Bcl6 expression specifies the T follicular helper cell program in vivo.

Bcl6 expression specifies the T follicular helper cell program in vivo.
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DOI:
10.1084/jem.20120219
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发表时间:
2012-09-24
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Dong C
Dong C
中科院分区:
其他
文献类型:
--
作者:
Liu X;Yan X;Zhong B;Nurieva RI;Wang A;Wang X;Martin-Orozco N;Wang Y;Chang SH;Esplugues E;Flavell RA;Tian Q;Dong C

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一种新型Bcl 6报告小鼠用于剖析Tfh细胞的发育要求、可塑性和遗传特征。滤泡辅助性T细胞(Tfh细胞)在生殖中心反应中起关键作用,其需要B细胞淋巴瘤6(Bcl 6)转录因子。为了分析它们与其他效应T细胞谱系的关系以及它们在体内的稳定性,我们单独或与其他谱系报告系统一起开发并分析了新的Bcl 6报告小鼠。在全基因组转录组分析的辅助下,我们显示了免疫应答早期T细胞分化的实质性可塑性。在此阶段,CXCR5似乎以Bcl 6非依赖性方式表达。一旦Bcl 6高表达,Tfh细胞可以在体内存活,其中一些细胞发育成记忆细胞。总之,我们的结果表明Bcl 6作为Tfh极化程序的真正标记。
A novel Bcl6 reporter mouse is used to dissect the developmental requirements, plasticity, and genetic profile of Tfh cells. T follicular helper cells (Tfh cells) play a pivotal role in germinal center reactions, which require B cell lymphoma 6 (Bcl6) transcription factor. To analyze their relationships with other effector T cell lineages and their stability in vivo, we developed and analyzed a new Bcl6 reporter mouse alone or together with other lineage reporter systems. Assisted with genome-wide transcriptome analysis, we show substantial plasticity of T cell differentiation in the early phase of immune response. At this stage, CXCR5 appears to be expressed in a Bcl6-independent manner. Once Bcl6 is highly expressed, Tfh cells can persist in vivo and some of them develop into memory cells. Together, our results indicate Bcl6 as a bona fide marker for Tfh polarized program.
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