Identification of coeliac disease triggering glutenin peptides in adults

Scandinavian Journal of Gastroenterology
Suzanne C DonnellyP J Ciclitira

Abstract

Coeliac disease affects approximately 1% of Northern American and European populations. It is caused by an inappropriate immune response to dietary gluten. Gluten comprises of two major protein fractions: gliadins and glutenins. Glutenins have recently been found to be toxic to coeliac individuals. Proliferation assays suggest in some but not all paediatric coeliac individuals there may be immunological stimulation with high molecular weight (HMW) glutenins. Less evidence pertains to low molecular weight (LMW) glutenins. The aim is to assess adaptive, T-cell driven, and innate immune response in adult coeliac individuals towards HMW glutenin peptide, glut04, and LMW glutenin peptide, glt156. Coeliac patients were recruited attending endoscopy for routine monitoring. Adaptive immune response towards glut04 and glt156 was measured by proliferation assays and measurement of interferon-γ secretion in 28 T-cell lines. The innate immune response was assessed by measurement of enterocyte cell height (ECH) in coeliac small intestinal biopsies following overnight incubation in organ culture chambers in a further nine individuals. There were 3/28 and 2/28 positive proliferation results using gluten-sensitive T-cells with glut04 and glt15...Continue Reading

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Citations

Jul 8, 2021·Journal of Pediatric Gastroenterology and Nutrition·Reidun StenbergArmin Alaedini

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