首都医科大学学报 ›› 2005, Vol. 26 ›› Issue (4): 428-431.

• 专题报道 • 上一篇    下一篇

Tenuigenin对转染APP695cDNA的SH-SY5Y细胞β-淀粉样蛋白生成的抑制作用及机制

贾竑晓1,3, 马辛1, 姜勇2, 阮燕3, 张继志1, 涂鹏飞2, 张岱3   

  1. 1. 首都医科大学附属北京安定医院, 北京大学精神卫生研究所;2. 首都医科大学附属北京安定医院;3. 北京大学药学院
  • 收稿日期:2005-06-30 修回日期:1900-01-01 出版日期:2005-08-24 发布日期:2005-08-24
  • 通讯作者: 张岱

Inhibitory Effect of Tenuigenin on Beta Amyloid Protein Production of SH-SY5Y Cells Transfected with APP695 cDNA

Jia Hongxiao1,3, Ma Xin1, Jiang Yong2, Ruan Yan3, Zhang Jizhi1, Tu Pengfei2, Zhang Dai3   

  1. 1. Beijing Anding Hospital, Capital University of Medical Sciences;2. School of Pharmaceutical SciencesPeking University;3. Mental Health Institute, Peking University
  • Received:2005-06-30 Revised:1900-01-01 Online:2005-08-24 Published:2005-08-24

关键词: 阿尔茨海默病, &beta, -淀粉样蛋白, C99, 免疫沉淀Western印迹法

Abstract:

Objective To investigate the inhibitory effect of tenuigenin on beta amyloid protein(Aβ) which caused Alzheimer's Disease(AD).Methods Western blotting was used to test the Aβ and C99 levels of cells; MTT and LDH was used to test the neurotoxicity of tenuigenin to the cells.Results Tenuigenin can inhibit the production of beta amyloid protein of SH-SY5Y APP695 cells, didn't have neurotoxicity to cells; it can decrease Aβ and C99 levels of SH-SY5Y APP695 cells, but it didn't decrease Aβ and C99 levels of SH-SY5Y SPA4CT cells.Conclusion Tenuigenin can inhibit the production of beta amyloid protein of SH-SY5Y APP695 cells, it's mechanism may come through affecting the β-secretase proteolytic activities.

Key words: Alzheimer disease(AD), amyloid &beta, -peptides(A&beta, ), C99, Western blotting

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