Redox Control of Signalling Responses to Contractile Activity and Ageing in Skeletal Muscle
Overview
Biophysics
Cell Biology
Molecular Biology
Affiliations
Research over almost 40 years has established that reactive oxygen species are generated at different sites in skeletal muscle and that the generation of these species is increased by various forms of exercise. Initially, this was thought to be potentially deleterious to skeletal muscle and other tissues, but more recent data have identified key roles of these species in muscle adaptations to exercise. The aim of this review is to summarise our current understanding of these redox signalling roles of reactive oxygen species in mediating responses of muscle to contractile activity, with a particular focus on the effects of ageing on these processes. In addition, we provide evidence that disruption of the redox status of muscle mitochondria resulting from age-associated denervation of muscle fibres may be an important factor leading to an attenuation of some muscle responses to contractile activity, and we speculate on potential mechanisms involved.
The link between Mitochondria and Sarcopenia.
Kamarulzaman N, Makpol S J Physiol Biochem. 2025; .
PMID: 39969761 DOI: 10.1007/s13105-024-01062-7.
Fernandez-Rhodes M, Buchan E, Gagnon S, Qian J, Gethings L, Lees R J Extracell Biol. 2024; 3(8):e171.
PMID: 39169919 PMC: 11336379. DOI: 10.1002/jex2.171.
The Double-Edged Sword of ROS in Muscle Wasting and COPD: Insights from Aging-Related Sarcopenia.
Chan S, Selemidis S, Vlahos R Antioxidants (Basel). 2024; 13(7).
PMID: 39061950 PMC: 11274264. DOI: 10.3390/antiox13070882.
Reactive oxygen species promote endurance exercise-induced adaptations in skeletal muscles.
Powers S, Radak Z, Ji L, Jackson M J Sport Health Sci. 2024; 13(6):780-792.
PMID: 38719184 PMC: 11336304. DOI: 10.1016/j.jshs.2024.05.001.
Nitrosative Stress in Astronaut Skeletal Muscle in Spaceflight.
Blottner D, Moriggi M, Trautmann G, Furlan S, Block K, Gutsmann M Antioxidants (Basel). 2024; 13(4).
PMID: 38671880 PMC: 11047620. DOI: 10.3390/antiox13040432.