Evidence map›Paper›PMID 40670389›Full record

ArticleNPJ biofilms and microbiomes2025

Environmental factors drive bacterial degradation of gastrointestinal mucus.

Sandra L Arias, Ellen W van Wijngaarden, Diana Balint, Joshua Jones, Carl C Crawford, Parul J Shukla, Meredith Silberstein, Ilana L Brito

Abstract read
In one paragraph

Article in NPJ biofilms and microbiomes, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Adaptation ofmSystems · 2026
    Article
  2. Review
  3. Review
  4. Review
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

8 authors.

Sandra L AriasMeinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA.
Ellen W van WijngaardenMechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA.
Diana BalintDepartment of Microbiology, Cornell University, Ithaca, NY, USA.
Joshua JonesDepartment of Microbiology and Immunology, Cornell University, Ithaca, NY, USA.
Carl C CrawfordDivision of Gastroenterology and Hepatology, Weill Cornell Medicine, New York, NY, USA.
Parul J ShuklaNorthwell, New Hyde Park, NY 11040 & Department of Surgery at Zucker School of Medicine, Manhasset, NY, USA.
Meredith SilbersteinMechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA.
Ilana L BritoMeinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA. ibrito@cornell.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mucus layer lining the gastrointestinal tract is essential for gut health, providing a protective barrier while maintaining host-microbiome symbiosis. Its disruption is a hallmark of diseases like ulcerative colitis, yet how bacterial activity impacts mucus structure remains unclear. We developed a method to collect human-cell-derived mucus that mimics human colonic mucus and used it to investigate mucus degradation by commensal bacteria. Glycan foraging by species such as Bacteroides thetaiotaomicron and Bacteroides fragilis did not alter mucus rheology. Instead, secreted proteases were the primary drivers of degradation. Protease activity by B. fragilis and Bifidobacterium longum subsp. infantis was nutrient-dependent, while Enterococcus faecalis was further influenced by oxygen. Under oxidative stress, E. faecalis upregulated carbohydrate metabolism and virulence genes. These results reveal that bacterial mucus degradation is context-dependent and shaped by environmental factors. Our findings underscore the value of human cell-derived mucus models for understanding bacteria-mucus interactions in health and disease.

Indexed as

BacteriaGastrointestinal MicrobiomeGastrointestinal TractIntestinal MucosaMucusBacterial ProteinsBacteroides fragilisHumansOxidative StressPeptide HydrolasesBacterial ProteinsPeptide Hydrolases

Identifiers

PMID40670389
PMCPMC12267731

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

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.