Selective generation of gut tropic T cells in gut-associated lymphoid tissue (GALT): requirement for GALT dendritic cells and adjuvant.

Selective generation of gut tropic T cells in gut-associated lymphoid tissue (GALT): requirement for GALT dendritic cells and adjuvant.
复制标题

肠道相关淋巴组织(GALT)中的肠道热带T细胞的选择性生成:对Galt树突状细胞和辅助的需求。

DOI:
10.1084/jem.20031244
复制
发表时间:
2003-09-15
影响因子:
15.3
通讯作者:
Agace, W
Agace, W
中科院分区:
医学1区
文献类型:
--
作者:
Johansson-Lindbom, B;Svensson, M;Wurbel, MA;Malissen, B;Márquez, G;Agace, W

文献摘要

参考文献

被引文献

相似文献

在目前的研究中,我们探讨了在肠道相关淋巴组织(GALT)中选择性产生肠道归巢T细胞的潜在机制。我们证明了GALT中的DC在建立T细胞肠向性方面具有独特的能力,但在体内,只有在DC成熟刺激(包括toll样受体依赖性和非依赖性佐剂)存在的情况下,才能将这种特性赋予T细胞。因此,来自肠系膜LNs (MLNs)的dc,而不是来自脾脏的dc,通过活化的CD8+ T细胞支持趋化因子受体CCR9和整合素α4β7的表达。虽然dc也需要有效下调CD62L,但这种功能并不局限于MLN dc。在过继性CD8+ T细胞转移模型中,进入小肠上皮的抗原特异性T细胞均为CCR9+α4β7 +CD62Llow,该表型仅在GALT和佐剂存在的情况下产生。与肠道归巢T细胞的CCR9+表型一致,CCR9被发现在T细胞定位到小肠上皮中起关键作用。总之,这些结果表明,在T细胞归巢到肠道的过程中,GALT dc和CCR9的T细胞表达起着关键的综合作用。
In the current study, we address the underlying mechanism for the selective generation of gut-homing T cells in the gut-associated lymphoid tissues (GALT). We demonstrate that DCs in the GALT are unique in their capacity to establish T cell gut tropism but in vivo only confer this property to T cells in the presence of DC maturational stimuli, including toll-like receptor-dependent and -independent adjuvants. Thus, DCs from mesenteric LNs (MLNs), but not from spleen, supported expression of the chemokine receptor CCR9 and integrin α4β7 by activated CD8+ T cells. While DCs were also required for an efficient down-regulation of CD62L, this function was not restricted to MLN DCs. In an adoptive CD8+ T cell transfer model, antigen-specific T cells entering the small intestinal epithelium were homogeneously CCR9+α4β7 +CD62Llow, and this phenotype was only generated in GALT and in the presence of adjuvant. Consistent with the CCR9+ phenotype of the gut-homing T cells, CCR9 was found to play a critical role in the localization of T cells to the small intestinal epithelium. Together, these results demonstrate that GALT DCs and T cell expression of CCR9 play critical and integrated roles during T cell homing to the gut.
DOI: 10.1084/jem.20011502
发表时间: 2002-01-07
期刊: The Journal of experimental medicine
影响因子: --
作者:
Campbell DJ;Butcher EC
通讯作者: Butcher EC
DOI: 10.1084/jem.194.6.769
发表时间: 2001-09-17
期刊: The Journal of experimental medicine
影响因子: --
作者:
Hawiger D;Inaba K;Dorsett Y;Guo M;Mahnke K;Rivera M;Ravetch JV;Steinman RM;Nussenzweig MC
通讯作者: Nussenzweig MC
CD40-CD40配体相互作用在粘膜CD8 T细胞反应扩增中的关键作用。
DOI: 10.1084/jem.190.9.1275
发表时间: 1999-11-01
影响因子: 15.3
作者:
Lefrancois, L;Olson, S;Masopust, D
通讯作者: Masopust, D
DOI: 10.1182/blood.v97.4.850
发表时间: 2001-02-15
期刊: BLOOD
影响因子: 20.3
作者:
Carramolino, L;Zaballos, A;Márquez, G
通讯作者: Márquez, G
DOI: 10.1182/blood.v98.9.2626
发表时间: 2001-11-01
期刊: BLOOD
影响因子: 20.3
作者:
Wurbel, MA;Malissen, M;Malissen, B
通讯作者: Malissen, B