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土槿乙酸诱导前列腺癌DU-145细胞周期阻滞的机制研究
引用本文:买霞,徐忠伟,陈小义,曹波,徐瑞成. 土槿乙酸诱导前列腺癌DU-145细胞周期阻滞的机制研究[J]. 中国中药杂志, 2012, 37(22): 3467-3471
作者姓名:买霞  徐忠伟  陈小义  曹波  徐瑞成
作者单位:1. 中国人民武装警察部队后勤学院细胞生物学教研室,天津300162;天津市职业和环境危害生物标志物重点实验室,天津300162
2. 中国人民武装警察部队后勤学院细胞生物学教研室,天津,300162
3. 天津市职业和环境危害生物标志物重点实验室,天津300162;中国人民武装警察部队后勤学院生药学教研室,天津300162
基金项目:国家自然科学基金项目(30901985)
摘    要:目的:探讨土槿乙酸(pseudolaric acid B,PLAB)对人前列腺癌细胞株DU-145细胞增殖和细胞周期的影响.方法:MTT法检测PLAB对细胞生长抑制作用;Hoechst 33342荧光染色分析细胞死亡特征;流式细胞术检测细胞周期;Real-time PCR和Western blot检测周期相关基因cyclin B1,CDK1和cyclin D1的表达变化.结果:PLAB明显抑制DU-145细胞生长,且抑制作用呈浓度-作用时间依赖性(P<0.05),其24,48,72 h的IC50分别为4.53,2.39,2.08 μmol·L-1.5μmol·L-1PLAB处理细胞24 h,细胞出现核染色质凝集、凋亡小体等典型凋亡特征,随着PLAB浓度升高,G2/M期细胞比例明显增大并表现出时间依赖性(P<0.05),同时伴有cyclin B1和CDK1呈高表达状态(P<0.05),cyclin D1呈低表达状态(P<0.05).结论:PLAB可抑制DU-145细胞生长,引起细胞G2/M期阻滞,伴随cyclin B1和CDK1呈高表达状态,可能与其调控周期相关蛋白降解有关.

关 键 词:土槿乙酸  人前列腺癌细胞  细胞周期  cyclin B1  CDK1  cyclin D1
收稿时间:2012-01-04

Cycle arrest of prostate carcinoma DU-145 cells induced by pseudolaric acid B
MAI Xi,XU Zhong-wei,CHEN Xiao-yi,CAO Bo and XU Rui-cheng. Cycle arrest of prostate carcinoma DU-145 cells induced by pseudolaric acid B[J]. China Journal of Chinese Materia Medica, 2012, 37(22): 3467-3471
Authors:MAI Xi  XU Zhong-wei  CHEN Xiao-yi  CAO Bo  XU Rui-cheng
Affiliation:Department of Cell Biology, Logistics University of Chinese People's Armed Police Forces, Tianjin 300162, China;Tianjin Key Laboratory for Biomarkers of Occupational and Environmental Hazard, Tianjin 300162, China;Department of Cell Biology, Logistics University of Chinese People's Armed Police Forces, Tianjin 300162, China;Department of Cell Biology, Logistics University of Chinese People's Armed Police Forces, Tianjin 300162, China;Tianjin Key Laboratory for Biomarkers of Occupational and Environmental Hazard, Tianjin 300162, China;Department of Pharmacy, Logistics University of Chinese People's Armed Police Forces, Tianjin 300162, China;Department of Cell Biology, Logistics University of Chinese People's Armed Police Forces, Tianjin 300162, China;Tianjin Key Laboratory for Biomarkers of Occupational and Environmental Hazard, Tianjin 300162, China
Abstract:
Keywords:pseudolaric acid B  human prostate carcinoma cell  cell cycle  cyclin B1  CDK1  cyclin D1
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