Abstract
The role of ERK1/2 and p38 in the realization of the growth potential of neural stem cells and secretion of neurotrophic growth factors by glial cells was studied using in vitro model of β-amyloid-induced neurodegeneration. It was shown that amyloid-β fragment 25-35 significantly inhibits the cell cycle progression of neural stem cells against the background of stimulation of their differentiation and reduced production of growth factors by neuroglia. The inhibitory role of ERK1/2 and p38 in relation to the proliferative activity of neural stem cells and the secretory activity of glial elements was revealed. ERK1/2 and p38 inhibitors increased proliferation of progenitor cells of the nervous tissue and reduced the intensity of their specialization, as well as stimulated production of growth factors by neuroglial cells under conditions of simulated β-amyloid-induced neurodegeneration.
Key Words: Alzheimer’s disease, neural stem cells, neuroglia, intracellular signal transduction, mitogen-activated protein kinases
Footnotes
Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 173, No. 4, pp. 431-435, April, 2022
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