Preventive effects of the butanol fraction of L. against dexamethasone-induced muscle atrophy in C2C12 myotubes.

Heliyon

College of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi-do, 15588, Republic of Korea.

Published: November 2022

Skeletal muscle atrophy is associated with many diseases including cancer, inflammatory diseases, neuromuscular diseases, and acute critical illness. L. has been used as a herbal remedy, but the pharmacological effect of on muscle atrophy has not yet been reported. Herein, we investigate the anti-atrophic effect of the -butanol fraction of (JPBuFr) on dexamethasone (DEX)-induced muscle atrophy in C2C12 myotubes. The myotubes diameter, MHC positive area, ROS production, and mitochondria contents were observed under a fluorescence microscope, and various proteins related to degradation or synthesis were analyzed by western blots. JPBuFr significantly attenuated a reduction of myotube diameter, mitochondrial content, ATP level, myosin heavy chain, and myogenin expression induced by DEX. Furthermore, co-treatment of DEX and JPBuFr not only increased phosphorylation of Akt, mTOR, and p70S6K proteins but also decreased reactive oxygen species production and expression of protein degradation factors (MuRF1, Atrogin-1, FoxO3a) compared to DEX treatment. These results suggest that JPBuFr may provide potential protective effects against muscle atrophy, giving it potential for the development of anti-atrophic health functional foods.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9713280PMC
http://dx.doi.org/10.1016/j.heliyon.2022.e11597DOI Listing

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