Coronary artery smooth muscle (VSMC)

Coronary artery smooth muscle refers to the collection of vascular smooth muscle cells (VSMCs) that reside in the tunica media of the coronary arteries. These cells regulate arterial tone, blood flow, and blood pressure through contraction and relaxation, acting under autonomic and humoral control. In disease states such as atherosclerosis and restenosis, VSMCs play critical and complex roles: contributing to plaque growth and stability, undergoing phenotypic switching to macrophage-like or osteogenic forms, and participating in fibrosis and scar tissue formation. Although not a single molecular target, numerous proteins and pathways within coronary artery VSMCs represent current and emerging therapeutic opportunities to treat or prevent coronary artery disease, restenosis, and related vascular pathologies. For structured and mechanistic insight, it is essential to specify the exact molecular entity of interest on, or within, these cells (e.g., "L-type calcium channel," "SMC α-actin," "TGF-β receptor") as opposed to the general cell type.

Other names

Vascular smooth muscle cell (VSMC)Coronary artery vascular smooth muscle cellArterial smooth muscle cell

(For drugs acting on VSMCs generally) - Inhibition of cell proliferation (blocking DNA/RNA synthesis) - Cytoskeletal modulation, prevention of migration and remodeling - Inhibition of phenotypic switching or foam cell formation - Modulation of vasomotor tone through calcium channel blockade or NO release.