Mechanical support and local sirolimus delivery (medical device function)

The name provided does not refer to a specific molecule or receptor but to the function of bioresorbable vascular scaffolds or sirolimus-eluting stents/balloons. These drug-device combination products are implanted into blood vessels, usually coronary arteries, to mechanically support the vessel wall after angioplasty, preventing immediate vessel recoil and negative remodeling, while locally eluting sirolimus over weeks to months. Sirolimus inhibits neointimal hyperplasia by blocking vascular smooth muscle cell proliferation and migration, thus reducing the risk of restenosis. These devices represent an important advance over bare-metal stents by addressing both the mechanical and biological causes of vessel narrowing after intervention. Their use is associated with limited systemic sirolimus exposure and specific procedural and vascular safety considerations. This entry is not a canonical therapeutic target but describes a device-mediated therapeutic strategy for vascular interventions.

Other names

Mechanical vascular scaffold (device)Sirolimus-eluting stent (SES)Sirolimus-eluting bioresorbable vascular scaffold (BRS)Drug-eluting balloon (DEB), sirolimus-coatedDrug-eluting stent (DES), sirolimus type

Local elution of sirolimus to inhibit proliferation and migration of vascular smooth muscle cells, blocking cell cycle progression. Mechanical scaffolding to prevent vessel recoil and negative remodeling.