Cutting edge: Contact with secondary lymphoid organs drives postthymic T cell maturation.

Cutting edge: Contact with secondary lymphoid organs drives postthymic T cell maturation.
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DOI:
10.4049/jimmunol.181.8.5213
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发表时间:
2008-10-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Fink PJ
Fink PJ
中科院分区:
其他
文献类型:
--
作者:
Houston EG Jr;Nechanitzky R;Fink PJ

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T细胞的发育,最初被认为是在胸腺中完成的,最近被证明在淋巴外周中持续数周。推动这种外围成熟的力量尚不清楚。使用由RAG2启动子驱动的GFP转基因小鼠已经能够快速鉴定和分析最近的胸腺移行细胞(RTEs)。在这里,我们表明,RTE成熟是一个渐进的过程,并促进T细胞退出胸腺。此外,我们表明,这种成熟发生在次级淋巴器官,并不需要广泛的淋巴细胞再循环。
T cell development, originally thought to be completed in the thymus, has recently been shown to continue for several weeks in the lymphoid periphery. The forces that drive this peripheral maturation are unclear. The use of mice transgenic for GFP driven by the RAG2 promoter has enabled the ready identification and analysis of recent thymic emigrants (RTEs). Here, we show that RTE maturation is a progressive process and is promoted by T cell exit from the thymus. Further, we show that this maturation occurs within secondary lymphoid organs and does not require extensive lymphocyte recirculation.
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