Cited by 96Gastrointestinal motility and disordersInflammatory Bowel DiseaseGut microbiota and health

Luminal Cysteine-Proteases Degrade Colonic Tight Junction Structure and Are Responsible for Abdominal Pain in Constipation-Predominant IBS

Annaházi, Anita, Ferrier, Laurent, Bézirard, Valerie, Lévêque, Mathilde, Eutamène, Helene, Ait-Belgnaoui, Afifa, Coëffier, Moïse, Ducrotté, Philippe +11 more·2013·American Journal of Gastroenterology

Abstract

OBJECTIVES: Luminal serine-proteases lead to increased colonic paracellular permeability and visceral hypersensitivity in patients with diarrhea-predominant irritable bowel syndrome (IBS-D). Other proteases, namely cysteine-proteases (CPs), increase airway permeability by digesting epithelial tight junction proteins. In this study, we focused on constipation-predominant IBS (IBS-C) and we aimed to (i) evaluate CP levels in two cohorts of IBS patients, (ii) test if IBS-C fecal supernatant (FSN) affects permeability, and visceral sensitivity after repeated administrations in mice, and (iii) evaluate occludin expression in IBS-C colonic biopsies. METHODS: Fecal CP activity was determined using selective substrate and inhibitor (E64). The effect of papain, as positive control, and IBS-C FSN administrations were evaluated on colonic paracellular permeability and mucosal occludin levels in mice and T84 monolayers. Occludin protein levels were evaluated in IBS-C colonic biopsies. Sensitivity to colorectal distension (CRD) was measured after repeated administrations of IBS-C FSN. RESULTS: We found in a subset of IBS-C patients an enhanced fecal CP activity, in comparison with healthy controls and IBS-D patients. CP activity levels positively correlated with disease severity and abdominal pain scoring. This association was confirmed by receiver operating characteristic curve analysis. In mice, repeated application of IBS-C FSN into colon triggered increased permeability, linked to the enzymatic degradation of occludin, and was associated with enhanced visceral sensitivity to CRD. Finally, occludin levels were found decreased in colonic biopsies from IBS-C patients, and IBS-C FSNs were able to degrade recombinant human occludin in vitro. All these effects were abolished by preincubation of IBS-C FSN with a CP inhibitor, E64. CONCLUSIONS: These data suggest that luminal CPs may represent a new factor contributing to the genesis of symptoms in IBS.

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Crossref · 10.1038/ajg.2013.152

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  • Based on the study of fecal proteases from IBS-C patients, enhancement of abdominal pain did not appear to be due to direct excitatory actions of proteases on neuronal PARs.

    “Based on the study of fecal proteases from IBS-C patients, enhancement of abdominal pain did not appear to be due to direct excitatory actions of proteases on neuronal PARs.160”
  • Intracolonic administration of fecal supernatants from IBS-D and IBS-C patients increased the visceromotor response to distension, with evidence of both allodynia and hyperalgesia.

    “Intracolonic administration of fecal supernatants from IBS-D and IBS-C patients increased the visceromotor response to distension, with evidence of both allodynia and hyperalgesia.159,160”
  • Intracolonic administration of cysteine proteases within IBS-C fecal supernatants to mice increased colonic permeability and led to degradation of occludin, which in turn led to increased visceral pain.

    “Instead, intracolonic administration of cysteine proteases within IBS-C fecal supernatants to mice increased colonic permeability and led to degradation of occluding, which in turn led to increased visceral pain.”
  • Mucosal biopsies from IBS-C patients displayed evidence of epithelial occludin degradation compared to biopsies from healthy controls.

    “Mucosal biopsies from IBS-C patients also displayed evidence of epithelial occludin degradation compared to biopsies from healthy controls.160”

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Authors
Annaházi, A., Ferrier, L., Bézirard, V., Lévêque, M., Eutamène, H., Ait-Belgnaoui, A., Coëffier, M., Ducrotté, P., Róka, R., Inczefi, O., Gecse, K., Rosztóczy, A., Molnár, T., Ringel-Kulka, T., Ringel, Y., Piche, T., Theodorou, V., Wittmann, T., & Bueno, L.
Affiliations
  • University of Szeged (HU)
  • Ecole d'Ingénieurs de PURPAN (FR)
  • University of North Carolina at Chapel Hill (US)
  • Inserm (FR)
Corresponding author
Bueno, Lionel
Venue
American Journal of Gastroenterology
Published
2013-08
Volume
108
Issue
8
Pages
1322-1331
ISSN
0002-9270 (ISSN-L)
OpenAlex
W2011776892
Cited by
96
References
44
Citations by year
2026: 2 · 2025: 5 · 2024: 8 · 2023: 9 · 2022: 10 · 2021: 8 · 2020: 7 · 2019: 7 · 2018: 4 · 2017: 7 · 2016: 10 · 2015: 5 · 2014: 13 · 2013: 1
FWCI
9.13
Type
journal article
Language
en
Open access
closed
Locations
  • The American Journal of Gastroenterology (publishedVersion)
  • PubMed (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • HAL (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion)
Topics
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
cysteine protease, irritable bowel syndrome with constipation, tight junctions, visceral hypersensitivity, abdominal pain, fecal supernatants, colorectal distension, papain, disease severity
MeSH terms
Adult, Analysis of Variance, Animals, Biopsy, Cells, Cultured, Constipation, Electromyography, Feces, Female, Humans, Intestinal Absorption, Male, Mice, Inbred C57BL, Middle Aged, Pain Measurement, Surveys and Questionnaires, ROC Curve, Blotting, Western, Abdominal Pain, Case-Control Studies, Polymerase Chain Reaction, Tight Junctions, Irritable Bowel Syndrome, Mice, Cysteine Proteases, Occludin

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