TNF-alpha blockade induces IL-10 expression in human CD4+T cells

Hayley G. Evans, Urmas Roostalu, Gina J. Walter, Nicola J. Gullick, Klaus S. Frederiksen, Ceri A. Roberts, Jonathan Sumner, Dominique L. Baeten, Jens G. Gerwien, Andrew P. Cope, Frederic Geissmann, Bruce Kirkham, Leonie S. Taams*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

100 Citations (Scopus)

Abstract

IL-17+ CD4+ T (Th17) cells contribute to the pathogenesis of several human inflammatory diseases. Here we demonstrate that TNF inhibitor (TNFi) drugs induce the anti-inflammatory cytokine IL-10 in CD4+ T cells including IL-17+ CD4+ T cells. TNFi-mediated induction of IL-10 in IL-17+ CD4+ T cells is Treg-/Foxp3-independent, requires IL-10 and is overcome by IL-1β. TNFi-exposed IL-17+ CD4+ T cells are molecularly and functionally distinct, with a unique gene signature characterized by expression of IL10 and IKZF3 (encoding Aiolos). We show that Aiolos binds conserved regions in the IL10 locus in IL-17+ CD4+ T cells. Furthermore, IKZF3 and IL10 expression levels correlate in primary CD4+ T cells and Aiolos overexpression is sufficient to drive IL10 in these cells. Our data demonstrate that TNF-α blockade induces IL-10 in CD4+ T cells including Th17 cells and suggest a role for the transcription factor Aiolos in the regulation of IL-10 in CD4+ T cells.
Original languageEnglish
Article number3199
Number of pages12
JournalNature Communications
Volume5
Issue number1
Early online date4 Feb 2014
DOIs
Publication statusPublished - 4 Feb 2014

Keywords

  • REGULATORY T-CELLS
  • PATHOGENIC T(H)17 CELLS
  • GROWTH-FACTOR-BETA
  • RHEUMATOID-ARTHRITIS
  • TH17 CELLS
  • GENE-EXPRESSION
  • IFN-GAMMA
  • ACTIVATED MONOCYTES
  • JOINT INFLAMMATION
  • BONE EROSION

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