期刊
EXPERIMENTAL AND THERAPEUTIC MEDICINE
卷 22, 期 5, 页码 -出版社
SPANDIDOS PUBL LTD
DOI: 10.3892/etm.2021.10730
关键词
coenzyme Q10; excitotoxicity; glutamate; mitochondrial biogenesis
资金
- National Natural Science Foundation of China [8156050251]
The study showed that Coenzyme Q10 may protect against glutamate-induced excitotoxicity by stimulating mitochondrial biogenesis, as indicated by increased expression of related proteins and enhanced mitochondrial generation.
Glutamate-induced excitotoxicity is a well-recognized cause of neuronal cell death. Nutritional supplementation with Coenzyme Q10 (CoQ10) has been previously demonstrated to serve neuro-protective effects against glutamate-induced excitotoxicity. The aim of the present study was to determine whether the protective effect of CoQ10 against glutamate toxicity could be attributed to stimulating mitochondrial biogenesis. Mouse hippocampal neuronal HT22 cells were incubated with glutamate with or without ubisol Q10. The results revealed that glutamate significantly decreased levels of mitochondrial biogenesis related proteins, including peroxisome proliferator-activated receptor gamma coactivator (PGC)-1 alpha and nuclear respiratory factor (NRF)2. Additionally, glutamate reduced mitochondrial biogenesis, as determined using a mitochondrial biogenesis kit. Pretreatment with CoQ10 prevented decreases in phosphorylated (p)-Akt, p-cAMP response element-binding protein, PGC-1 alpha, NRF2 and mitochondrial transcription factor A, increasing mitochondrial biogenesis. Taken together, the results described a novel mechanism of CoQ10-induced neuroprotection and indicated a central role for mitochondrial biogenesis in protecting against glutamate-induced excitotoxicity.
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