天然产物研究与开发 ›› 2017, Vol. 29 ›› Issue (3): 382-386.doi: 10.16333/j.1001-6880.2017.3.003

• 研究论文 • 上一篇    下一篇

ERK1/2信号通路介导大蒜素对β-分泌酶亚基Bace1的调控作用

张浩1*,王玥2,潘海1   

  1. 1 沈阳医学院附属中心医院第二神经外科,沈阳 110024;2辽宁中医药大学基础医学院,沈阳 110847
  • 出版日期:2017-03-31 发布日期:2017-04-06

Regulation Effect of Allicin on Beta Secretase Subunit Bace1 Mediated by ERK1/2 Signaling Pathway

ZHANG Hao1*,WANG Yue2,PAN Hai1   

  1. 1 The second Department of Neurosurgery,the Affiliated Central Hospital of Shenyang Medical College,Shenyang 110024,China; 2 Department of Tissue Culture,Liaoning University of Tradition Chinese Medicine,Shenyang 110847,China
  • Online:2017-03-31 Published:2017-04-06

摘要: 本文应用细胞免疫荧光、Western blot、Real-Time PCR和ELISA等实验方法检测ERK1/2信号通路介导大蒜素对β-分泌酶亚基Bace1的调控作用。结果发现,SH-SY5Y细胞经大蒜素处理后,Bace1表达较对照组降低,而给予大蒜素和ERK1/2通路抑制剂PD98059共同处理后的SH-SY5Y细胞中Bace1表达又明显升高,表明大蒜素可以通过ERK1/2通路下调Bace1的表达;ELISA结果显示,大蒜素处理组SH-SY5Y细胞中Aβ1-40和Aβ1-42的表达减少,而大蒜素和PD98059处理组的SH-SY5Y细胞中Aβ1-40和Aβ1-42的表达较单纯大蒜素处理组有所升高。基于此结果,说明大蒜素可以抑制β-分泌酶的活性,下调Bace1的表达,进而提示大蒜素通过减少Aβ的生成,对神经元起到一定的保护作用。

关键词: 大蒜素, SH-SY5Y, &beta, -分泌酶, Bace1, ERK1/2信号通路

Abstract: In this study,the regulation effect of ERK1/2 signal pathway mediated allicin on beta secretase subunit Bace1 was investigated by immunofluorescence,Western blot,Real-Time PCR and ELISA methods.It was found that the Bace1 expression in SH-SY5Y cells which treated with allicin was lower than control group,but treated with allicin and ERK1/2 pathway inhibitors PD98059,the expression of Bace1 was rose.The results showed that allicin can down-regulate Bace1 expression through ERK1/2 pathway.ELISA results showed that the expression of A beta 1-40 and A beta 1-42 were decreased in SH-SY5Y cells which treated with allicin,while the expressions were increased in SH-SY5Y cells which treated with allicin and PD98059,compared with allicin treatment group.These results prompted that allicin can inhibit the beta secretase activity,downregulate Bace1 expression,and suggested that allicin had protective effect on neurons by decreasing the production of Aβ.

Key words: allicin, SH-SY5Y, beta secretase, Bace1, ERK1/2 signal pathway

中图分类号: 

R741.02