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首页> 外文期刊>Neuron >Microbiota Controls the Homeostasis of Glial Cells in the Gut Lamina Propria
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Microbiota Controls the Homeostasis of Glial Cells in the Gut Lamina Propria

机译:微生物群控制肠道固有层中胶质细胞的稳态

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The intrinsic neural networks of the gastrointestinal tract are derived from dedicated neural crest progenitors that colonize the gut during embryogenesis and give rise to enteric neurons and glia. Here, we study how an essential subpopulation of enteric glial cells (EGCs) residing within the intestinal mucosa is integrated into the dynamic microenvironment of the alimentary tract. We find that under normal conditions colonization of the lamina propria by glial cells commences during early postnatal stages but reaches steady-state levels after weaning. By employing genetic lineage tracing, we provide evidence that in adult mice the network of mucosal EGCs is continuously renewed by incoming glial cells originating in the plexi of the gut wall. Finally, we demonstrate that both the initial colonization and homeostasis of glial cells in the intestinal mucosa are regulated by the indigenous gut microbiota.
机译:胃肠道的内在神经网络源自专用的神经rest祖细胞,这些祖细胞在胚胎发生过程中定居于肠道,并产生肠神经元和神经胶质。在这里,我们研究了肠道粘膜内肠神经胶质细胞(EGCs)的基本亚群如何整合到消化道的动态微环境中。我们发现,在正常情况下,由胶质细胞在固有层中定植是在产后早期开始的,但在断奶后达到稳态水平。通过采用遗传谱系追踪,我们提供了证据,在成年小鼠中,粘膜EGC的网络被源自肠壁丛的传入神经胶质细胞不断更新。最后,我们证明肠道黏膜中神经胶质细胞的最初定植和体内平衡都受到本地肠道菌群的调节。

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