DMD and Duchenne muscular dystrophy: Consistent with the western blot results, the immunofluorescence microscopy data confirmed rescue of dystrophin synthesis in DMD.Δ48-50 and DMD.Δ45-52 myotubes whose progenitors had been exposed to AdV.Cas9IN43.IN54 or AdV.Cas9EX51 (Fig. 4).