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Front Physiol. 2017 May 5;8:275. doi: 10.3389/fphys.2017.00275. eCollection 2017.

Endothelial Extracellular Vesicles-Promises and Challenges.

Author information

1
AUVA Research Centre, Ludwig Boltzmann Institute for Experimental and Clinical TraumatologyVienna, Austria.
2
Austrian Cluster for Tissue RegenerationVienna, Austria.
3
Christian Doppler Laboratory on Biotechnology of Skin Aging, Department of Biotechnology, University of Natural Resources and Life SciencesVienna, Austria.
4
Evercyte GmbHVienna, Austria.

Abstract

Extracellular vesicles, including exosomes, microparticles, and apoptotic bodies, are phospholipid bilayer-enclosed vesicles that have once been considered as cell debris lacking biological functions. However, they have recently gained immense interest in the scientific community due to their role in intercellular communication, immunity, tissue regeneration as well as in the onset, and progression of various pathologic conditions. Extracellular vesicles of endothelial origin have been found to play a versatile role in the human body, since they are on the one hand known to contribute to cardiovascular diseases, but on the other hand have also been reported to promote endothelial cell survival. Hence, endothelial extracellular vesicles hold promising therapeutic potential to be used as a new tool to detect as well as treat a great number of diseases. This calls for clinically approved, standardized, and efficient isolation and characterization protocols to harvest and purify endothelial extracellular vesicles. However, such methods and techniques to fulfill stringent requirements for clinical trials have yet to be developed or are not harmonized internationally. In this review, recent advances and challenges in the field of endothelial extracellular vesicle research are discussed and current problems and limitations regarding isolation and characterization are pointed out.

KEYWORDS:

endothelial cells; exosomes; extracellular vesicles; microparticles; pathology

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