Differentiation of effector/memory Vdelta2 T cells and migratory routes in lymph nodes or inflammatory sites.

Differentiation of effector/memory Vdelta2 T cells and migratory routes in lymph nodes or inflammatory sites.
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效应/记忆 Vdelta2 T 细胞的分化以及淋巴结或炎症部位的迁移途径。

DOI:
10.1084/jem.20030235
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发表时间:
2003-08-04
影响因子:
15.3
通讯作者:
Salerno, A
Salerno, A
中科院分区:
医学1区
文献类型:
--
作者:
Dieli, F;Poccia, F;Lipp, M;Sireci, G;Caccamo, N;Di Sano, C;Salerno, A

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V-δ-2T淋巴细胞在不经MHC分子呈递的情况下识别非肽类抗原,并在微生物感染后同时启动即刻效应功能和记忆反应。然而,Vδ2T细胞如何调节记忆反应的不同方面仍不清楚。在这里,我们发现CD45RA和CD27抗原的表达定义了人类Vδ2T细胞的四个亚群,它们具有不同的区隔途径。原始CD45RA+CD27+细胞和记忆性CD45RA−CD27+细胞表达淋巴归巢受体,在淋巴结中大量存在,缺乏即刻效应功能。相反,表达归巢到炎症组织的受体的记忆性CD45RA−CD27−和终末分化的CD45RA+CD27−细胞在淋巴结中表达较少,而在炎症部位表达丰富,并具有即时效应功能。这些观察和额外的体外实验表明,人类Vδ2T细胞具有一种谱系分化模式,它产生在淋巴结中循环的幼稚细胞,在血液中巡逻的效应/记忆细胞,以及驻留在炎症组织中的终末分化的效应细胞。
Vδ2 T lymphocytes recognize nonpeptidic antigens without presentation by MHC molecules and mount both immediate effector functions and memory responses after microbial infection. However, how Vδ2 T cells mediate different facets of a memory response remains unknown. Here, we show that the expression of CD45RA and CD27 antigens defines four subsets of human Vδ2 T cells with distinctive compartmentalization routes. Naive CD45RA+CD27+ and memory CD45RA−CD27+ cells express lymph node homing receptors, abound in lymph nodes, and lack immediate effector functions. Conversely, memory CD45RA−CD27− and terminally differentiated CD45RA+CD27− cells, which express receptors for homing to inflamed tissues, are poorly represented in the lymph nodes while abounding at sites of inflammation, and display immediate effector functions. These observations and additional in vitro experiments indicate a lineage differentiation pattern for human Vδ2 T cells that generates naive cells circulating in lymph nodes, effector/memory cells patrolling the blood, and terminally differentiated effector cells residing in inflamed tissues.
DOI: 10.1038/44385
发表时间: 1999-10-14
期刊: NATURE
影响因子: 64.8
作者:
Sallusto, F;Lenig, D;Lanzavecchia, A
通讯作者: Lanzavecchia, A
DOI: 10.1016/s0092-8674(00)80059-8
发表时间: 1999-10-01
期刊: CELL
影响因子: 64.5
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DOI: 10.1038/33340
发表时间: 1998-04-09
期刊: NATURE
影响因子: 64.8
作者:
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DOI: 10.1084/jem.186.9.1407
发表时间: 1997-11-03
期刊: The Journal of experimental medicine
影响因子: --
作者:
Hamann D;Baars PA;Rep MH;Hooibrink B;Kerkhof-Garde SR;Klein MR;van Lier RA
通讯作者: van Lier RA
DOI: 10.1038/360264a0
发表时间: 1992-11-19
期刊: NATURE
影响因子: 64.8
作者:
MICHIE, CA;MCLEAN, A;BEVERLEY, PCL
通讯作者: BEVERLEY, PCL