PIR-B expressing CD8+ T cells exhibit features of Tc1 and Tc17 in SKG mice.
PIR-B expressing CD8+ T cells exhibit features of Tc1 and Tc17 in SKG mice.
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SKG 小鼠中表达 PIR-B 的 CD8 T 细胞表现出 Tc1 和 Tc17 的特征
DOI:
10.1093/rheumatology/kez256
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发表时间:
2019
期刊:
影响因子:
5.5
通讯作者:
Wagner
中科院分区:
文献类型:
--
作者:
Quandt;Köhler;Jasinski-Bergner;Seliger;Pierer;Wagner
ObjectiveIn autoimmune arthritis, TCR signalling is attenuated by peripheral tolerance mechanisms. We have described previously a population of inhibitory receptor LIR-1 expressing autoreactive CD8+T cells in rheumatoid arthritis. Here, we investigated the role of CD8+T cells in murine autoimmune arthritis by analysing their expression of the mouse orthologue of LIR-1, PIR-B.MethodsFrequencies of PIR-B+CD8+T cells were determined in the SKG arthritis model. The phenotype of those cells was determinedex vivoby FACS and functionality was investigated by means of cytokine production and cytolytic potential upon activationin vitro.ResultsSKG mice, under non-SPF (specific pathogen-free) conditions with clinical symptoms of arthritis, were found to harbour significantly increased frequencies of PIR-B+CD8+T cells. Those cells showed a pro-inflammatory phenotype with preferential production of IL-17 and IFN-γ. The frequency of those cells correlated inversely with the arthritis score, indicating that they might represent autoreactive, but functionally inhibited, CD8+T cells.ConclusionPIR-B+CD8+T cells from SKG mice show a cytotoxic and pro-inflammatory phenotype. Inhibition of CD8+T cell autoreactivity by PIR-B/LIR-1 receptor signalling might be a counter-regulatory mechanism to curb autoreactivity and arthritis.
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影响因子:
4.4
作者:
P. Svendsen;C. Andersen;N. Willcox;A. Coyle;R. Holmdahl;T. Kamradt;L. Fugger
通讯作者:
L. Fugger
影响因子:
16.8
作者:
Goronzy, JJ;Weyand, CM
通讯作者:
Weyand, CM
影响因子:
5.4
作者:
Rothe, Kathrin;Raulien, Nora;Wagner, Ulf
通讯作者:
Wagner, Ulf
DOI:
10.1073/pnas.96.26.15086
发表时间:
1999-12-21
影响因子:
11.1
作者:
Ho, LH;Uehara, T;Cooper, MD
通讯作者:
Cooper, MD