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• W4308678853 abstract "Oligodendrocytes are the most iron-rich cells in the brain. Studies have shown that oligodendrocytes are very sensitive to oxidative stress, and iron overload is more likely to cause damage to oligodendrocytes. The purpose of this experiment was to investigate the damaging effect and mechanism of ferric ammonium citrate (FAC) on MO3.13 oligodendrocytes. In FAC treatment group, the intracellular iron concentration and intracellular reactive oxygen species were increased. There were no obvious changes in nucleus and chromatin, but increased mitochondrial membrane density, decreased mitochondrial cristae and mitochondrial length were observed. Glutathione peroxidase 4 (GPX4) expression was decreased, but the ratio of Bcl-2/Bax protein levels and cleaved caspase-3 expression did not change. Moreover, the iron chelator deferoxamine (DFO) and the ferroptosis inhibitor ferrostatin-1(Fer-1) could inhibit the upregulation of GPX4, which indicating that DFO and Fer-1 could inhibit ferroptosis in MO3.13 oligodendrocytes induced by iron overload. Furthermore, the phosphorylation level of p53 was not changed, while the ratio of protein expressions of p-Erk1/2/Erk1/2 were markedly increased. Taken together, our data suggest that iron overload induces ferroptosis but not apoptosis in oligodendrocytes. The mechanism may be related to mitogen-activated protein kinase pathway activation rather than p53 pathway activation." @default.
• W4308678853 created "2022-11-14" @default.
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• W4308678853 date "2022-11-09" @default.
• W4308678853 modified "2023-09-23" @default.
• W4308678853 title "Iron Overload Causes Ferroptosis But Not Apoptosis in MO3.13 Oligodendrocytes" @default.
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• W4308678853 doi "https://doi.org/10.1007/s11064-022-03807-6" @default.
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