CCR6 is expressed on an IL-10-producing, autoreactive memory T cell population with context-dependent regulatory function.
CCR6 is expressed on an IL-10-producing, autoreactive memory T cell population with context-dependent regulatory function.
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DOI:
10.1084/jem.20091021
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发表时间:
2010-03-15
期刊:
影响因子:
--
通讯作者:
Geginat J
中科院分区:
文献类型:
--
作者:
Rivino L;Gruarin P;Häringer B;Steinfelder S;Lozza L;Steckel B;Weick A;Sugliano E;Jarrossay D;Kühl AA;Loddenkemper C;Abrignani S;Sallusto F;Lanzavecchia A;Geginat J
Interleukin (IL)-10 produced by regulatory T cell subsets is important for the prevention of autoimmunity and immunopathology, but little is known about the phenotype and function of IL-10–producing memory T cells. Human CD4+CCR6+ memory T cells contained comparable numbers of IL-17– and IL-10–producing cells, and CCR6 was induced under both Th17-promoting conditions and upon tolerogenic T cell priming with transforming growth factor (TGF)–β. In normal human spleens, the majority of CCR6+ memory T cells were in the close vicinity of CCR6+ myeloid dendritic cells (mDCs), and strikingly, some of them were secreting IL-10 in situ. Furthermore, CCR6+ memory T cells produced suppressive IL-10 but not IL-2 upon stimulation with autologous immature mDCs ex vivo, and secreted IL-10 efficiently in response to suboptimal T cell receptor (TCR) stimulation with anti-CD3 antibodies. However, optimal TCR stimulation of CCR6+ T cells induced expression of IL-2, interferon-γ, CCL20, and CD40L, and autoreactive CCR6+ T cell lines responded to various recall antigens. Notably, we isolated autoreactive CCR6+ T cell clones with context-dependent behavior that produced IL-10 with autologous mDCs alone, but that secreted IL-2 and proliferated upon stimulation with tetanus toxoid. We propose the novel concept that a population of memory T cells, which is fully equipped to participate in secondary immune responses upon recognition of a relevant recall antigen, contributes to the maintenance of tolerance under steady-state conditions.
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DOI:
10.1084/jem.20070663
发表时间:
2007-08-06
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Annunziato F;Cosmi L;Santarlasci V;Maggi L;Liotta F;Mazzinghi B;Parente E;Filì L;Ferri S;Frosali F;Giudici F;Romagnani P;Parronchi P;Tonelli F;Maggi E;Romagnani S
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15.3
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von Boehmer, H
DOI:
10.1084/jem.186.8.1223
发表时间:
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期刊:
The Journal of experimental medicine
影响因子:
--
作者:
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通讯作者:
Brocker T
影响因子:
15.3
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Asseman, C;Mauze, S;Leach, M W;Coffman, R L;Powrie, F
通讯作者:
Powrie, F
DOI:
10.1084/jem.20062381
发表时间:
2007-03-19
期刊:
The Journal of experimental medicine
影响因子:
--
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Dooms H;Wolslegel K;Lin P;Abbas AK
通讯作者:
Abbas AK