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首页> 外文期刊>Nature immunology >Maintenance of the Foxp3-dependent developmental program in mature regulatory T cells requires continued expression of Foxp3.
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Maintenance of the Foxp3-dependent developmental program in mature regulatory T cells requires continued expression of Foxp3.

机译:在成熟的调节性T细胞中维持Foxp3依赖的发育程序需要继续表达Foxp3。

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摘要

The transcription factor Foxp3 is required for the development of regulatory T cells (T(reg) cell). Here we report that induced ablation of a loxP-flanked Foxp3 allele in mature T(reg) cells resulted in the loss of their suppressive function in vivo and acquisition of the ability to produce interleukin 2 and T helper type 1 cytokines. Furthermore, after adoptive transfer in the absence of functional T(reg) cells into lymphopenic hosts, T(reg) cells with deletion of Foxp3 proliferated and were predominant among tissue-infiltrating T cells. In agreement with those results, we found deregulation of Foxp3 target gene expression after Foxp3 deletion. Thus, continued Foxp3 expression in mature T(reg) cells is needed to maintain the transcriptional and functional program established during T(reg) cell development.
机译:转录因子Foxp3是调节性T细胞(T(reg)细胞)发育所必需的。在这里我们报道,成熟的T(reg)细胞中loxP侧翼的Foxp3等位基因的诱导消融导致其体内抑制功能的丧失,并获得了产生白介素2和T辅助1型细胞因子的能力。此外,在不存在功能性T(reg)细胞的情况下过继转移至淋巴细胞减少的宿主后,具有Foxp3缺失的T(reg)细胞增殖,并在组织浸润性T细胞中占主导地位。与那些结果相一致,我们发现Foxp3缺失后Foxp3靶基因表达的失调。因此,需要在成熟的T(reg)细胞中继续Foxp3表达,以维持在T(reg)细胞发育过程中建立的转录和功能程序。

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