Myogenesis (None)

Myogenesis is the complex, multi-step biological process of muscle tissue formation, occurring predominantly during embryonic development and adult muscle regeneration following injury [1, 4]. It involves the commitment of mesenchymal stem cells to the myogenic lineage, the proliferation of myoblasts, and their subsequent fusion into multinucleated myotubes and mature myofibers [3, 5]. This physiological program is primarily orchestrated by a family of basic helix-loop-helix transcription factors known as myogenic regulatory factors (MRFs), which include MyoD, Myf5, myogenin, and MRF4 [4, 6, 8]. While myogenesis is not a single molecular target, its underlying pathways are critical focal points for therapeutic intervention in muscular dystrophies, age-related sarcopenia, and muscle-wasting conditions like cachexia [9]. Pharmacological modulation of this process often involves targeting negative regulators like myostatin or using epigenetic modifiers such as HDAC inhibitors to enhance muscle repair and growth [9, 12]. Furthermore, in certain cancers like rhabdomyosarcoma, the myogenesis program is hijacked or stalled, leading to the uncontrolled proliferation of undifferentiated muscle-like cells rather than terminal differentiation [10]. Understanding the molecular switches governing myogenesis is vital for developing regenerative medicines and targeted therapies for neuromuscular disorders [7].

Other names

Muscle developmentMyogenic differentiationSkeletal muscle formationMuscle cell formationMuscle regeneration

Myogenesis is a biological process rather than a single molecule; it is characterized by the progression of myogenic progenitor cells through proliferation, differentiation, and fusion into myofibers. Pharmacological agents typically influence this process by modulating signaling pathways such as Wnt, Notch, and Akt/mTOR, or by using epigenetic modifiers like histone deacetylase (HDAC) inhibitors to control the expression of myogenic regulatory factors (MRFs).