Abstract
Background: Dermatitis herpetiformis (DH) is a rare gluten-induced skin disorder characterized predominantly by IgA autoantibodies against endomysium, tissue transglutaminase (TG2/tTG), epidermal transglutaminase (TG3/eTG) and deamidated gliadin. To date, circulating autoantibody reactivity has not been systematically described. Objectives: Characterization of serum reactivities in DH. Methods: This multicentre international study analysed sera from 242 patients with DH taken at the time of initial diagnosis. DH-specific IgA and IgG serum autoantibodies were analysed by indirect immunofluorescence (IF) on monkey oesophagus, and by enzyme-linked immunosorbent assay (ELISA) based on recombinant TG2/tTG, TG3/eTG and deamidated gliadin (GAF3X). Results: IgA indirect IF microscopy on monkey oesophagus revealed the highest reactivity (84.3%; specificity 100%) followed by IgA TG2/tTG ELISA (78.5%, specificity 99.0%), IgA TG3/eTG ELISA (72.7%, specificity 95.0%) and IgA GAF3X ELISA (69.0%, specificity 98.5%). Conclusions: Serum IgA and IgG autoantibodies against endomysium, TG2/tTG, TG3/eTG and deamidated gliadin are highly prevalent in DH. Indirect IF microscopy on monkey oesophagus (IgA) provides the highest diagnostic accuracy that can be further enhanced by 4.5% when combined with IgA TG2/tTG ELISA.
| Original language | English |
|---|---|
| Journal | Clinical and Experimental Dermatology |
| Volume | 49 |
| Issue number | 1 |
| Pages (from-to) | 53-57 |
| Number of pages | 5 |
| ISSN | 0307-6938 |
| DOIs | |
| Publication status | Published - 19.12.2023 |
Funding
The study was supported by Deutsche Forschungsgemeinschaft through the Research Training Group 1727 Modulation of Autoimmunity (to F.H.) and structural funding through the Excellence Cluster 2167 Precision Medicine in Chronic Inflammation (to E.S. and D.Z.). The ELISA and immunofluorescence tests were provided free of charge by Euroimmun or for a reduced price by Immundiagnostik.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Research Areas and Centers
- Academic Focus: Center for Infection and Inflammation Research (ZIEL)
- Centers: Center for Research on Inflammation of the Skin (CRIS)
DFG Research Classification Scheme
- 2.22-19 Dermatology
- 2.21-05 Immunology
Fingerprint
Dive into the research topics of 'Serum reactivity in dermatitis herpetiformis: an international multicentre study'. Together they form a unique fingerprint.Projects
- 1 Finished
-
DFG RTG 1727: Modulation of Autoimmunity
Zillikens, D. (Speaker, Coordinator), Ehlers, M. (Project Staff), Hölscher, C. (Project Staff), Kalies, K. (Project Staff), Köhl, J. (Project Staff), Lamprecht, P. (Project Staff), Laskay, T. (Project Staff), Ludwig, R. (Project Staff), Manz, R. (Project Staff), Müller, A. (Project Staff), Petersen, F. (Project Staff), Schmidt, E. (Project Staff), Seeger, K. (Project Staff), Westermann, J. (Project Staff) & Yu, X. (Project Staff)
01.04.11 → 31.12.20
Project: DFG Joint Research › DFG Research Training Groups (RTG)
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