›› 2011, Vol. 38 ›› Issue (7): 63-65.

• 生理生化 • 上一篇    下一篇

土槿皮乙酸B增加活性氧水平诱导人乳腺癌MCF-7细胞凋亡和衰老的研究

于静华1, 张亚宏2, 刘春禹3, 张文艳1, 田代真一4, 小野寺敏4, 于晓方1, 池岛乔5   

  1. 1. 吉林大学白求恩第一医院艾滋病与病毒研究所,吉林长春 130021;2. 河南大学天然药物与免疫工程重点实验室,河南开封 475004;3. 吉林省中医院针灸科,吉林长春 130021;4. 昭和药科大学病态科学教研室,东京 194-8543;5. 沈阳药科大学中日医药研究所,辽宁沈阳 110016
  • 收稿日期:1900-01-01 修回日期:2011-05-10 出版日期:2011-07-20 发布日期:2011-07-20
  • 通讯作者: 池岛乔,于晓方

Pseudolaric Acid B Induced Apoptosis and Senescence Through ROS in MCF-7 Cells

YU Jing-hua1, ZHANG Ya-hong2, LIU Chun-yu3, ZHANG Wen-yan1, Tashiro Shin-ichi4, Onodera Satoshi4, YU Xiao-fang1, Ikejima Takashi5   

  1. 1. Research Institute of HIV and Virus,The First Hospital of Jilin University,Changchun 130021,China;2. Key Laboratory of Natural Medicine and Immuno-Engineering,Henan University,Kaifeng 475004,China;3. Acupunture,The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun 130021,China;4. Dept of Clinical and Biomedical Sciences,Showa Pharmaceutical University, Tokyo 194-8543,Japan;5. China-Japan Research Institute of Medical and Pharmaceutical Sciences,Shenyang Pharmaceutical University, Shenyang 110016,China
  • Received:1900-01-01 Revised:2011-05-10 Online:2011-07-20 Published:2011-07-20

摘要: 本研究旨在研究土槿皮乙酸B(PAB)诱导人乳腺癌MCF-7细胞凋亡和衰老与活性氧的关系。在相差显微镜下观察4 μmol/L PAB在36 h诱导细胞凋亡小体的出现;LDH方法显示PAB时间依赖性的增加凋亡比率;SA-β-半乳糖苷酶显示4 μmol/L PAB作用3 d后,去药再作用5 d,96%的细胞蓝染,细胞变大且扁平;流式细胞仪检测用DCFH-DA染色后4 μmol/L PAB 时间依赖性增加细胞内活性氧水平。所以4 μmol/L PAB通过增加细胞内活性氧水平促进细胞凋亡和衰老。

关键词: 土槿皮乙酸B (PAB); 凋亡; 衰老; 人乳腺癌MCF-7细胞; 活性氧

Abstract: To study the relationship of ROS and pseudolaric acid B (PAB)-induced MCF-7 cell apoptosis and senescence. Contrast phase microscope was used to observe cellular morphologic alternation; LDH assay was performed to assess apoptosis ratio; galactosidase staining showed cell senescence; and flow cytometric analysis of DCFH-DA staining determined the level of ROS. We found that PAB induced MCF-7 cell apoptosis in time-dependent manner. 4 μmol/L PAB treated MCF-7 for 3 d,then replace PAB with fresh DMEM for 5 d,cell became senescence. PAB increased ROS level in time dependent manner. Therefore,PAB increased ROS level to induce apoptosis and senescence.

Key words: pseudolaric acid B; apoptosis; senescence; MCF-7; ROS

中图分类号: