Antiendomysial antibody detection in biopsy culture allows avoidance of gluten challenge in celiac children.

Abstract:

OBJECTIVE:Antiendomysial antibody (EMA) production has been induced in vitro by the small bowel mucosa of celiac disease (CD) patients in clinical remission cultured in the presence of gliadin peptides. The aim of the present study was to use this in vitro system to determine whether it could be used to predict the clinical or histologic relapse to gluten challenge in CD children on a gluten-free diet (GFD). METHODS:Enrolled were 32 CD children and adolescents on GFD (group 1), and 80 controls (group 2) who underwent in vitro gliadin challenge. Subsequently, 24 group 1 CD children underwent in vivo gluten challenge to confirm the diagnosis. Biopsy cultures, with and without gliadin, morphometric analysis, immunoglobulin (Ig)A and IgG1 EMA detection, both in sera and culture supernatants, were performed. RESULTS:Of the 32 group 1 CD patients, 23 were IgA EMA positive in culture supernatants. The other nine were IgG1 EMA positive. All 24 children who had in vivo gluten challenge showed clinical or histologic relapse. All culture supernatants from disease controls belonging to group 2 were both IgA and IgG1 EMA negative, irrespective of gliadin challenge. CONCLUSIONS:Organ culture with in vitro gliadin challenge is able to reproduce the results of in vivo challenge. This system could reduce the need for gluten challenge in celiac children.

authors

Bonamico M,Sabbatella L,Di Tola M,Vetrano S,Ferri M,Nenna R,Mariani P,Picarelli A

doi

10.1097/00005176-200502000-00015

subject

Has Abstract

pub_date

2005-02-01 00:00:00

pages

165-9; discussion 122-4

issue

2

eissn

0277-2116

issn

1536-4801

pii

00005176-200502000-00015

journal_volume

40

pub_type

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