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Generation of Lymphocytic Microparticles and Detection of their Proapoptotic Effect on Airway Epithelial Cells
Published on: February 20, 2015
Plasma membrane microparticles in angiogenesis: role in ischemic diseases and in cancer
H A Mostefai1, R Andriantsitohaina, M C Martínez
1Centre National de la Recherche Scientifique-UMR 6214, INSERM 771, Faculté de Médecine, Angers, France.
Abstract:
Microparticles are small fragments of the plasma membrane released by activated and/or apoptotic cells. In theory, all type of cells can shed microparticles representing a physiological process in the cell life. Mainly, microparticles generation has been studied in different cardiovascular pathologies due to the facility to obtain blood samples from individuals. Although microparticles have been considered as simply markers of several diseases, in the last decade, several studies support the hypothesis that they participate in the regulation of the cardiovascular system function by carrying biological messages between cells. Among the effects of microparticles, recent data show that they can be implicated in the modulation of neovascularization, an essential function of cells from cardiovascular system during either ischemic diseases or cancer development. Whereas during pathologies associated with ischemia an increase of neovascularization may have beneficial effects, anti-angiogenic strategies represent new approaches for manipulation of tumor development. Here, we give an overview of the mechanisms and factors involved in neovascularization, and finally, we look at the role and the consequences of the modulation of this process by microparticles in pathological situations.
Insights
Microparticles, cell membrane fragments, regulate cardiovascular function by carrying messages. They modulate neovascularization, impacting both ischemic diseases and cancer development.
Area of Science:
- Cardiovascular Biology
- Cellular Biology
- Oncology
Background:
- Microparticles are plasma membrane fragments from activated or apoptotic cells.
- Their generation is studied in cardiovascular pathologies due to ease of blood sampling.
- Emerging evidence suggests microparticles actively regulate cardiovascular function by intercellular communication.
Purpose of the Study:
- To provide an overview of microparticle-mediated neovascularization.
- To examine the role of microparticles in pathological neovascularization.
- To discuss the consequences of microparticle modulation in disease.
Main Methods:
- Literature review of microparticle generation and function.
- Analysis of studies on microparticles in cardiovascular diseases.
- Examination of research on microparticles and neovascularization in ischemia and cancer.
Main Results:
- Microparticles are implicated in modulating neovascularization.
- Increased neovascularization can be beneficial in ischemic conditions.
- Anti-angiogenic strategies involving microparticles are explored for cancer therapy.
Conclusions:
- Microparticles play a significant role in regulating neovascularization.
- Their modulation by microparticles has critical implications for ischemic diseases and cancer.
- Understanding these roles is key for therapeutic interventions.
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