ILC1 Confer Early Host Protection at Initial Sites of Viral Infection.

ILC1 Confer Early Host Protection at Initial Sites of Viral Infection.
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DOI:
10.1016/j.cell.2017.09.052
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发表时间:
2017-11-02
期刊:
影响因子:
64.5
通讯作者:
O'Sullivan TE
O'Sullivan TE
中科院分区:
生物学1区
文献类型:
--
作者:
Weizman OE;Adams NM;Schuster IS;Krishna C;Pritykin Y;Lau C;Degli-Esposti MA;Leslie CS;Sun JC;O'Sullivan TE

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感染受到组织居民的一致激活和循环的免疫细胞。 ILC1)在宿主中起着重要的早期作用通过快速产生干扰素(IFN) - γ依赖于ZFP683的肝脏ILC1的免疫力会导致病毒载量增加,而在存在完整的适应性免疫和天生的免疫力中,对小鼠细胞病毒(MCMV)的生产至关重要。 γ以STAT4依赖性方式限制了早期病毒负担。 ILC1响应于局部CDC1衍生的促炎细胞因子,在初始感染部位的病毒免疫监视中贡献了至关重要的作用。 先天淋巴样细胞作为对病毒感染的初始反应者具有非冗余作用
Infection is restrained by the concerted activation of tissue-resident and circulating immune cells. Whether tissue-resident lymphocytes confer early antiviral immunity at local sites of primary infection prior to the initiation of circulating responses is not well understood. Furthermore, the kinetics of initial antiviral responses at sites of infection remain unclear. Here, we show that tissue-resident type 1 innate lymphoid cells (ILC1) serve an essential early role in host immunity through rapid production of interferon (IFN)-γ following viral infection. Ablation of Zfp683-dependent liver ILC1 lead to increased viral load in the presence of intact adaptive and innate immune cells critical for mouse cytomegalovirus (MCMV) clearance. Swift production of IL-12 by tissue-resident XCR1+ conventional dendritic cells (cDC1) promoted ILC1 production of IFN-γ in a STAT4-dependent manner to limit early viral burden. Thus, ILC1 contribute an essential role in viral immunosurveillance at sites of initial infection in response to local cDC1-derived proinflammatory cytokines. Innate lymphoid cells have a non- redundant role as initial responders to viral infections
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