Cutting edge: Generation of colitogenic Th17 CD4 T cells is enhanced by IL-17+ γδ T cells.
Cutting edge: Generation of colitogenic Th17 CD4 T cells is enhanced by IL-17+ γδ T cells.
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DOI：
10.4049/jimmunol.1004021
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发表时间：
2011-04-15
期刊：
影响因子：
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通讯作者：
Min B
中科院分区：
文献类型：
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作者：
Do JS;Visperas A;Dong C;Baldwin WM 3rd;Min B
Th17 cells have been implicated in the pathogenesis of colitis; however, a cellular mechanism by which colitogenic Th17 immunity arises in vivo remains unclear. In this study, we report that a subset of IL-17+γδ T cells plays a crucial role in enhancing in vivo Th17 differentiation and T cell-mediated colitis. TCRβ-/- mice were highly susceptible to T cell-mediated colitis, while TCRβδ-/- mice were resistant to the disease. Importantly, cotransfer of IL-17+ but not of IL-17-γδ T cells with CD4 T cells was sufficient to enhance Th17 differentiation and induce full-blown colitis in TCRβδ-/- recipients. Collectively, our results provide a novel function of IL-17+γδ T cell subsets in supporting in vivo Th17 differentiation and possibly in fostering the development of intestinal inflammation.
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