Pfeifle, Rene, Rothe, Tobias, Ipseiz, Natacha ![]() |
Abstract
The checkpoints and mechanisms that contribute to autoantibody-driven disease are as yet incompletely understood. Here we identified the axis of interleukin 23 (IL-23) and the TH17 subset of helper T cells as a decisive factor that controlled the intrinsic inflammatory activity of autoantibodies and triggered the clinical onset of autoimmune arthritis. By instructing B cells in an IL-22- and IL-21-dependent manner, TH17 cells regulated the expression of β-galactoside α2,6-sialyltransferase 1 in newly differentiating antibody-producing cells and determined the glycosylation profile and activity of immunoglobulin G (IgG) produced by the plasma cells that subsequently emerged. Asymptomatic humans with rheumatoid arthritis (RA)-specific autoantibodies showed identical changes in the activity and glycosylation of autoreactive IgG antibodies before shifting to the inflammatory phase of RA; thus, our results identify an IL-23–TH17 cell–dependent pathway that controls autoantibody activity and unmasks a preexisting breach in immunotolerance.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Medicine |
Publisher: | Nature Publishing Group |
ISSN: | 1529-2908 |
Date of Acceptance: | 8 September 2016 |
Last Modified: | 10 Jun 2023 01:45 |
URI: | https://orca.cardiff.ac.uk/id/eprint/127540 |
Citation Data
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