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Article Publish Status: FREE
Abstract Title:

Cyanidin suppresses amyloid beta-induced neurotoxicity by inhibiting reactive oxygen species-mediated DNA damage and apoptosis in PC12 cells.

Abstract Source:

Neural Regen Res. 2016 May ;11(5):795-800. PMID: 27335564

Abstract Author(s):

Yi Wang, Xiao-Ting Fu, Da-Wei Li, Kun Wang, Xin-Zhi Wang, Yuan Li, Bao-Liang Sun, Xiao-Yi Yang, Zun-Cheng Zheng, Nam Chun Cho

Article Affiliation:

Yi Wang

Abstract:

Amyloid beta (Aβ)-induced oxidative stress is a major pathologic hallmark of Alzheimer's disease. Cyanidin, a natural flavonoid compound, is neuroprotective against oxidative damage-mediated degeneration. However, its molecular mechanism remains unclear. Here, we investigated the effects of cyanidin pretreatmentagainst Aβ-induced neurotoxicity in PC12 cells, and explored the underlying mechanisms. Cyanidin pretreatment significantly attenuated Aβ-induced cell mortality and morphological changes in PC12 cells. Mechanistically, cyanidin effectively blocked apoptosis induced by Aβ, by restoring the mitochondrial membrane potential via upregulation of Bcl-2 protein expression. Moreover, cyanidin markedly protected PC12 cells from Aβ-induced DNA damage by blocking reactive oxide species and superoxide accumulation. These results provide evidence that cyanidin suppresses Aβ-induced cytotoxicity, by preventing oxidative damage mediated by reactive oxide species, which in turn inhibits mitochondrial apoptosis. Our study demonstrates the therapeutic potential of cyanidin in the prevention of oxidative stress-mediated Aβ neurotoxicity.

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Sayer Ji
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