Gypenosides protect retinal pigment epithelium cells from oxidative stress

被引:41
作者
Alhasani, Reem Hasaballah [1 ]
Biswas, Lincoln [1 ]
Tohari, Ali Mohammad [1 ]
Zhou, Xinzhi [1 ]
Reilly, James [1 ]
He, Jian-Feng [2 ]
Shu, Xinhua [1 ]
机构
[1] Glasgow Caledonian Univ, Dept Life Sci, Glasgow G4 0BA, Lanark, Scotland
[2] Guangxi Med Univ, Affiliated Hosp 1, Dept Ophthalmol, Nanning 530021, Peoples R China
关键词
Gypenosides; Oxidative stress; Inflammation; Cell death; ARPE-19; ISCHEMIA-REPERFUSION INJURY; FATTY LIVER-DISEASE; NF-KAPPA-B; GYNOSTEMMA-PENTAPHYLLUM; DEGENERATION; ACTIVATION; INHIBITION; APOPTOSIS; PATHWAY; ACID;
D O I
10.1016/j.fct.2017.12.037
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Oxidative stress plays a critical role in the pathogenesis of retinal degeneration. Gypenosides are the major functional components isolated from Gynostemma pentaphyllwn. They have been shown to protect against oxidative stress and inflammation and have also demonstrated a protective effect on experimental optic neuritis. In order to determine the protective properties of gypenosides against oxidative stress in human retinal pigment epithelium (RPE) cells, ARPE-19 cells were treated with H2O2 or H2O2 plus gypenosides for 24 h. ARPE-19 cells co-treated with gypenosides had significantly increased cell viability and decreased cell death rate when compared to cells treated with H2O2 alone. The level of GSH, the activities of SOD and catalase, and the expression of NRF2 and antioxidant genes were notably decreased, while there were marked increases in ROS, MDA and pro inflammatory cytokines in ARPE-19 cells exposed to H2O2; co-treatment with gypenosides significantly counteract these changes. Our study suggests that gypenosides protect RPE cells from oxidative damage and offer therapeutic potential for the treatment of retinal degeneration.
引用
收藏
页码:76 / 85
页数:10
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