@ARTICLE{10.3389/fimmu.2018.01565, AUTHOR={Iglesias, Marcos and Arun, Anirudh and Chicco, Maria and Lam, Brandon and Talbot, C. Conover and Ivanova, Vera and Lee, W. P. A. and Brandacher, Gerald and Raimondi, Giorgio}, TITLE={Type-I Interferons Inhibit Interleukin-10 Signaling and Favor Type 1 Diabetes Development in Nonobese Diabetic Mice}, JOURNAL={Frontiers in Immunology}, VOLUME={9}, YEAR={2018}, URL={https://www.frontiersin.org/articles/10.3389/fimmu.2018.01565}, DOI={10.3389/fimmu.2018.01565}, ISSN={1664-3224}, ABSTRACT={Destruction of insulin-producing β-cells by autoreactive T lymphocytes leads to the development of type 1 diabetes. Type-I interferons (TI-IFN) and interleukin-10 (IL-10) have been connected with the pathophysiology of this disease; however, their interplay in the modulation of diabetogenic T cells remains unknown. We have discovered that TI-IFN cause a selective inhibition of IL-10 signaling in effector and regulatory T cells, altering their responses. This correlates with diabetes development in nonobese diabetic mice, where the inhibition is also spatially localized to T cells of pancreatic and mesenteric lymph nodes. IL-10 signaling inhibition is reversible and can be restored via blockade of TI-IFN/IFN-R interaction, paralleling with the resulting delay in diabetes onset and reduced severity. Overall, we propose a novel molecular link between TI-IFN and IL-10 signaling that helps better understand the complex dynamics of autoimmune diabetes development and reveals new strategies of intervention.} }