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The Clinical Relevance of IL-17-Producing CD4+CD161+ Cell and Its Subpopulations in Primary Sjogren's Syndrome.


ABSTRACT:

Objective

Th17 cells have been demonstrated to play an important role in the onset and development of primary Sjögren's syndrome (pSS). In this study, we evaluated the expansion and clinical significance of circulating CD4+CD161+ T cell and its "effector" (CD4+CD25-CD161+ T cell) and "regulatory" (CD4+CD25+CD161+ T cell) subpopulations.

Methods

Fifty-eight pSS patients and 16 healthy controls (HCs) were recruited in our study. The cell populations and intracellular IL-17 expression were analyzed by flow cytometry. The disease activity was evaluated by the EULAR-SS Disease Activity Index (ESSDAI). Autoantibodies were measured by ELISA or indirect immunofluorescence assay.

Results

The CD161+ T cell fractions showed higher proportions of IL-17-producing cells. The frequencies of the overall CD4+CD161+ T cell population and its effector subset were positively correlated with disease activity parameters and more severe disease manifestations. A significant elevation of the CD4+CD25+CD161+ T cell subpopulation was observed in the peripheral blood of pSS patients compared to HCs and this subset showed decreased regulatory functions compared with the CD4+CD25+CD161- population.

Conclusion

Circulating CD4+CD161+ T cell populations associated with pSS disease activity and severity. These cells might be involved in the development of pSS and could be potential therapeutic targets in the treatment of pSS.

SUBMITTER: Li L 

PROVIDER: S-EPMC4578753 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Publications

The Clinical Relevance of IL-17-Producing CD4+CD161+ Cell and Its Subpopulations in Primary Sjögren's Syndrome.

Li Linbo L   He Jing J   Zhu Lei L   Yang Yuqin Y   Jin Yuebo Y   Jia Rulin R   Liu Xu X   Liu Yanying Y   Sun Xiaolin X   Li Zhanguo Z  

Journal of immunology research 20150908


<h4>Objective</h4>Th17 cells have been demonstrated to play an important role in the onset and development of primary Sjögren's syndrome (pSS). In this study, we evaluated the expansion and clinical significance of circulating CD4+CD161+ T cell and its "effector" (CD4+CD25-CD161+ T cell) and "regulatory" (CD4+CD25+CD161+ T cell) subpopulations.<h4>Methods</h4>Fifty-eight pSS patients and 16 healthy controls (HCs) were recruited in our study. The cell populations and intracellular IL-17 expressio  ...[more]

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