miR-16-5p Is a Novel Mediator of Venous Smooth Muscle Phenotypic Switching.
J Cardiovasc Transl Res
; 15(4): 876-889, 2022 08.
Article
en En
| MEDLINE
| ID: mdl-35501542
ABSTRACT
Vein graft failure after coronary artery bypass grafting (CABG) is primarily caused by intimal hyperplasia, which results from the phenotypic switching of venous smooth muscle cells (SMCs). This study investigates the role and underlying mechanism of miR-16-5p in the phenotypic switching of venous SMCs. In rats, neointimal thickness and area increased over time within 28 days after CABG, as did the time-dependent miR-16-5p downregulation and SMC phenotypic switching. Platelet-derived growth factor-BB-induced miR-16-5p downregulation in HSVSMCs was accompanied by and substantially linked with alterations in phenotypic switching indicators. Furthermore, miR-16-5p overexpression increased SMCs differentiation marker expression while suppressing HSVSMCs proliferation and migration and drastically inhibiting neointimal development in vein grafts. The miR-16-5p inhibited zyxin expression, which was necessary for HSVSMCs phenotypic switching. The miR-16-5p/zyxin axis is a novel, potentially therapeutic target for preventing and treating venous graft intimal hyperplasia.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
MicroARNs
/
Músculo Liso Vascular
Límite:
Animals
Idioma:
En
Revista:
J Cardiovasc Transl Res
Asunto de la revista:
ANGIOLOGIA
/
CARDIOLOGIA
Año:
2022
Tipo del documento:
Article
País de afiliación:
China