天然产物研究与开发 ›› 2021, Vol. 33 ›› Issue (7): 1086-1095.doi: 10.16333/j.1001-6880.2021.7.002

• 研究论文 • 上一篇    下一篇

黑果腺肋花楸花色苷通过Nrf2机制对Aβ1-42诱导SH-SY5Y细胞产生氧化应激及细胞凋亡的保护作用

孟令帅1,曹森1,彭琳1,马立志1,孟宪军2,周笑犁1*   

  1. 1贵阳学院食品与制药工程学院,贵阳550005;2沈阳农业大学食品学院,沈阳110866
  • 出版日期:2021-07-28 发布日期:2021-07-29
  • 基金资助:
    贵州市财政支持贵阳学院学科建设与研究生教育项目(2021-XK15);贵州省普通高等学校功能食品重点实验室建设项目(黔教合KY字[2016]007)

Aronia melanocarpa anthocyanins protect SH-SY5Y cells against Aβ1-42 induced oxidative stress and apoptosis through a Nrf2 mechanism

MENG Ling-shuai1,CAO Sen1,PENG Lin1,MA Li-zhi1,MENG Xian-jun2,ZHOU Xiao-li1*   

  1. 1School of Food and Pharmaceutical Engineering,Guiyang College,Guiyang 550000,China; 2College of Food Science,Shenyang Agricultural University,Shenyang 110866,China

  • Online:2021-07-28 Published:2021-07-29

摘要: 为了研究黑果腺肋花楸花色苷对Aβ1-42诱导的SH-SY5Y细胞产生氧化应激和细胞凋亡的影响。采用MTT比色法测定细胞活力,分别用ROS、H2O2、SOD检测试剂盒测定活性氧(ROS),过氧化氢(H2O2),超氧化物歧化酶(SOD)等氧化应激相关指标。采用Annexin-V-PI/FITC凋亡检测试剂盒检测细胞凋亡。采用RT-PCR,蛋白质印迹法分析抗氧化酶相关基因核转录相关因子(Nrf2)、血红素氧化酶-1(HO-1)、醌氧化还原酶(NQO1)、凋亡相关基因(Bcl-2、Bax)的转录和蛋白表达。结果表明花色苷预处理显著抑制Aβ1-42诱导的细胞内ROS、H2O2的增加,并通过上调Nrf2、HO-1、NQO-1表达来增加SOD表达。通过下调Bax,上调Bcl-2显著抑制细胞凋亡。从而得出高纯度的黑果腺肋花楸花色苷可以通过Nrf2机制保护SH-SY5Y细胞免受Aβ1-42诱导的氧化应激和细胞凋亡。


关键词: 黑果腺肋花楸, 花色苷, SH-SY5Y细胞, 氧化应激, 细胞凋亡

Abstract:

We investigated the cytoprotective effects of anthocyanins,including cyanidin-3-O-(galactoside,glucoside,arabinoside,xyloside),from Aronia melanocarpa against oxidative stress and apoptosis induced by Aβ1-42.The MTT assay was conducted by MTT colorimetric assay and cell group was done,oxidative stress related indicators,including reactive oxygen species (ROS),hydrogen peroxide (H2O2),superoxide dismutase (SOD),were measured using ROS,H2O22,SOD detection kit,respectively,apoptosis was detected by Annexin-V-PI/FITC apoptosis detection kit.Besides,the gene transcription and protein expression of antioxidase-related gene nuclear factor erythroid (Nrf2),heme oxygenase-1 (HO-1),quinone oxidoreductase (NQO1) and apoptosis-related genes (Bcl-2,Bax) were analyzed by RT-PCR and Western blot.These results showed that anthocyanins pretreatment significantly inhibited Aβ1-42-induced increase in intracellular ROS,H2O2,and increased the SOD expression through upregulating the Nrf2,HO-1,NQO-1 expression.Apoptosis was significantly inhibited by anthocyanins via down-regulation of Bax and up-regulation of Bcl-2.It can be concluded that high-purity Aronia melanocarpa anthocyanins could protect SH-SY5Y cell from Aβ1-42-induced oxidative stress and apoptosis through a Nrf2 mechanism.

Key words: Aronia melanocarpa, anthocyanins, SH-SY5Y cell, oxidative stress, apoptosis

中图分类号:  Q954.6 R361