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甘草皂碱对人恶性胶质瘤细胞生长及凋亡的影响

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摘要 目的研究甘草皂碱对人恶性胶质瘤细胞生长及凋亡的影响。方法使用甘草皂碱(实验组)处理人恶性胶质瘤细胞,MTT及平板克隆检测胶质瘤细胞的增殖;Annexin V/PI染色流式细胞术检测胶质瘤细胞的凋亡;裸鼠皮下成瘤实验检查甘草皂碱在体内对胶质瘤细胞的增殖抑制作用。以0.9%NaCl处理作为空白对照。结果与空白对照组比较,实验组胶质瘤细胞的增殖被抑制,U87和U251的IC50分别为(57.9±1.8)μg/mL和(69.3±2.6)μg/mL;细胞凋亡率分别为(17.8±4.3)%和(19.3±3.8)%。实验组U87和U251细胞的AKT磷酸化水平及期下游分子Bcl-2、cyclin D1表达水平降低。与对照组比较,给予甘草皂碱的药物组裸鼠皮下成瘤能力减弱。结论甘草皂碱抑制胶质瘤细胞增殖,促进胶质瘤细胞凋亡,从而发挥抑制胶质瘤细胞生长的作用;而这一作用是通过抑制AKT及其下游分子信号通路实现的。
出处 《广东医学》 CAS CSCD 北大核心 2014年第3期367-370,共4页 Guangdong Medical Journal
基金 广东省中医药局建设中医药强省科研立项课题(编号:20132155)
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