冠状动脉再狭窄是影响冠脉成形术远期疗效的重要问题。在其形成过程中，诸多生长因子参与作用。血小板源生长因子具有促进血管平滑肌细胞增殖和迁移作用，从而导致再狭窄的发生 Coronary artery restenosis is an important issue affecting the long-term efficacy of coronary angioplasty. In the process of its formation, many growth factors are involved. Platelet derived growth factor can promote the proliferation and migration of vascular smooth muscle cells, leading to the occurrence of restenosis