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首页> 外文期刊>Brain research >Granulocyte colony-stimulating factor stimulates neurogenesis via vascular endothelial growth factor with STAT activation.
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Granulocyte colony-stimulating factor stimulates neurogenesis via vascular endothelial growth factor with STAT activation.

机译:粒细胞集落刺激因子通过具有STAT激活作用的血管内皮生长因子刺激神经发生。

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摘要

The adult brain harbors multipotent stem cells, which reside in specialized niches that support self-renewal. Granulocyte colony-stimulating factor (G-CSF) induces bone marrow stem cells proliferation and mobilization from their niche, and activates endothelial cell proliferation, which might help to establish a vascular niche for neural stem cells (NSCs). Here, we show that G-CSF induced receptor-mediated proliferation and differentiation of neural precursors in human NSCs cultures and in adult rat brain in vivo. In human NSCs cultures, G-CSF activated STAT3 and 5, and increased VEGF and its receptor, VEGFR2 (Flk-1) expression, and VEGFR2 tyrosine kinase inhibitor blocked the neurogenesis stimulated by G-CSF. G-CSF also activated endothelial cell proliferation in adult rat brain in vivo. Our results indicate that G-CSF stimulates neurogenesis through reciprocal interaction with VEGF and STAT activation.
机译:成年大脑拥有多能干细胞,这些干细胞位于支持自我更新的专门壁ni中。粒细胞集落刺激因子(G-CSF)诱导骨髓干细胞的增殖和动员,并激活内皮细胞增殖,这可能有助于建立神经干细胞(NSC)的血管生境。在这里,我们显示G-CSF在人NSCs培养物中和成年大鼠体内的神经元诱导受体介导的增殖和分化。在人类NSC培养物中,G-CSF激活STAT3和5,并增加VEGF及其受体,VEGFR2(Flk-1)表达和VEGFR2酪氨酸激酶抑制剂,从而阻断了G-CSF刺激的神经发生。 G-CSF还可以在体内激活成年大鼠大脑中的内皮细胞增殖。我们的结果表明,G-CSF通过与VEGF和STAT激活的相互相互作用来刺激神经发生。

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