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Review
. 2021 Dec;37(12):1133-1138.
doi: 10.1051/medsci/2021205. Epub 2021 Dec 20.

[Extracellular vesicles in the central nervous system]

[Article in French]
Élodie Leroux  1 , Romain Perbet  1 , Luc Buée  1 , Morvane Colin  1
Affiliations
Free article
Review

[Extracellular vesicles in the central nervous system]

[Article in French]
Élodie Leroux et al. Med Sci (Paris). 2021 Dec.
Free article

Abstract
in English, French

Extracellular Vesicles (EVs) are released by a wide diversity of cells. They contain proteins, RNAs and lipids that will be exchanged between these cells. They represent therefore a major form of intercellular communication in both physiological and pathological conditions. This is particularly relevant in the nervous system where neurons and glial cells form a very dense network where billions of connections are made. In this review, the different roles played by the EVs in a healthy brain to maintain cerebral homeostasis during development, synaptic transmission or axonal myelination will be discussed. In addition, the pathological aspects of EVs presence will also be addressed. In recent years, the EVs have emerged as major players in the spread of neurodegenerative diseases, in neuroinflammation and in tumor development, although they may also be beneficial in some conditions.

Title: Les vésicules extracellulaires - Actrices de la communication entre les cellules du système nerveux.

Abstract: Les vésicules extracellulaires (VE) sont libérées par une grande variété de cellules et contiennent des protéines, des ARN et des lipides, qui sont ainsi échangés entre ces cellules. Elles représentent donc un mode de communication intercellulaire majeur aussi bien en conditions physiologiques que pathologiques. C’est notamment le cas dans le système nerveux (SN) où les neurones et les cellules gliales forment un réseau très dense et où des milliards de connexions s’établissent. Cette revue fournit un aperçu des différents rôles joués par les VE dans un cerveau sain lors du renforcement des réseaux par exemple, mais également dans un cerveau malade où les VE participent, entre autres, à la progression des maladies neurodégénératives et tumorales.

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