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Deficiency in T Follicular Regulatory Cells Promotes Autoimmunity

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Journal J Exp Med
Date 2018 Jan 31
PMID 29378778
Citations 99
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Abstract

T follicular regulatory (Tfr) cells are a new subset of regulatory T (T reg) cells localized in the germinal center to limit the humoral response. Until now, the physiological function of Tfr cells has been largely unknown. In this study, we developed a mouse to analyze the function of Tfr cells in immune and autoimmune responses. These mice exhibited enhanced immunity to influenza virus; moreover, mice developed late-onset spontaneous autoimmune diseases, affecting the salivary glands with lymphocyte infiltration and antibody deposition. In a mouse experimental Sjögren's syndrome model, ablation of in T reg cells greatly enhanced disease development. Conversely, mice were protected in the model. Thus, our study indicates that Tfr cells control autoimmune diseases and can be targeted in infectious and autoimmune disease.

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