ArticleClinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology2025
Circulating Food Allergen-Specific Antibodies, Beyond IgG4, Are Elevated in Eosinophilic Esophagitis.
Article in Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Pathways of Epithelial Barrier Breakdown and Remodeling in Esophageal Organoids by Commonly Used Surfactants.Allergy · 2026Article
- Restoring balance in atopic disorders: insights into type 2 immunity and chronic inflammation.Frontiers in immunology · 2026Review
- Esophageal tissue immunoglobulin G4 in eosinophilic esophagitis and its correlation with serum-specific IgG4 to six foods.Frontiers in allergy · 2026Article
- Analysis of food-specific IgE, IgG, and IgG4 antibodies in children with allergic diseases.American journal of translational research · 2026Article
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15 authors.
Funding
Abstract
introductionEosinophilic esophagitis (EoE) is a chronic inflammatory condition with an incompletely understood immuno-pathogenesis involving a T2 response. EoE is triggered by food allergens although, unlike IgE-mediated allergies, it exhibits high IgG4 levels in oesophageal biopsies and in circulation. We investigated whether other antibody isotypes specific for food allergens are elevated in EoE and vary with disease activity.
methodsPlasma samples from patients with active EoE (n = 51), inactive EoE (n = 82) and non-EoE controls (n = 14) were analysed for food-specific IgG and IgA subclasses against casein, whey, wheat, egg and individual cow's milk allergens by ELISA. α-lactalbumin (Bos d 4)- and β-lactoglobulin (Bos d 5)-specific B cells were measured by flow cytometry in a subset of patients.
resultsFood allergen-specific antibodies in the plasma varied across EoE subgroups and non-EoE controls. Elevated IgG4 in EoE patients confirmed a strong antibody response to food allergens, including casein, wheat and egg. α
conclusionOur findings reveal distinct antibody profiles in EoE plasma, with elevated IgG and IgA subclasses beyond IgG4, highlighting a complex immune response to food allergens. Differential antibody responses support their clinical relevance in dietary management strategies, while the absence of allergen-specific B cells in circulation likely restricts antibody production to the inflamed oesophagus. Future research should explore whether these antibody profiles can guide personalised treatment and novel therapeutic targets in EoE.
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