摘要
线粒体作为细胞能量的“动力工厂”,在细胞的生理过程中起着重要的作用,本文采用三氧化二砷(As2 O3) 诱导MGC- 803 细胞凋亡,通过罗丹明123 和Hoechest33258 对细胞进行荧光标记,利用具有光子计数成像能力的超高灵敏度荧光显微镜观察凋亡细胞与未加入As2 O3 的对照组细胞的区别,发现As2 O3
Mitochondrion plays an important role in the cell physiological process. In this article, the change of apoptotic MGC-803 cell induced by As2O3 was investigated. The fluorescent probes used were Rhodamine 123 and Hoechest 33258. By the ultra-high-sensitive fluorescence microscope with the ability of photon counting, the characteristics of the apoptotic cells were compared with those without As2O3. The result indicated that the reduction of the electric potential differences of mitochondrial membrane was one of important roles of As2O3 inducing MGC-803 cells to apoptosis.
出处
《生物物理学报》
CAS
CSCD
北大核心
1999年第3期472-474,共3页
Acta Biophysica Sinica
基金
863 计划308 主题
国家自然科学基金
关键词
细胞凋亡
肿瘤
线粒体
三氧化二砷
Apoptosis Ultra-high-sensitive fluorescence microscope Mitochondrion