Transcription factor ID2 prevents E proteins from enforcing a naïve T lymphocyte gene program during NK cell development.

Transcription factor ID2 prevents E proteins from enforcing a naïve T lymphocyte gene program during NK cell development.
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DOI:
10.1126/sciimmunol.aao2139
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发表时间:
2018-04-27
期刊:
影响因子:
24.8
通讯作者:
Kee BL
Kee BL
中科院分区:
医学1区
文献类型:
--
作者:
Zook EC;Li ZY;Xu Y;de Pooter RF;Verykokakis M;Beaulieu A;Lasorella A;Maienschein-Cline M;Sun JC;Sigvardsson M;Kee BL

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所有先天性淋巴样细胞(ILC)都需要小螺旋-环-螺旋转录因子ID2,但ID2在这些细胞中的功能还不清楚。在这里,我们发现成熟的自然杀伤(NK)细胞,原型ILC,在缺乏ID2的小鼠中发育,但仍然是前体CD27 + CD11b −细胞,无法分化为CD27 − CD11b+细胞毒性效应物。我们发现ID2限制了幼稚T淋巴细胞相关基因(包括多种趋化因子受体、细胞因子受体和信号分子)附近E蛋白结合位点的染色质可及性,并改变了NK细胞对炎症细胞因子的反应。在缺乏ID2的情况下,CD27 + CD11b − NK细胞表达ID3,这是一种与幼稚T细胞相关的螺旋-环-螺旋蛋白,它们从CD8记忆前体样状态转变为幼稚样染色质可及性状态。我们证明ID3是ID2缺陷型NK细胞发育所必需的,这表明完全不受约束的E蛋白功能与NK细胞发育不相容。这些数据巩固了ID2和ID3分别作为效应基因程序和幼稚基因程序的介体的作用,并揭示了ID2在促进CD27 + CD11b − NK细胞中的染色质状态和转录程序中的关键作用,这些细胞支持细胞毒性效应分化和细胞因子应答。NK细胞成熟依赖于转录因子ID2阻断幼稚T细胞基因程序的获得
All innate lymphoid cells (ILC) require the small helix-loop-helix transcription factor ID2 but the functions of ID2 are not well understood in these cells. Here we show that mature natural killer (NK) cells, the prototypic ILC, developed in mice lacking ID2 but remained as precursor CD27+CD11b− cells that failed to differentiate into CD27−CD11b+ cytotoxic effectors. We show that ID2 limited chromatin accessibility at E protein binding sites near naïve T lymphocyte-associated genes including multiple chemokine receptors, cytokine receptors, and signaling molecules and altered the NK cell response to inflammatory cytokines. In the absence of ID2, CD27+CD11b− NK cells expressed ID3, a helix-loop-helix protein associated with naïve T cells, and they transitioned from a CD8 memory-precursor-like to a naïve-like chromatin accessibility state. We demonstrate that ID3 was required for the development of ID2-deficient NK cells indicating that completely unfettered E protein function is incompatible with NK cell development. These data solidify the roles of ID2 and ID3 as mediators of effector and naïve gene programs, respectively, and revealed a critical role for ID2 in promoting a chromatin state and transcriptional program in CD27+CD11b− NK cells that supports cytotoxic effector differentiation and cytokine responses. NK cell maturation depends on transcription factor ID2 blocking acquisition of a naïve T cell gene program
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