Skeletal muscle mitochondrial function

Skeletal muscle mitochondrial function encompasses the activity of mitochondria within muscle cells, primarily associated with ATP synthesis via oxidative phosphorylation to meet the energy demands of contraction and adaptation to exercise. Mitochondria in skeletal muscle are morphologically and functionally specialized, with subsarcolemmal and intermyofibrillar populations contributing differentially to energy homeostasis, metabolic flexibility, and cellular signaling. The regulation of function is critically dependent on coordinated mitochondrial dynamics (biogenesis, fusion/fission, mitophagy) and the interplay with transcriptional networks (PGC-1α, AMPK, nuclear receptors). Impaired mitochondrial function is central to a range of muscle pathologies, aging-related muscle decline, and systemic metabolic disorders. This is not a canonical molecular target for drugs, but rather a complex functional and organelle-level concept critical in muscle biology. In drug discovery, more specific molecular targets (e.g., PGC-1α, Mfn2, OPA1, AMPK) involved in mitochondrial regulation are preferred.

Other names

skeletal muscle mitochondriamuscle mitochondrial functionmuscle mitochondrial activity

Drugs or interventions affecting mitochondrial biogenesis (PGC-1α pathway), fusion/fission (Mfn1, Mfn2, OPA1), metabolic regulation (AMPK activation), and oxidative stress modulation