MTOR and myotonic dystrophy type 1: The levels of p-mTOR/mTOR and P62 in DM1-03 SSCs were significantly lower than those in DM1-04 SSCs, while those in DM1-13-3 SSCs were significantly higher than those in DM1-03 SSCs, but lower than those in DM1-04 SSCs (Fig. 4a, b).