Clonal expansions of CD8+ T cells with IL-10 secreting capacity occur during chronic Mycobacterium tuberculosis infection.
Clonal expansions of CD8+ T cells with IL-10 secreting capacity occur during chronic Mycobacterium tuberculosis infection.
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DOI：
10.1371/journal.pone.0058612
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Turner J
中科院分区：
文献类型：
--
作者：
Cyktor JC;Carruthers B;Beamer GL;Turner J
The exact role of CD8+ T cells during Mycobacterium tuberculosis (Mtb) infection has been heavily debated, yet it is generally accepted that CD8+ T cells contribute to protection against Mtb. In this study, however, we show that the Mtb-susceptible CBA/J mouse strain accumulates large numbers of CD8+ T cells in the lung as infection progresses, and that these cells display a dysfunctional and immunosuppressive phenotype (PD-1+, Tim-3+, CD122+). CD8+ T cell expansions from the lungs of Mtb-infected CBA/J mice were also capable of secreting the immunosuppressive cytokine interleukin-10 (IL-10), although in vivo CD8+ T cell depletion did not significantly alter Mtb burden. Further analysis revealed that pulmonary CD8+ T cells from Mtb-infected CBA/J mice were clonally expanded, preferentially expressing T cell receptor (TcR) Vβ chain 8 (8.2, 8.3) or Vβ 14. Although Vβ8+ CD8+ T cells were responsible for the majority of IL-10 production, in vivo depletion of Vβ8+ did not significantly change the outcome of Mtb infection, which we hypothesize was a consequence of their dual IL-10/IFN-γ secreting profiles. Our data demonstrate that IL-10-secreting CD8+ T cells can arise during chronic Mtb infection, although the significance of this T cell population in tuberculosis pathogenesis remains unclear.
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DOI：
10.4049/jimmunol.181.8.5545
发表时间：
2008-10-15
期刊：
Journal of immunology (Baltimore, Md. : 1950)
影响因子：
--
作者：
Beamer GL;Flaherty DK;Assogba BD;Stromberg P;Gonzalez-Juarrero M;de Waal Malefyt R;Vesosky B;Turner J
通讯作者：
Turner J
DOI：
10.1073/pnas.83.3.767
发表时间：
1986-02-01
影响因子：
11.1
作者：
BEHLKE, MA;CHOU, HS;LOH, DY
通讯作者：
LOH, DY
影响因子：
15.9
作者：
Baitsch, Lukas;Baumgaertner, Petra;Speiser, Daniel E.
通讯作者：
Speiser, Daniel E.
影响因子：
5.4
作者：
Beamer, Gillian L.;Cyktor, Joshua;Turner, Joanne
通讯作者：
Turner, Joanne
影响因子：
30.5
作者：
Blackburn, Shawn D.;Shin, Haina;Haining, W. Nicholas;Zou, Tao;Workman, Creg J.;Polley, Antonio;Betts, Michael R.;Freeman, Gordon J.;Vignali, Dario A. A.;Wherry, E. John
通讯作者：
Wherry, E. John