首页> 外文期刊>Nature immunology >Notch signaling is necessary for adult, but not fetal, development of RORgammat(+) innate lymphoid cells.
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Notch signaling is necessary for adult, but not fetal, development of RORgammat(+) innate lymphoid cells.

机译:Notch信号对于RORgammat(+)先天淋巴样细胞的成人而非胎儿发育是必需的。

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The transcription factor RORgammat is required for the development of several innate lymphoid populations, such as lymphoid tissue-inducer cells (LTi cells) and cells that secrete interleukin 17 (IL-17) or IL-22. The progenitor cells as well as the developmental stages that lead to the emergence of RORgammat(+) innate lymphoid cells (ILCs) remain undefined. Here we identify the chemokine receptor CXCR6 as an additional marker of the development of ILCs and show that common lymphoid progenitors lost B cell and T cell potential as they successively acquired expression of the integrin alpha(4)beta(7) and CXCR6. Whereas fetal RORgammat(+) cells matured in the fetal liver environment, adult bone marrow-derived RORgammat(+) ILCs matured outside the bone marrow, in a Notch2-dependent manner. Therefore, fetal and adult environments influence the differentiation of RORgammat(+) cells differently.
机译:转录因子RORgammat是一些先天性淋巴样群体发展所必需的,例如淋巴组织诱导细胞(LTi细胞)和分泌白介素17(IL-17)或IL-22的细胞。导致RORgammat(+)先天淋巴样细胞(ILCs)出现的祖细胞以及发育阶段仍然不确定。在这里,我们确定趋化因子受体CXCR6是ILC发展的附加标志,并显示常见的淋巴样祖细胞在连续获取整联蛋白alpha(4)beta(7)和CXCR6的表达后丧失了B细胞和T细胞的潜能。胎儿RORgammat(+)细胞在胎儿肝脏环境中成熟,而成人骨髓来源的RORgammat(+)ILC以Notch2依赖性方式在骨髓外部成熟。因此,胎儿和成人环境对RORgammat(+)细胞的分化产生不同的影响。

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