穿心莲内酯对卵巢癌细胞株SKOV-3侵袭与凋亡的影响

目的:观察穿心莲内酯对卵巢癌细胞株SKOV-3侵袭与凋亡的影响并探讨初步的作用机制。方法:CCK-8法检测不同浓度(0、5、10、20和40μmol/L)的穿心莲内酯对SKOV-3细胞作用不同时间(12、24、36和48h)后,SKOV-3细胞存活率的变化;Transwell法与TUNEL法分别检测SKOV-3细胞侵袭能力与凋亡能力的变化;Western blot法检测p-PI3K、p-Akt与p-mTOR蛋白水平的变化。结果:CCK-8法检测结果显示,随着浓度增加与培养时间延长,穿心莲内酯对SKOV-3细胞存活率的抑制程度增强;采用20μmol/L穿心莲内酯培养SKOV-3细胞36h后,SKOV-3细胞的侵袭数明显降低,凋亡数明显增加(P0.05),p-PI3K、p-Akt与p-mTOR的蛋白水平明显降低(P0.05)。结论:穿心莲内酯能够抑制卵巢癌细胞SKOV-3的活力与侵袭能力,增强凋亡能力,这可能与抑制PI3K/Akt/mTOR信号通路有关。

Effects of andrographolide on invasion and apoptosis of ovarian cancer SKOV-3 cells

AIM:To investigate the effects of andrographolide on the invasion and apoptosis of ovarian cancer cell line SKOV-3,and to explore the possible mechanisms.METHODS:SKOV-3 cells were treated with different concentrations (0,5,10,20 or 40 μmol/L) of andrographolide for different time (12,24,36 or 48 h),and then the cell viability was determined by CCK-8 assay.The cell invasion ability was analyzed by Transwell assay and cell apoptosis was detected by TUNEL staining.The protein levels of p-PI3K,p-Akt and p-mTOR were examined by Western blot.RESULTS:The results of CCK-8 assay revealed that andrographolide inhibited the growth of SKOV-3 cells in a dose-and time-dependent manner.Treatment with andrographolide at 20 μmol/L for 36 h significantly decreased the invasion ability of SKOV-3 cells,while increased cell apoptosis.In addition,the protein levels of p-PI3K,p-Akt and p-mTOR were reduced after andrographolide treatment.CONCLUSION:Andrographolide inhibits the growth and invasion of ovarian cancer SKOV-3 cells by suppression of PI3K/Akt/mTOR signaling pathway.