【作者】 潘小翠; 杨明俊; 冯慧琴; 杨庆尧; 杨晓彤;
【Author】 PAN Xiao-cui1,YANG Ming-jun1,FENG Hui-qin1,YANG Qing-yao2,YANG Xiao-tong1,2 (1.Institute of Microbiology and Immunology,Shanghai Normal University,Shanghai 200234; 2.Shanghai Zhi-Herb Biotechnology Co.,Ltd,Shanghai 200234)
【机构】 上海师范大学微生物与免疫学研究所; 上海芝草生物技术有限公司;
【摘要】 研究了云芝子实体氯仿提取物(CVFC)对人肝癌细胞株HepG2的体外抑制作用,并初步探讨了抑瘤机制。MTT结果显示,CVFC对HepG2细胞有明显的抑制作用,并呈明显的量效关系,半数抑制浓度为(75.83±3.96)μg.mL-1。荧光显微镜和透射电镜形态观察发现CVFC处理可使细胞发生细胞皱缩、核碎裂等凋亡特征;Annexin V/PI双染结果证实有胞膜磷脂酰丝氨酸的翻转,经150μg.mL-1 CVFC处理HepG2细胞24 h后早期凋亡率为17.82%,晚期凋亡率为22.59%,均显著高于对照组5.35%和3.75%。这些结果表明CVFC具有体外抑制HepG2细胞的活性,其抑瘤机制与诱导肿瘤细胞凋亡有关。
【Abstract】 In this report,in vitro the inhibition and cytotoxic effects of a chloroform extract from Trametes versicolor fruiting body(CVFC) was studied using a liver carcinoma HepG2 cell line.MTT assay results showed the CVFC inhibited HepG2 cells growth in a dose-dependent manner.The IC50 was found as(75.83±3.96) μg·mL-1.Cell morphological observation using fluorescent microscope and transmission electron microscope revealed that the CVFC treated cells presented typical apoptotic characteristics,includin...
【关键词】 云芝; 子实体; 抗肿瘤活性; HepG2; 凋亡;
【Key words】 T.versicolor; Fruiting body; Anti-tumor; HepG2; Apoptosis;
【基金】 上海市科委创新基金项目(0802H48400)
【分类号】R28