Lookup NU author(s): Professor Andrew Cant,
Dr Mario Abinun,
Dr Desa Lilic
Most patients with autoimmune polyendocrine syndrome type I (APS-I) display chronic mucocutaneous candidiasis (CMC). We hypothesized that this CMC might result from autoimmunity to interleukin (IL)-17 cytokines. We found high titers of autoantibodies (auto-Abs) against IL-17A, IL-17F, and/or IL-22 in the sera of all 33 patients tested, as detected by multiplex particle-based flow cytometry. The auto-Abs against IL-17A, IL-17F, and IL-22 were specific in the five patients tested, as shown by Western blotting. The auto-Abs against IL-17A were neutralizing in the only patient tested, as shown by bioassays of IL-17A activity. None of the 37 healthy controls and none of the 103 patients with other autoimmune disorders tested had such auto-Abs. None of the patients with APS-I had auto-Abs against cytokines previously shown to cause other well-defined clinical syndromes in other patients (IL-6, interferon [IFN]-, or granulocyte/macrophage colony-stimulating factor) or against other cytokines (IL-1β, IL-10, IL-12, IL-18, IL-21, IL-23, IL-26, IFN-β, tumor necrosis factor , or transforming growth factor β). These findings suggest that auto-Abs against IL-17A, IL-17F, and IL-22 may cause CMC in patients with APS-I.
Author(s): Puel A, Natividad A, Chrabieh M, Döffinger R, Barcenas-Morales G, Picard C, Ouachée-Chardin M, Toulon A, Bustamante J, Al-Muhsen S, Arkwright PD, Costigan C, McConnell V, Cant AJ, Abinun M, Polak M, Bougnères PF, Kumararatne D, Blanche S, Fischer AM, Bodemer C, Abel L, Lilic D, Casanova JL
Publication type: Article
Journal: Journal of Experimental Medicine
Print publication date: 15/02/2010
ISSN (print): 0022-1007
ISSN (electronic): 1540-9538
Publisher: Rockefeller University Press
Notes: D. Lilic and J.-L. Casanova have shared senior authorship of this article.
See also Editorial from this journal issue: Maxmen, A. Antibodies attack IL-17. Journal of Experimental Medicine 2010, 207(2): 264-265.
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