GM-CSF controls nonlymphoid tissue dendritic cell homeostasis but is dispensable for the differentiation of inflammatory dendritic cells.

GM-CSF controls nonlymphoid tissue dendritic cell homeostasis but is dispensable for the differentiation of inflammatory dendritic cells.
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GM-CSF控制非淋巴组织树突状细胞稳态,但对于炎性树突状细胞的分化是可分配的。

DOI:
10.1016/j.immuni.2012.03.027
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发表时间:
2012-06-29
期刊:
影响因子:
32.4
通讯作者:
Merad M
Merad M
中科院分区:
医学1区
文献类型:
--
作者:
Greter M;Helft J;Chow A;Hashimoto D;Mortha A;Agudo-Cantero J;Bogunovic M;Gautier EL;Miller J;Leboeuf M;Lu G;Aloman C;Brown BD;Pollard JW;Xiong H;Randolph GJ;Chipuk JE;Frenette PS;Merad M

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巨噬细胞集落刺激因子(GM-CSF,CSF-2)是体外产生树突状细胞(DCs)的关键细胞因子,被认为控制某些组织中炎性DCs和CD103+DCs的形成。在这里,我们显示与目前的理解相反,CSF-2受体在稳定状态下作用于促进非淋巴组织驻留的CD103+和CD11b+DC的存活和动态平衡。颗粒抗原免疫后,肺树突状细胞表面缺失的CSF2受体阻断了CD8+T细胞免疫。相反,在急性损伤过程中,CSF-2受体对于炎性DC的分化和固有功能是必不可少的。相反,炎症性DC的发育需要CSF-1受体。因此,在疫苗诱导的CD8+T细胞免疫中,CSF-2通过调节体内非淋巴组织DC的动态平衡而不是控制炎症性DC而发挥重要作用。
GM-CSF (Csf-2) is a critical cytokine for the in vitro generation of dendritic cells (DCs) and is thought to control the development of inflammatory DCs and resident CD103+ DCs in some tissues. Here we showed that in contrast to the current understanding, Csf-2 receptor acts in the steady state to promote the survival and homeostasis of nonlymphoid tissue-resident CD103+ and CD11b+ DCs. Absence of Csf-2 receptor on lung DCs abrogated the induction of CD8+ T cell immunity after immunization with particulate antigens. In contrast, Csf-2 receptor was dispensable for the differentiation and innate function of inflammatory DCs during acute injuries. Instead, inflammatory DCs required Csf-1 receptor for their development. Thus, Csf-2 is important in vaccine-induced CD8+ T cell immunity through the regulation of nonlymphoid tissue DC homeostasis rather than control of inflammatory DCs in vivo.
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