Evidence map›Paper›PMID 32385500›Full record

ArticleInflammatory bowel diseases2020

Muc5ac Expression Protects the Colonic Barrier in Experimental Colitis.

Kristine E Olli, Caroline Rapp, Lauren O'Connell, Colm B Collins, Eoin N McNamee, Owen Jensen, Paul Jedlicka, Kristen C Allison, Matthew S Goldberg, Mark E Gerich and 5 more

Open access · bronzeAbstract read
In one paragraph

Article in Inflammatory bowel diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Frontiers in microbiology · 2025
    Article
  8. Acta pharmaceutica Sinica. B · 2024
    Article
  9. Article
  10. Article
  11. Review
  12. Polysaccharide fromNutrients · 2023
    Article
  13. Review
  14. Article
  15. Chloride channel accessory 1 gene deficiency causes selective loss of mucus production in a new pig model.American journal of physiology. Lung cellular and molecular physiology · 2022
    Article
  16. Effect of Antimicrobial Prophylaxis onComparative medicine · 2022
    Article
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 3 institutions in 2 countries.

Kristine E OlliDepartment of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA.
Caroline RappDepartment of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA.
Lauren O'ConnellSchool of Medicine, Conway Institute, University College Dublin, Belfield, Dublin, Ireland.
Colm B CollinsMucosal Inflammation Program, University of Colorado School of Medicine, Aurora, Colorado, USA.
Eoin N McNameeDepartment of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA.
Owen JensenDepartment of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA.
Paul JedlickaDepartment of Pathology, University of Colorado School of Medicine, Aurora, Colorado, USA.
Kristen C AllisonDepartment of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA.
Matthew S GoldbergMucosal Inflammation Program, University of Colorado School of Medicine, Aurora, Colorado, USA.
Mark E GerichDepartment of Medicine, Division of Gastroenterology and Hepatology, University of Colorado School of Medicine, Aurora, Colorado, USA.
Daniel N FrankDepartment of Medicine, Division of Infectious Diseases, University of Colorado School of Medicine, Aurora, Colorado, USA.
Diana IrDepartment of Medicine, Division of Infectious Diseases, University of Colorado School of Medicine, Aurora, Colorado, USA.
Charles E RobertsonDepartment of Medicine, Division of Infectious Diseases, University of Colorado School of Medicine, Aurora, Colorado, USA.
Christopher M EvansDepartment of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA.
Carol M AherneDepartment of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado, USA.
University of Colorado Denver · USUniversity College Dublin · IENational University of Ireland, Maynooth · IE

Funding

Role of Mucin in Lung Homeostasis and PathophysiologyR01HL080396 · NHLBI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Christopher M Evans · 2009 to 2026
$8.6M
Mechanisms of lung macrophage programming by MUC5B during health and diseaseR01HL130938 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI EVANS, CHRISTOPHER M · 2016 to 2025
$5.2M
microRNA-dependent regulation of intestinal T-cells²R01DK111856 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI DE ZOETEN, EDWIN FULCO · 2018 to 2022
$1.7M
Netrin-1 Regulation of T cell trafficking in chronic intestinal inflammationK01DK099485 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI AHERNE, CAROL · 2013 to 2017
$621k
Epithelial A2B-mediated Muc5ac expression protects the intestinal barrier during inflammation.R03DK114545 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI AHERNE, CAROL · 2018 to 2019
$156k
NHLBI NIH HHS R01 HL080396NHLBI NIH HHS R01 HL130938NIDDK NIH HHS K01 DK099485NIDDK NIH HHS R01 DK111856NIDDK NIH HHS R03 DK114545
6 · The paper itself

Abstract

backgroundThe mucus gel layer (MGL) lining the colon is integral to exclusion of bacteria and maintaining intestinal homeostasis in health and disease. Some MGL defects allowing bacteria to directly contact the colonic surface are commonly observed in ulcerative colitis (UC). The major macromolecular component of the colonic MGL is the secreted gel-forming mucin MUC2, whose expression is essential for homeostasis in health. In UC, another gel-forming mucin, MUC5AC, is induced. In mice, Muc5ac is protective during intestinal helminth infection. Here we tested the expression and functional role of MUC5AC/Muc5ac in UC biopsies and murine colitis.

methodsWe measured MUC5AC/Muc5ac expression in UC biopsies and in dextran sulfate sodium (DSS) colitis. We performed DSS colitis in mice deficient in Muc5ac (Muc5ac-/-) to model the potential functional role of Muc5ac in colitis. To assess MGL integrity, we quantified bacterial-epithelial interaction and translocation to mesenteric lymph nodes. Antibiotic treatment and 16S rRNA gene sequencing were performed to directly investigate the role of bacteria in murine colitis.

resultsColonic MUC5AC/Muc5ac mRNA expression increased significantly in active UC and murine colitis. Muc5ac-/- mice experienced worsened injury and inflammation in DSS colitis compared with control mice. This result was associated with increased bacterial-epithelial contact and translocation to the mesenteric lymph nodes. However, no change in microbial abundance or community composition was noted. Antibiotic treatment normalized colitis severity in Muc5ac-/- mice to that of antibiotic-treated control mice.

conclusionsMUC5AC/Muc5ac induction in the acutely inflamed colon controls injury by reducing bacterial breach of the MGL.

Indexed as

AnimalsBacteriaColitisColitis, UlcerativeColonDextran SulfateDisease Models, AnimalHomeostasisHumansIntestinal MucosaMiceMucin 5ACProtective FactorsRNA, Ribosomal, 16SDextran SulfateMucin 5ACRNA, Ribosomal, 16Sbacteriaepitheliummucinulcerative colitis

Identifiers

PMID32385500
PMCPMC7441107
OpenAlexW3023319817

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.