Cited by 70Celiac Disease Research and ManagementGut microbiota and healthGastrointestinal motility and disorders

Differences in gluten metabolism among healthy volunteers, coeliac disease patients and first-degree relatives

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Caminero, Alberto, Nistal, Esther, Herrán, Alexandra R., Pérez-Andrés, Jénifer, Ferrero, Miguel A., Vaquero Ayala, Luis, Vivas, Santiago, Ruiz de Morales, José M. G. +2 more·2015·British Journal of Nutrition

Abstract

Coeliac disease (CD) is an immune-mediated enteropathy resulting from exposure to gluten in genetically predisposed individuals. Gluten proteins are partially digested by human proteases generating immunogenic peptides that cause inflammation in patients carrying HLA-DQ2 and DQ8 genes. Although intestinal dysbiosis has been associated with patients with CD, bacterial metabolism of gluten has not been studied in depth thus far. The aim of this study was to analyse the metabolic activity of intestinal bacteria associated with gluten intake in healthy individuals, CD patients and first-degree relatives of CD patients. Faecal samples belonging to twenty-two untreated CD patients, twenty treated CD patients, sixteen healthy volunteers on normal diet, eleven healthy volunteers on gluten-free diet (GFD), seventy-one relatives of CD patients on normal diet and sixty-nine relatives on GFD were tested for several proteolytic activities, cultivable bacteria involved in gluten metabolism, SCFA and the amount of gluten in faeces. We detected faecal peptidasic activity against the gluten-derived peptide 33-mer. CD patients showed differences in faecal glutenasic activity (FGA), faecal tryptic activity (FTA), SCFA and faecal gluten content with respect to healthy volunteers. Alterations in specific bacterial groups metabolising gluten such as Clostridium or Lactobacillus were reported in CD patients. Relatives showed similar parameters to CD patients (SCFA) and healthy volunteers (FTA and FGA). Our data support the fact that commensal microbial activity is an important factor in the metabolism of gluten proteins and that this activity is altered in CD patients.

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  • An increase in proteolytic activity towards gluten proteins has been observed in the duodenum and feces of celiac disease patients.

    “an increase in proteolytic activity towards gluten proteins has been observed in the duodenum and feces of CeD patients.41,42”

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  1. Caminero A, Nistal E, Herrán A, et al. (2013) Gluten metabolism in humans: involvement of the gut microbiota. In Whole Wheat and Rice in Disease pp. 157-170 [RR Watson, VR Preedy and S Zibadi, editors]. Amsterdam: Elsevier.

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Authors
Caminero, A., Nistal, E., Herrán, A. R., Pérez-Andrés, J., Ferrero, M. A., Vaquero Ayala, L., Vivas, S., Ruiz de Morales, J. M. G., Albillos, S. M., & Casqueiro, F. J.
Affiliations
  • Universidad de León (ES)
  • Hospital Universitario de León (ES)
  • Instituto de Biotecnología de León (ES)
Corresponding author
Caminero, Alberto
Venue
British Journal of Nutrition
Published
2015-08-26
Volume
114
Issue
8
Pages
1157-1167
ISSN
  • 0007-1145 (ISSN-L)
  • 1475-2662
OpenAlex
W1841699601
Cited by
70
References
40
Citations by year
2025: 7 · 2024: 7 · 2023: 8 · 2022: 8 · 2021: 8 · 2020: 9 · 2019: 11 · 2018: 3 · 2017: 7 · 2016: 2
FWCI
4.15
Type
journal article
Language
en
Open access
Locations
  • British Journal Of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ministerio de Educación, Cultura y Deporte
  • Junta de Castilla y León
  • Instituto de Salud Carlos III (FIS PI10/02447)
  • European Social Fund
Topics
  • Health Sciences › Medicine › Gastroenterology › Celiac Disease Research and Management
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
celiac disease, intestinal bacteria, tryptic activity, short-chain fatty acids, gluten-free diet, first-degree relatives, Clostridium, Lactobacillus, gut dysbiosis
MeSH terms
Bacillota, Adolescent, Adult, Alleles, Caproates, Celiac Disease, Feces, Glutens, HLA-DQ Antigens, Humans, Intestinal Mucosa, Intestines, Middle Aged, Pentanoic Acids, Propionates, Acetic Acid, Butyric Acid, Proteobacteria, Actinobacteria, Diet, Gluten-Free, Young Adult, Healthy Volunteers

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