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• W2109163960 startingPage "14591" @default.
• W2109163960 abstract "Oxidative stress is a well-established event in the pathology of several neurobiological diseases. Sirt3 is a nicotinamide adenine nucleotide (NAD+)-dependent protein deacetylase that regulates mitochondrial function and metabolism in response to caloric restriction and stress. This study aims to investigate the role of Sirt3 in H2O2 induced oxidative neuronal injury in primary cultured rat cortical neurons. We found that H2O2 treatment significantly increased the expression of Sirt3 in a time-dependent manner at both mRNA and protein levels. Knockdown of Sirt3 with a specific small interfering RNA (siRNA) exacerbated H2O2-induced neuronal injury, whereas overexpression of Sirt3 by lentivirus transfection inhibited H2O2-induced neuronal damage reduced the generation of reactive oxygen species (ROS), and increased the activities of endogenous antioxidant enzymes. In addition, the intra-mitochondrial Ca2+ overload, but not cytosolic Ca2+ increase after H2O2 treatment, was strongly attenuated after Sirt3 overexpression. Overexpression of Sirt3 also increased the content of mitochondrial DNA (mtDNA) and the expression of mitochondrial biogenesis related transcription factors. All these results suggest that Sirt3 acts as a prosurvival factor playing an essential role to protect cortical neurons under H2O2 induced oxidative stress, possibly through regulating mitochondrial Ca2+ homeostasis and mitochondrial biogenesis." @default.
• W2109163960 created "2016-06-24" @default.
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• W2109163960 date "2014-08-21" @default.
• W2109163960 modified "2023-10-16" @default.
• W2109163960 title "Sirt3 Protects Cortical Neurons against Oxidative Stress via Regulating Mitochondrial Ca2+ and Mitochondrial Biogenesis" @default.
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• W2109163960 doi "https://doi.org/10.3390/ijms150814591" @default.
• W2109163960 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4159870" @default.
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• W2109163960 hasPublicationYear "2014" @default.
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