NAD(+) treatment prevents rotenone-induced apoptosis and necrosis of differentiated PC12 cells

Neuroscience Letters
Yunyi HongWeihai Ying

Abstract

Nicotinamide adenine dinucleotide (NAD(+)) plays critical roles in not only energy metabolism and mitochondrial functions, but also calcium homeostasis and immunological functions. It has been reported that NAD(+) administration can reduce ischemic brain damage. However, the mechanisms underlying the protective effects remain unclear. Because mitochondrial impairments play a key role in the cell death in cerebral ischemia, in this study we tested our hypothesis that NAD(+) can decrease mitochondrial damage-induced cell death using differentiated PC12 cells as a cellular model. We found that NAD(+) can decrease both early-stage and late-stage apoptosis, as well as necrosis of rotenone-treated PC12 cells, as assessed by FACS-based Annexin V/AAD assay. We also found that NAD(+) treatment can restore the intracellular NAD(+) levels of the rotenone-treated cells. Moreover, NAD(+) treatment can prevent rotenone-induced mitochondria depolarization. In summary, our study has provided first direct evidence that NAD(+) treatment can prevent rotenone-induced apoptosis and necrosis. Our study has also indicated that NAD(+) treatment can prevent mitochondrial damage-induced cell death, which may at least partially result from its protective...Continue Reading

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Citations

Nov 12, 2014·International Journal of Molecular Sciences·Xiaowan WangShinghua Ding
Dec 30, 2014·Molecular Brain·Emilie ImbeaultDenis Gris
Jan 30, 2015·Neurotoxicity Research·Juan Segura-Aguilar, Richard M Kostrzewa
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Jun 30, 2019·Toxicology and Applied Pharmacology·Ru ZengShaoyu Zhou
Mar 27, 2021·Pesticide Biochemistry and Physiology·Zhipeng SunGuohua Zhong

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