Beneficial Effect of HS-Releasing Molecules in an In Vitro Model of Sarcopenia: Relevance of Glucoraphanin
Overview
Chemistry
Molecular Biology
Authors
Affiliations
Sarcopenia is a gradual and generalized skeletal muscle (SKM) syndrome, characterized by the impairment of muscle components and functionality. Hydrogen sulfide (HS), endogenously formed within the body from the activity of cystathionine-γ-lyase (CSE), cystathionine- β-synthase (CBS), and mercaptopyruvate sulfurtransferase, is involved in SKM function. Here, in an in vitro model of sarcopenia based on damage induced by dexamethasone (DEX, 1 μM, 48 h treatment) in C2C12-derived myotubes, we investigated the protective potential of exogenous and endogenous sources of HS, i.e., glucoraphanin (30 μM), L-cysteine (150 μM), and 3-mercaptopyruvate (150 μM). DEX impaired the HS signalling in terms of a reduction in CBS and CSE expression and HS biosynthesis. Glucoraphanin and 3-mercaptopyruvate but not L-cysteine prevented the apoptotic process induced by DEX. In parallel, the HS-releasing molecules reduced the oxidative unbalance evoked by DEX, reducing catalase activity, O levels, and protein carbonylation. Glucoraphanin, 3-mercaptopyruvate, and L-cysteine avoided the changes in myotubes morphology and morphometrics after DEX treatment. In conclusion, in an in vitro model of sarcopenia, an impairment in CBS/CSE/HS signalling occurs, whereas glucoraphanin, a natural HS-releasing molecule, appears more effective for preventing the SKM damage. Therefore, glucoraphanin supplementation could be an innovative therapeutic approach in the management of sarcopenia.
Synthesis of ω-Methylsulfinyl- and ω-Methylsulfonylalkyl Glucosinolates.
Mavratzotis M, Cassel S, De Nicola G, Montaut S, Rollin P Molecules. 2025; 30(3).
PMID: 39942806 PMC: 11819801. DOI: 10.3390/molecules30030704.
Plant-Derived Treatments for Different Types of Muscle Atrophy.
Wang X, Tang X, Wang Y, Zhao S, Xu N, Wang H Phytother Res. 2025; 39(2):1107-1138.
PMID: 39743857 PMC: 11832362. DOI: 10.1002/ptr.8420.
The Antioxidant Properties of Glucosinolates in Cardiac Cells Are Independent of HS Signaling.
Harvey F, Aromokunola B, Montaut S, Yang G Int J Mol Sci. 2024; 25(2).
PMID: 38255773 PMC: 10815443. DOI: 10.3390/ijms25020696.
Casertano M, Esposito E, Bello I, Indolfi C, Putra M, Di Cesare Mannelli L Mar Drugs. 2023; 21(12).
PMID: 38132963 PMC: 10744941. DOI: 10.3390/md21120641.
Highlights in Pathophysiology of the Musculoskeletal System.
Barone R, Szychlinska M Int J Mol Sci. 2023; 24(7).
PMID: 37047383 PMC: 10094568. DOI: 10.3390/ijms24076412.