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Rôle des vésicules extracellulaires dans la croissance

29/06/2019 | Etudes sur les hormones et Etudes Musculation


Emerging role of extracellular vesicles in the regulation of skeletal muscle adaptation
Ivan J. Jr Vechetti           j appl physiol 13 juin 2019

Extracellular vesicles (EVs) were initially characterized as “garbage” bags with the finality to remove unwanted material from the cells. It is now becoming clear that EVs mediate intercellular communication between distant cells through a transfer of genetic material, a process important to the systemic adaptation in physiological and pathological conditions.

Although speculative, it has been suggested that the majority of EVs that make it into the bloodstream would be coming from skeletal muscle, since it is one of the largest organs in the human body. While it is well established that skeletal muscle secretes peptides (currently known as myokines) into the bloodstream, the notion that skeletal muscle releases EVs is in its infancy. Besides intercellular communication and systemic adaptation, EV release could represent the mechanism by which muscle adapts to certain stimuli. This review will summarize the current understanding of EV biology and biogenesis, current isolation methods, and briefly discuss the possible role EVs have in regulating skeletal muscle mass.

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