Striated muscle cell

Striated muscle cells, which include both skeletal and cardiac muscle fibers, are characterized by a highly organized internal structure of sarcomeres that give them a striped appearance under microscopic examination (StatPearls, 2023). These cells are specialized for contraction, a process driven by the ATP-dependent interaction of actin and myosin filaments in response to calcium signaling (NIH, 2022). While "striated muscle cells" is a cell type rather than a single molecular target, it contains numerous specific targets for drug therapy, such as the ryanodine receptor and various voltage-gated ion channels (PubMed, 2021). Dysfunction in these cells or their regulatory proteins leads to a wide range of conditions, including muscular dystrophies, heart failure, and various myopathies (Mayo Clinic, 2023). Drugs targeting these cells often aim to modulate contractile force, stabilize membrane potential, or prevent degenerative processes (PubChem, 2024). For instance, calcium channel blockers are used to manage cardiac muscle activity, while neuromuscular blockers act on the receptors that trigger skeletal muscle contraction (StatPearls, 2023).

Other names

Skeletal muscle cellCardiac muscle cellMyocyteStriated myocyteMyofiber

Pharmacological agents interact with striated muscle cells by modulating ion channels (e.g., L-type calcium channels, sodium channels), antagonizing neurotransmitter receptors at the neuromuscular junction (e.g., nicotinic acetylcholine receptors), or altering the sensitivity of the contractile apparatus (e.g., troponin-C) (StatPearls, 2023; PubChem, 2024).