Bcl-2表达与小鼠腹腔巨噬细胞凋亡的关系

利用免疫荧光技术和激光扫描共聚焦显微镜（共焦镜）技术检测了地塞米松介导小鼠腹腔巨噬细胞凋亡时调亡抑制基因Ｂｃｌ－２表达的时空变化。结果显示，免疫荧光技术和共焦镜技术可对细胞内的蛋白表达作定量和定位检测，凋巨噬细胞内Ｂｃｌ－２逐渐减少，核中Ｂｃｌ－２相对量逐渐减少，胞浆中Ｂｃｌ－２相对量逐渐增多，Ｂｃｌ－２表达和地塞米松介导的巨噬细胞凋亡呈极显著负相关。结果表明，地塞米松介导巨噬细胞凋亡时，凋亡抑制

The Relationship between Bcl-2 Expression and Apoptosis of Murine Peritoneal Macropgages

By combined using of the immunofluorescence andlaser scanning confocal microscope, the space-time changes in expression ofapoptosis-inhibited gene Bcl-2 in apoptotic macrophages induced by dexamethasone wereexamined. The results showed, the intracellular protein expression can be detectedquantitatively and orientationally. Bcl-2 in the apoptotic cells decreased gradually. Therelative quantities of the Bcl-2 in the nucleus of apoptotic cells decreased also. Butthat in the cytoplasm increased. There existed an apparent significant negativecorrelation between expression of Bcl-2 and macrophage apoptosis. The results indicated,there occurred space-time changes in expression of apoptosis-inhibited gene Bcl-2 inapoptotic macrophages induced by dexamethasone. The macrophage apoptosis was inhibitedmarkedly by Bcl-2. Combined using of the immunofluorescence and laser scanning confocalmicroscope was an ideal method for detection of intracellular protein expression.