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Nuclear antigen–reactive CD4+ T cells expand in active systemic lupus erythematosus, produce effector cytokines, and invade the kidneys

Dimas Abdirama, Sebastian Tesch, Anna Sophie Grießbach, Caroline von Spee-Mayer, Jens Y. Humrich, Ulrik Stervbo, Nina Babel, Christian Meisel, Tobias Alexander, Robert Biesen, Petra Bacher, Alexander Scheffold, Kai Uwe Eckardt, Falk Hiepe, Andreas Radbruch, Gerd Rüdiger Burmester, Gabriela Riemekasten*, Philipp Enghard

*Korrespondierende/r Autor/-in für diese Arbeit

Abstract

Systemic lupus erythematosus is a systemic and chronic autoimmune disease characterized by loss of tolerance towards nuclear antigens with autoreactive CD4+ T cells implicated in disease pathogenesis. However, very little is known about their receptor specificity since the detection of human autoantigen specific CD4+ T cells has been extremely challenging. Here we present an analysis of CD4+ T cells reactive to nuclear antigens using two complementary methods: T cell libraries and antigen-reactive T cell enrichment. The frequencies of nuclear antigen specific CD4+ T cells correlated with disease severity. These autoreactive T cells produce effector cytokines such as interferon-γ, interleukin-17, and interleukin-10. Compared to blood, these cells were enriched in the urine of patients with active lupus nephritis, suggesting an infiltration of the inflamed kidneys. Thus, these previously unrecognized characteristics support a role for nuclear antigen-specific CD4+ T cells in systemic lupus erythematosus.

OriginalspracheEnglisch
ZeitschriftKidney International
ISSN0085-2538
DOIs
PublikationsstatusVeröffentlicht - 24.06.2020

Fördermittel

We thank Toralf Kaiser and Jenny Kirsch (Flow Cytometry and Cell Sorting Facility, Deutsches Rheuma-Forschungszentrum Berlin) for assistance with flow cytometry and cell sorting. Support for these studies was provided by grants from the Deutsche Forschungsgemeinschaft within the Sonderforschungsbereich 650 to GR and by grants from Deutsche Gesellschaft für Nephrologie and Clinical Scientist Program of Charité – Universitätsmedizin Berlin and Berlin Institute of Health to PE.

UN SDGs

Dieser Output leistet einen Beitrag zu folgendem(n) Ziel(en) für nachhaltige Entwicklung

  1. SDG 3 – Gesundheit und Wohlergehen
    SDG 3 – Gesundheit und Wohlergehen

Strategische Forschungsbereiche und Zentren

  • Forschungsschwerpunkt: Infektion und Entzündung - Zentrum für Infektions- und Entzündungsforschung Lübeck (ZIEL)

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