Effect of PM10 in Moxa Smoke on Apoptosis of Human Lung Adenocarcinoma Cell Line-A549 Cells / 中国中医药信息杂志

ABSTRACT

Objective To observe the effect of PM10 (inhalable particles) in moxa smoke on apoptosis of human lung adenocarcinoma cell line-A549 cells, and explore the possible mechanisms of inducing apoptosisMethods The A549 cells were studied in vitro experiment method, which were stained by Hoechest33258 staining method. Their morphological changes of apoptosis were observed by the fluorescence microscopy. The levels of intracellular Ca2+ and reactive oxygen species (ROS), and expression of NF-κB p65 were also measured.Results Some apoptotic cells were observed after treated with moxa smoke PM10 in the concerntration of 400μg/mL. After 4 hours intervention by moxa smoke PM10 in A549 cells, the intracellular Ca2+ level increased significantly (P0.05). Compared with the blank control group, ROS level was significantly lower (P<0.05) in A549 cells after intervention of moxa smoke PM10.Conclusion PM10 in moxa smoke could induce apoptosis of A549 cells, could increase cytosolic Ca2+ level.