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首页> 外文期刊>Cell biology international. >Stromal cell derived factor-1 acutely promotes neural progenitor cell proliferation in vitro by a mechanism involving the ERK1/2 and PI-3K signal pathways.
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Stromal cell derived factor-1 acutely promotes neural progenitor cell proliferation in vitro by a mechanism involving the ERK1/2 and PI-3K signal pathways.

机译:基质细胞衍生因子1通过涉及ERK1 / 2和PI-3K信号通路的机制在体外急性促进神经祖细胞增殖。

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摘要

Stromal cell derived factor-1 (SDF-1), a member of the chemotactic cytokine family, has attracted attention in recent years. It participates in diverse processes such as the regulation of neuronal migration and activation of CD4+ T cells; it is also a co-receptor for human immunodeficiency virus-1 (HIV-1). Here, we show that the proliferation of neural progenitor cells dissociated from rat cortex and cultured in vitro with basic fibroblast growth factor (bFGF) is stimulated by SDF-1. PD98059 and wortmannin, which are, respectively, specific inhibitors of the extracellular regulated kinase1/2 (ERK1/2) and phosphatidylinositol-3 kinase (PI-3K) signal pathways, markedly attenuate this stimulation of proliferation. These findings indicate that SDF-1 acutely promotes the proliferation of NPCs in vitro involving the ERK1/2 and PI-3 kinase pathways, suggesting that it plays a basic role in the development of neural progenitors.
机译:趋化细胞因子家族的成员基质细胞衍生因子-1(SDF-1)近年来引起了人们的关注。它参与多种过程,例如神经元迁移的调节和CD4 + T细胞的激活。它也是人类免疫缺陷病毒1(HIV-1)的共同受体。在这里,我们显示从SDF-1刺激从大鼠皮层分离并与碱性成纤维细胞生长因子(bFGF)体外培养的神经祖细胞的增殖。 PD98059和渥曼青霉素分别是细胞外调节激酶1/2(ERK1 / 2)和磷脂酰肌醇-3激酶(PI-3K)信号通路的特异性抑制剂,可显着减弱这种对增殖的刺激。这些发现表明,SDF-1可以在体外迅速促进涉及ERK1 / 2和PI-3激酶途径的NPC的增殖,表明它在神经祖细胞的发育中起着基本作用。

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