Transcription factor E2-2 is an essential and specific regulator of plasmacytoid dendritic cell development.

Transcription factor E2-2 is an essential and specific regulator of plasmacytoid dendritic cell development.
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DOI:
10.1016/j.cell.2008.09.016
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发表时间:
2008-10-03
期刊:
影响因子:
64.5
通讯作者:
Reizis, Boris
Reizis, Boris
中科院分区:
生物学1区
文献类型:
--
作者:
Cisse, Babacar;Caton, Michele L.;Lehner, Manfred;Maeda, Takahiro;Scheu, Stefanie;Locksley, Richard;Holmberg, Dan;Zweier, Christiane;den Hollander, Nicolette S.;Kant, Sarina G.;Holter, Wolfgang;Rauch, Anita;Zhuang, Yuan;Reizis, Boris

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浆细胞样树突状细胞(PDC)是一种独特的免疫细胞类型,专门用于响应病毒核酸分泌I型干扰素(IFN)。PDC谱系规范的分子控制一直知之甚少。我们报道了基本螺旋-环-螺旋转录因子(E蛋白)E2-2/Tcf4在小鼠和人PDC中优先表达。小鼠E2-2的组成性或诱导性缺失阻断了PDC的发育,但对其他谱系没有影响,并且消除了IFN对未甲基化DNA的反应。此外,小鼠和人类皮特-霍普金斯综合征患者E2-2单倍性不足与PDC的异常表达谱和IFN反应受损有关。E2-2直接激活了多个富集PDC的基因,包括参与PDC发育的转录因子(SpiB, Irf8)和功能(Irf7)。这些结果确定E2-2是小鼠和人类PDC谱系的特异性转录调节因子,并揭示了E蛋白在先天免疫系统中的关键功能。
Plasmacytoid dendritic cells (PDC) represent a unique immune cell type specialized in type I interferon (IFN) secretion in response to viral nucleic acids. The molecular control of PDC lineage specification has been poorly understood. We report that basic helix-loop-helix transcription factor (E protein) E2-2/Tcf4 is preferentially expressed in murine and human PDC. Constitutive or inducible deletion of murine E2-2 blocked the development of PDC but not of other lineages, and abolished IFN response to unmethylated DNA. Moreover, E2-2 haploinsufficiency in mice and in human Pitt-Hopkins syndrome patients was associated with aberrant expression profile and impaired IFN response of the PDC. E2-2 directly activated multiple PDC-enriched genes, including transcription factors involved in PDC development (SpiB, Irf8) and function (Irf7). These results identify E2-2 as a specific transcriptional regulator of the PDC lineage in mice and humans, and reveal a key function of E proteins in the innate immune system.
E2A蛋白促进淋巴酸化的多能祖细胞的发展。
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发表时间: 2008-08-15
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影响因子: 32.4
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发表时间: 1993-06-01
影响因子: 5.3
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影响因子: 30.5
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