莪术油对人肺腺癌细胞A549增殖的影响

Effect of Zedoary Turmeric Oil on Proliferation in Human Lung Adenocarcinoma Cell Line A549

目的探讨莪术油对人肺腺癌细胞A549增殖的抑制作用。方法体外培养肺腺癌细胞A549,MTT比色法测定莪术油对A549细胞作用24、48、72 h后抑制率;流式细胞术分析莪术油对A549细胞作用24 h后细胞周期的变化;AnnexinⅤ-FITC/PI双染检测莪术油对A549细胞作用24 h后细胞凋亡与坏死情况。结果莪术油对A549细胞增殖的抑制率随时间延长明显升高,随药物浓度增加抑制作用增强;莪术油对A549细胞作用24 h后,细胞周期停滞在G0/G1期,阻止其进入S期;细胞的早期凋亡、晚期凋亡和坏死比例随着莪术油浓度的增加而增加,且坏死细胞的比例高于凋亡细胞。结论莪术油对A549细胞的增殖具有抑制作用,并呈时间、浓度依赖,其作用是通过阻滞细胞周期及诱导凋亡和坏死来实现的。

Objective To explore the inhibiting effect of Zedoary turmeric oil on the proliferation of A549 cell line. Methods Lung adenocarcinoma cell line A549 was cultured in vitro. The inhibition rate of Zedoary turmeric oil on the proliferation of lung adenocarcinoma cell line A549 for 24, 48, 72 h were determined by MTT colorimetric assay. The cell cycle of lung adenocarcinoma cell line A549 stimulated by Zedoary turmeric oil for 24 h was analyzed by flow cytometry. The apoptosis and necrosis of lung adenocarcinoma cell line A549 stimulated by Zedoary turmeric oil for 24 h was tested by Annexin V-FITC/PI assay. Results MTT assay indicated that the inhibition rate of Zedoary turmeric oil on the proliferation of lung adenocarcinoma cell line A549 increased significantly with the growing of time and concentration. Further analysis by flow cytometry indicated that Zedoary turmeric oil stimulating the A549 cells for 24 h led to G0/G1 phase arrest and blocked S phase entry. Meanwhile cells in early apoptosis, late apoptosis and necrosis were increased, and the percentage of necrotic cells was more than apoptotic cells with the increase of the concentration of Zedoary turmeric oil. Conclusion Zedoary turmeric oil can markedly inhibit the proliferation of lung adenocarcinoma cell line A549 in time-dependent and dose-dependent manners, and its role was achieved through preventing cell-cycle progression and inducing apoptosis and necrosis.