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Reinert-Hartwall, Linnea; Honkanen, Jarno; Salo, Harri M.; Nieminen, Janne K.; Luopajärvi, Kristiina; Härkönen, Taina; Veijola, Riitta; Simell, Olli; Ilonen, Jorma; Peet, Aleksandr; Tillmann, Vallo; Knip, Mikael; Vaarala, Outi; Knip, Mikael; Koski, Katriina; Koski, Matti; Härkönen, Taina; Ryhänen, Samppa; Hämäläinen, Anu-Maaria; Ormisson, Anne; Peet, Aleksandr; Tillmann, Vallo; Ulich, Valentina; Kuzmicheva, Elena; [...]

Th1/Th17 Plasticity Is a Marker of Advanced β Cell Autoimmunity and Impaired Glucose Tolerance in Humans

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  • Medientyp: E-Artikel
  • Titel: Th1/Th17 Plasticity Is a Marker of Advanced β Cell Autoimmunity and Impaired Glucose Tolerance in Humans
  • Beteiligte: Reinert-Hartwall, Linnea; Honkanen, Jarno; Salo, Harri M.; Nieminen, Janne K.; Luopajärvi, Kristiina; Härkönen, Taina; Veijola, Riitta; Simell, Olli; Ilonen, Jorma; Peet, Aleksandr; Tillmann, Vallo; Knip, Mikael; Vaarala, Outi; Knip, Mikael; Koski, Katriina; Koski, Matti; Härkönen, Taina; Ryhänen, Samppa; Hämäläinen, Anu-Maaria; Ormisson, Anne; Peet, Aleksandr; Tillmann, Vallo; Ulich, Valentina; Kuzmicheva, Elena; [...]
  • Erschienen: The American Association of Immunologists, 2015
  • Erschienen in: The Journal of Immunology
  • Sprache: Englisch
  • DOI: 10.4049/jimmunol.1401653
  • ISSN: 0022-1767; 1550-6606
  • Schlagwörter: Immunology ; Immunology and Allergy
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:title>Abstract</jats:title> <jats:p>Upregulation of IL-17 immunity and detrimental effects of IL-17 on human islets have been implicated in human type 1 diabetes. In animal models, the plasticity of Th1/Th17 cells contributes to the development of autoimmune diabetes. In this study, we demonstrate that the upregulation of the IL-17 pathway and Th1/Th17 plasticity in peripheral blood are markers of advanced β cell autoimmunity and impaired β cell function in human type 1 diabetes. Activated Th17 immunity was observed in the late stage of preclinical diabetes in children with β cell autoimmunity and impaired glucose tolerance, but not in children with early β cell autoimmunity. We found an increased ratio of IFN-γ/IL-17 expression in Th17 cells in children with advanced β cell autoimmunity, which correlated with HbA1c and plasma glucose concentrations in an oral glucose tolerance test, and thus impaired β cell function. Low expression of Helios was seen in Th17 cells, suggesting that Th1/Th17 cells are not converted thymus-derived regulatory T cells. Our results suggest that the development of Th1/Th17 plasticity may serve as a biomarker of disease progression from β cell autoantibody positivity to type 1 diabetes. These data in human type 1 diabetes emphasize the role of Th1/Th17 plasticity as a potential contributor to tissue destruction in autoimmune conditions.</jats:p>
  • Zugangsstatus: Freier Zugang