We did not investigate the extent of MABs (and MABs + mMAG) engraftment in the injected skeletal muscles and that of MABs integration in regenerating fibers, as (1) it was diffusely proven and shown in previous published studies [32–36, 41, 55]: MABs can fuse with regenerating myotubes and restore missing proteins in loss-of-function myopathies; (2) this was not the scope of our study, as our goal was to demonstrate that injected MABs can secrete MAG in the skeletal muscles (recognized by the myc tag). The gene discussed is MYC; the disease is myopathy.