MHY1485 is an mTOR activator that is cell-permeable. MHY1485 inhibits autophagosome and lysosome fusion, leading to accumulation of LC3II proteins and increased autophagosomes, thereby inhibiting cellular autophagy.

mTOR:~2 μM

Ovaries from mice at day10 of age are treated with 10 μM MHY1485 for 3h and proteins are extracted using M-PER Mammalian Protein Extraction Reagent containing a protease inhibitor cocktail. Protein concentrations in supernatants are determined by the bicinchoninic acid method. Equal amounts of protein lysates are loaded on 4-12% NuPAGE Bis-Tris gels in MOPS buffer and transferred to 0.45 μM pore nitrocellulose membranes[2].

MHY1485 is dissolved in DMSO and then diluted with appropriate media[3]. MC3T3-E1 cells are maintained in Dulbecco's modified Eagle's medium (DMEM) supplemented with 10% fetal bovine serum (FBS), 100 U/mL penicillin and 100 mg/mL streptomycin at 37°C in a humidified atmosphere of 5% CO2. Having reached 70% confluence, the culture medium is switched to commercial osteogenic differentiation medium. MC3T3-E1 cells are cultured in the osteogenic differentiation medium for 14 days, following by culture in DMEM supplemented with varying concentrations of liraglutide for a further 14 days. MC3T3-E1 cells treated with 4 nM liraglutide are cultured in the presence or absence of Compound C or MHY1485. MC3T3-E1 cells maintained in DMEM for 28 days in the absence of any treatment are used as the negative control (NC); cells cultured in commercial osteogenic differentiation medium for 14 days and in DMEM without liraglutide for an additional 14 days are used as the positive control (PC)[3].