Wheat alkylresorcinols protect human retinal pigment epithelial cells against H2O2-induced oxidative damage through Akt-dependent Nrf2/HO-1 signaling

被引:3
|
作者
Wang, Ziyuan [1 ]
Hao, Yiming [1 ]
Wang, Yu [1 ]
Liu, Jie [1 ]
Yuan, Xiaoping [2 ]
Sun, Baoguo [1 ]
Wang, Jing [1 ]
机构
[1] BTBU, China Canada Joint Lab Food Nutr & Hlth Beijing, Beijing 100048, Peoples R China
[2] China Grain Reserves Corp, Dept Sci & Technol, Beijing 100039, Peoples R China
关键词
CHOLESTEROL EXCRETION; VITAMIN-A; ACTIVATION; STRESS; NRF2;
D O I
10.1039/c8fo02564a
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The protective effect of wheat alkylresorcinols (ARs) on human retinal pigment epithelium cells (ARPE-19) against oxidative stress and the possible underlying mechanism were investigated in this study. The results showed that ARs significantly inhibited 300 M H2O2-induced ARPE-19 cell damage and reactive oxygen species (ROS) generation by 19% and 32%, respectively. Moreover, ARs treatment increased NF-E2-related factor 2 (Nrf2) signaling activation, which was evidenced by increased transcription of anti-oxidant responsive genes GCL, NQO1 and HO-1. Knockdown of Nrf2 through targeted siRNA alleviated ARs-mediated HO-1 transcription, and almost abolished ARs-mediated cytoprotection against H2O2 induced cell damage. Further studies showed that the protective effect of ARs was dependent on Akt activation. Taken together, these results demonstrated that ARs could protect ARPE-19 cells from oxidative stress induced cell damage possibly through Akt dependent Nrf2/HO-1 signaling.
引用
收藏
页码:2797 / 2804
页数:8
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