目的：探讨微小RNA(micro RNA，miR)-21对香烟烟雾提取物(cigarette smoke extract，CSE)诱导的巨噬细胞自噬、增殖和凋亡的影响。
To explore the effects of miR-21 on macrophage autophagy, proliferation and apoptosis induced by cigarette smoke extract (CSE).