The expression of the early myogenic regulatory markers Pax7 (controls 0.0076 ± 0.0011 and S107 0.004 ± 0.0003, p = 0.02) and to a lower extent (not significant) Myf5 (controls 0.284 ± 0.066 and S107 0.232 ± 0.053, p = 0.5) was reduced in S107-treated compared with untreated DMD cells. This evidence concerns the gene MYF5 and Duchenne muscular dystrophy.