interest in microvesicles, which is reflected by the number of publications. Initially referred to as "platelet dust" by Peter Wolf in 1967, platelet microvesicles (PMV) are now recognized as important mediators of intercellular communication. There are examples of PMV exerting physiological effects on almost all hematological and vascular cell types, including monocytes, macrophages, neutrophils, T-cells, endothelium cells, and smooth muscle cells (SMCs). PMV can exert these effects by multiple methods: extracellular signaling through receptors, transfer of surface molecules, and delivery of intracellular contents including miRNA. Recent work suggests a complex environment in which cellular contents are being shared multi-directionally between multiple cell types. This review will focus on the communicative properties of PMV.
Insights
Platelet microvesicles (PMVs) are key intercellular communicators, influencing various blood and vessel cells. This review explores their diverse signaling mechanisms and roles in cellular communication.
Area of Science:
- Cellular Biology
- Hematology
- Vascular Biology
Background:
- Microvesicles, initially termed 'platelet dust,' have gained significant research interest.
- Platelet microvesicles (PMVs) are recognized as crucial mediators of intercellular communication.
Purpose of the Study:
- To review the communicative properties of platelet microvesicles (PMVs).
- To highlight the expanding role of PMVs in cell-to-cell signaling.
Main Methods:
- Literature review focusing on recent publications regarding PMVs.
- Analysis of studies detailing PMV interactions with various cell types.
Main Results:
- PMVs exert physiological effects on hematological and vascular cells, including monocytes, macrophages, neutrophils, T-cells, endothelial cells, and smooth muscle cells.
- PMVs mediate communication through receptor signaling, surface molecule transfer, and intracellular content delivery (e.g., miRNA).
- Evidence suggests multi-directional sharing of cellular contents between cell types via PMVs.
Conclusions:
- Platelet microvesicles are versatile signaling agents with broad physiological impact.
- Understanding PMV communication is vital for comprehending complex cellular interactions in hematological and vascular systems.
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