INTRODUCTIONIn China ,the incidence and mortality of gastric cancer rank the second among all cancers. Recent development of cancer [1-20].The aim of this study was investigat the insight of apoptosis and bcl-2, p53 a...INTRODUCTIONIn China ,the incidence and mortality of gastric cancer rank the second among all cancers. Recent development of cancer [1-20].The aim of this study was investigat the insight of apoptosis and bcl-2, p53 and C-myc protein expression in the development of gastric cancer .展开更多
目的探讨柠檬酸盐和EDTA缓冲液对弥漫性大B细胞淋巴瘤(diffuse large B-cell lymphomas,DLBCL)中Ki-67和bcl-2抗原修复的比较。方法运用高压锅热抗原修复法,选择柠檬酸盐和EDTA两种缓冲液同时进行抗原修复,比较了78例弥漫性大B细胞淋巴...目的探讨柠檬酸盐和EDTA缓冲液对弥漫性大B细胞淋巴瘤(diffuse large B-cell lymphomas,DLBCL)中Ki-67和bcl-2抗原修复的比较。方法运用高压锅热抗原修复法,选择柠檬酸盐和EDTA两种缓冲液同时进行抗原修复,比较了78例弥漫性大B细胞淋巴瘤Ki-67和43例DLBCL bcl-2的免疫组化染色应用效果。结果免疫组化染色采用EDTA与柠檬酸盐缓冲液相比,Ki-67指数78例中有76例明显提高,两者差异有统计学意义(P<0·01);bcl-2染色43例中有13例表达明显提高,两者差异有统计学意义(P<0·01)。结论在实际免疫组化染色中,EDTA缓冲液较柠檬酸盐缓冲液能极大地提高弥漫性大B细胞淋巴瘤的Ki-67和bcl-2抗原的表达。展开更多
Objective： To elucidate the effects of amlodipine on the proliferation and apoptosis of human breast carcinoma MDA-MB-231 cells. Methods： Light microscopy was used to determine the effects of amlodipine on cell morp...Objective： To elucidate the effects of amlodipine on the proliferation and apoptosis of human breast carcinoma MDA-MB-231 cells. Methods： Light microscopy was used to determine the effects of amlodipine on cell morphology; Flow cytometry was used to quantitate cells undergoing apoptosis; the expression of a cell cycle-related protein, proliferating cell nuclear antigen （PCNA） and an antiapoptosis protein, Bcl-2 were assessed by immunocytochemistry. Results： Amlodipine concentration of 8.25umol/L （1/2 of ICs0） affected the morphology, decreased the expression of PCNA and Bcl-2 and induced apoptosis of human breast carcinoma MDA-MB-231 cells. Conclusion： The effect of amlodipine on the antiproliferation of human breast carcinoma MDA-MB-231 cells is related to inducement of apoptosis, and the decrease of the expression of Bcl-2 and PCNA may be the possible mechanism for proliferation inhibitory and inducement of apoptosis.展开更多
基金Supported by the Medical Research Foundation of Guangdong Province,No.1997423
文摘INTRODUCTIONIn China ,the incidence and mortality of gastric cancer rank the second among all cancers. Recent development of cancer [1-20].The aim of this study was investigat the insight of apoptosis and bcl-2, p53 and C-myc protein expression in the development of gastric cancer .
文摘目的探讨柠檬酸盐和EDTA缓冲液对弥漫性大B细胞淋巴瘤(diffuse large B-cell lymphomas,DLBCL)中Ki-67和bcl-2抗原修复的比较。方法运用高压锅热抗原修复法,选择柠檬酸盐和EDTA两种缓冲液同时进行抗原修复,比较了78例弥漫性大B细胞淋巴瘤Ki-67和43例DLBCL bcl-2的免疫组化染色应用效果。结果免疫组化染色采用EDTA与柠檬酸盐缓冲液相比,Ki-67指数78例中有76例明显提高,两者差异有统计学意义(P<0·01);bcl-2染色43例中有13例表达明显提高,两者差异有统计学意义(P<0·01)。结论在实际免疫组化染色中,EDTA缓冲液较柠檬酸盐缓冲液能极大地提高弥漫性大B细胞淋巴瘤的Ki-67和bcl-2抗原的表达。
文摘Objective： To elucidate the effects of amlodipine on the proliferation and apoptosis of human breast carcinoma MDA-MB-231 cells. Methods： Light microscopy was used to determine the effects of amlodipine on cell morphology; Flow cytometry was used to quantitate cells undergoing apoptosis; the expression of a cell cycle-related protein, proliferating cell nuclear antigen （PCNA） and an antiapoptosis protein, Bcl-2 were assessed by immunocytochemistry. Results： Amlodipine concentration of 8.25umol/L （1/2 of ICs0） affected the morphology, decreased the expression of PCNA and Bcl-2 and induced apoptosis of human breast carcinoma MDA-MB-231 cells. Conclusion： The effect of amlodipine on the antiproliferation of human breast carcinoma MDA-MB-231 cells is related to inducement of apoptosis, and the decrease of the expression of Bcl-2 and PCNA may be the possible mechanism for proliferation inhibitory and inducement of apoptosis.
