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Erythropoietin promotes the differentiation of fetal neural stem cells into glial cells via the erythropoietin receptor-β common receptor/Syne-1/H3K9me3 pathway.


ABSTRACT: To investigate the effect of erythropoietin (EPO) on the differentiation of neural stem cells (NSCs)/neural progenitors (NPs) in the treatment of hypoxic-ischemic injury and its potential mechanisms. Fetal NSCs/NPs were treated with EPO after oxygen and glucose deprivation/reoxygenation (OGD/R). Cell viability, proliferation, and differentiation of NSCs/NPs were detected by CellTiter-Glo, Edu assay, flow cytometry, and quantitative real-time PCR (qPCR). Immunofluorescence staining, co-immunoprecipitation (Co-IP), and western blotting were used to test the existence of EPO receptor/β common receptor (EPOR/βCR) heterodimer on NSCs/NPs and the possible pathway. EPO treatment at different time points increased cell viability without affecting proliferation. EPO treatment immediately after OGD/R promoted oligodendrocyte and astrocyte differentiation, while decreasing neuronal differentiation of NSCs/NPs. EPOR/βCR heterodimer existed on the cell surface of the fetal cortical NSCs/NPs, EPO treatment significantly increased the mRNA expression of βCR and elevated the correlation between EPOR and βCR levels. In addition, mass spectrometry analysis identified Syne-1 as a downstream signaling molecule of the EPOR/βCR heterodimer. Immunofluorescence staining and western blotting indicated that the βCR/Syne-1/H3K9me3 pathway was possibly involved in the differentiation of fetal neural stem cells into the glial cell effect of EPO. EPO treatment immediately after OGD/R could not facilitate fetal NSCs/NPs neurogenesis but promoted the formation of the EPOR/βCR heterodimer on fetal NSCs/NPs, which mediates its function in glial differentiation.

SUBMITTER: Yang ZH 

PROVIDER: S-EPMC9344084 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature

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Erythropoietin promotes the differentiation of fetal neural stem cells into glial cells via the erythropoietin receptor-β common receptor/Syne-1/H3K9me3 pathway.

Yang Zhen-Hong ZH   Zhang Si-Jia SJ   Zhao Hai-Ping HP   Li Fang-Fang FF   Tao Zhen Z   Luo Yu-Min YM   Wang Rong-Liang RL  

CNS neuroscience & therapeutics 20220617 9


<h4>Aims</h4>To investigate the effect of erythropoietin (EPO) on the differentiation of neural stem cells (NSCs)/neural progenitors (NPs) in the treatment of hypoxic-ischemic injury and its potential mechanisms.<h4>Methods</h4>Fetal NSCs/NPs were treated with EPO after oxygen and glucose deprivation/reoxygenation (OGD/R). Cell viability, proliferation, and differentiation of NSCs/NPs were detected by CellTiter-Glo, Edu assay, flow cytometry, and quantitative real-time PCR (qPCR). Immunofluoresc  ...[more]

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