A novel human CD4+ T-cell inducer subset with potent immunostimulatory properties.

A novel human CD4+ T-cell inducer subset with potent immunostimulatory properties.
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DOI:
10.1002/eji.200939258
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发表时间:
2010-01
影响因子:
5.4
通讯作者:
Nixon, Douglas F.
Nixon, Douglas F.
中科院分区:
医学3区
文献类型:
--
作者:
Ndhlovu, Lishomwa C.;Leal, Fabio E.;Eccles-James, Ijeoma G.;Jha, Aashish R.;Lanteri, Marion;Norris, Philip J.;Barbour, Jason D.;Wachter, Douglas J.;Andersson, Jan;Tasken, Kjetil;Torheim, Eirik A.;Aandahl, Einar M.;Kallas, Esper G.;Nixon, Douglas F.

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免疫调节的复杂性已经将注意力集中在CD 4 + T“抑制”调节细胞(Treg)上,其有助于维持免疫和耐受之间的平衡。三十多年前,在鼠模型中描述了一种免疫调节性T细胞群,其在活化时放大细胞免疫应答。然而,目前还没有研究确定天然存在的T“诱导”细胞类型。在这里,我们报告说,胞外酶CD 39/NTPDase 1(胞外核苷三磷酸二磷酸水解酶1)有助于描绘一个新的人口的人的“诱导”CD 4 + T细胞(TInd),显着增加的增殖和细胞因子的产生反应T细胞的剂量依赖性的方式。此外,与其他CD 4 + T细胞亚群相比,这种独特的TInd细胞亚群产生不同的细胞因子库。我们提出,这种新的CD 4 + T细胞群抵消了外周血中抑制性Treg细胞的抑制活性,并作为免疫调节的校准物。
The complexity of immunoregulation has focused attention on the CD4+ T “suppressor” regulatory cell (Treg), which helps maintain balance between immunity and tolerance. An immunoregulatory T cell population that upon activation amplifies cellular immune responses was described in murine models more than thirty years ago. However, no study has yet identified a naturally occurring T “inducer” cell type. Here, we report that the ectoenzyme CD39/NTPDase1 (ecto-nucleoside triphosphate diphosphohydrolase 1) helps to delineate a novel population of human “inducer” CD4+ T cells (TInd) that significantly increases the proliferation and cytokine production of responder T cells in a dose-dependent manner. Furthermore, this unique TInd cell subset produces a distinct repertoire of cytokines in comparison to the other CD4+ T cell subsets. We propose that this novel CD4+ T cell population counterbalances the suppressive activity of suppressor Treg cells in peripheral blood and serves as a calibrator of immunoregulation.
CD127表达与FOXP3和人类CD4+ T Reg细胞的抑制功能成反比。
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