Satellite Cells, Skeletal MusclePAX7 Transcription FactorMuscle, SkeletalMuscle DevelopmentRegenerationMyoD ProteinMuscle Fibers, SkeletalCell DifferentiationDNA, SatelliteCells, CulturedCell LineageSatellite Cells, PerineuronalMyoblastsMusclesMyogenic Regulatory Factor 5RNA, SatelliteMyogeninMice, Inbred mdxSatellite CommunicationsCell ProliferationRNASatellite VirusesMuscle ProteinsPaired Box Transcription FactorsDesminRNA, MessengerStem CellsMyoblasts, SkeletalMice, Inbred C57BL