Dorsomorphin dihydrochloride (Compound C dihydrochloride, 10 μM, MedChemExpress, China) [27 (link)] was used to inhibit the activity of AMPK and SR-18292 (20 μM, MedChemExpress, China) [28 (link)] was used to inhibit the activity of PGC1α, respectively. After 5 days of differentiation, C2C12 cells were incubated with the intervention for 18 h in the CON group (PBS), DEX group (100 μM dexamethasone), DG group (100 μM dexamethasone + 5 × 108 particles/mL GqDNVs), CC group (10 μM Compound C dihydrochloride + 100 μM dexamethasone + 5 × 108 particles/mL GqDNVs) and SR group (20 μM SR-18292 + 100 μM dexamethasone + 5 × 108 particles/mL GqDNVs).
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