塔斯品碱诱导肺癌细胞A549凋亡的实验研究

Study on Thaspine in Inducing Apoptosis of A549 Cell

目的:探讨塔斯品碱对肺癌细胞A549增殖、凋亡以及细胞周期的影响。方法:进行人肺腺癌细胞株A549细胞培养,不同浓度塔斯品碱干预,采用MTT法、流式细胞术、透射电镜等技术,研究不同浓度塔斯品碱对其增生、凋亡以及细胞周期的影响。结果:塔斯品碱可抑制A549细胞增殖,诱导A549细胞凋亡,且呈时间剂量依赖性;FCM检测发现塔斯品碱阻滞细胞周期于S期;电镜下可见塔斯品碱能够诱导细胞出现核固缩、细胞核内染色质凝聚和凋亡小体等凋亡现象。结论:塔斯品碱有抗肿瘤和诱导肿瘤细胞凋亡的作用。

Objective： To investigate the effect of thaspine on the cellular proliferation, apoptosis and cell cycle in A549 cell line. Methods ： A549 cell was cultured with different concentrations of thaspine. Cellular proliferation was detected with MTT, apoptosis and cell cycle were checked with Flow Cytometer, and change of microstructure was observed by transmission electron microscope. Results： Thaspine could inhibit the proliferation and induce apoptosis of A549 cell in a time-dose dependent manner. Cell cycle was significantly stopped at the S phase by thaspine with FCM technology. Under electronic microscope, the morphology of A549 cell showed nuclear karyopycnosis, chromatin agglutination and typical apoptotic body when the cell was treated with thaspine. Conclusion： Thaspine has the effects of anti-tumor and inducing apoptosis.