Journal
JOURNAL OF CELLULAR PHYSIOLOGY
Volume 236, Issue 5, Pages 3336-3353Publisher
WILEY
DOI: 10.1002/jcp.30094
Keywords
aerobic training; cfDNA; exercise-released exosomes; extracellular vesicles; microRNAs; physical activity
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Funding
- Ministry of Education of Spain [FPU15/05051]
- Spanish Ministry of Science and Innovation - MINECO [RYC-2014-16938]
- EXERNET Research Network on Physical Exercise and Health [09/UPB/20]
- IN MOTU SALUS Research Network on Molecular and Cellular Basis of Physical Exercise for Health and Performance [14/UPB/20]
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This review systematically investigates the effects of exercise on the release and cargo of exosomes, showing that exercise promotes exosome release without modifying their size and leads to an increase in specific exosome markers. Various exosome-carried microRNAs involved in regulating skeletal muscle tissue proliferation and differentiation are released in response to exercise. However, methodological factors such as exosome isolation and characterization, as well as timing of sample recovery post-exercise, can impact the analysis and interpretation of findings.
Exercise-released exosomes have been identified as novel players to mediate cell-to-cell communication in promoting systemic beneficial effects. This review aimed to systematically investigate the effects of exercise on exosome release and cargo, as well as provide an overview of their physiological implications. Among the 436 articles obtained in the database search (WOS, Scopus, and PubMed), 19 articles were included based on eligibility criteria. Results indicate that exercise promotes the release of exosomes without modification of its vesicle size. The literature has primarily shown an exercise-driven increase in exosome markers (Alix, CD63, CD81, and Flot-1), along with other exosome-carried proteins, into circulation. However, exosome isolation, characterization, and phenotyping methodology, as well as timing of sample recovery following exercise can influence the analysis and interpretation of findings. Moreover, a large number of exosome-carried microRNAs (miRNAs), including miR-1, miR-133a, miR-133b, miR-206, and miR-486, in response to exercise are involved in the modulation of proliferation and differentiation of skeletal muscle tissue, although antigen-presenting cells, leukocytes, endothelial cells, and platelets are the main sources of exosome release into the circulation. Collectively, with the physiological implications as evidenced by the ex vivo trials, the release of exercise-promoted exosomes and their cargo could provide the potential therapeutic applications via the role of intercellular communication.
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