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β-淀粉样蛋白诱导神经退行性变条件下 MARK ERK1/2 和 p38 在神经干细胞和神经胶质细胞功能调节中的作用。

The Role of MARK ERK1/2 and p38 in Regulation of Functions of Neural Stem Cells and Neuroglia under Conditions of β-Amyloid-Induced Neurodegeneration.

机构信息

E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia.

出版信息

Bull Exp Biol Med. 2022 Aug;173(4):424-428. doi: 10.1007/s10517-022-05561-9. Epub 2022 Sep 5.

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.

摘要

采用β-淀粉样蛋白诱导神经退行性变的体外模型研究了 ERK1/2 和 p38 在神经干细胞生长潜能的实现和神经胶质细胞分泌神经营养生长因子中的作用。结果表明,淀粉样β片段 25-35 显著抑制神经干细胞的细胞周期进程,同时刺激其分化,并减少神经胶质细胞生长因子的产生。揭示了 ERK1/2 和 p38 与神经干细胞增殖活性和神经胶质细胞分泌活性的抑制作用。ERK1/2 和 p38 抑制剂在模拟β-淀粉样蛋白诱导的神经退行性变条件下增加了神经组织祖细胞的增殖,降低了其特化程度,并刺激了神经胶质细胞生长因子的产生。

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