The role of NF-κВ in the realization of the growth potential of neural progenitor cells from the subventricular area of cerebral hemispheres and secretion of neurotrophins by glial elements was studied under conditions of in vitro and in vivo modeled ethanol-induced neurodegeneration. It was found that this transcription factor does not participate in the regulation of mitotic activity of neural stem cells and neuronal-committed progenitors under optimal conditions and under the influence of ethanol in vitro. At the same time, NF-κВ suppresses differentiation/maturation of neural progenitor cells. Long-term peroral administration of ethanol to mice was accompanied by the inhibitory influence of NF-κВ on proliferation of progenitor cells. Blockade of NF-κВ in neural stem cells and committed neuronal precursors in animals with neurodegeneration induced cell cycle progression in these elements. The involvement of NF-κВ in the secretory function of astrocytes and oligodendrogliocytes was established. Inactivation of the nuclear transcription factor reduced the production of neurotrophins, in particular, in the case of ethanol exposure. At the same time, no changes in the function of microglia were noted.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 169, No. 6, pp. 700-705, June, 2020
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Zyuz’kov, G.N., Miroshnichenko, L.A., Polyakova, T.Y. et al. The Role of NF-κВ in the Realization of Functions of Various Types of Regeneration-Competent Cells of the Nervous Tissue in Ethanol-Induced Neurodegeneration. Bull Exp Biol Med 169, 759–764 (2020). https://doi.org/10.1007/s10517-020-04973-9
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DOI: https://doi.org/10.1007/s10517-020-04973-9