Evidence map›Paper›PMID 26781849›Full record

ArticleProbiotics and antimicrobial proteins2012

Upregulation of Intestinal Mucin Expression by the Probiotic Bacterium E. coli Nissle 1917.

Mohamed M Hafez

Abstract read
PubMed Publisher
In one paragraph

Article in Probiotics and antimicrobial proteins, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.5field-weighted citation impact, top 28% 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

14 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. The interplay between probiotics and mast cells in gut inflammation: a mini-review.Frontiers in cellular and infection microbiology · 2026
    Review
  3. Article
  4. Gut Goo: Physiology, Diet, and Therapy of Intestinal Mucus and Biofilms in Gastrointestinal Health and Disease.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2025
    Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. KeepingDisease models & mechanisms · 2019
    Article
  13. Review
  14. Probiotics and the Gut Immune System: Indirect Regulation.Probiotics and antimicrobial proteins · 2018
    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

1 author at 1 institution in 1 country.

Mohamed M HafezDepartment of Microbiology, College of Pharmacy, Taif University, Taif, Western Region, KSA. amn1971@lycos.com.
Taif University · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The probiotic E. coli Nissle 1917 (EcN) has been reported to have various health benefits; however, very little is known about their underlying mechanisms. In this regard, the present study aimed to elucidate the effect of the bacterium on mucin production by intestinal epithelial cells. Incubation of HT-29 cells with EcN lead to a contact time-dependent rise in mRNA levels of the MUC2, MUC3, MUC5AC, and MUC5A. The expression was markedly higher with MUC5AC gene. In most cases, MUC genes expression was more pronounced in polarized cells compared to non-polarized ones. In contrast to MUC3, the basal stimulation of polarized cells brought about markedly higher levels of other tested mucins. Similar but milder results were observed when living EcN was replaced by inactivated bacteria. With exception of MUC3, the conditioned media showed no significant effect on the mRNA level of the tested mucins. The above-mentioned mRNA results were confirmed on protein level using enzyme-linked lectin assay (ELLA) and enzyme-linked immunosorbant assay (ELISA). In contrast to other treatments, basal stimulation of polarized cells showed a growth phase-dependent MUC induction with more prominent effect by stationary-phase bacteria. In contrast to MUC 2 and MUC3, the induction of MUC5AC and MUC5B showed a bacterial count-dependent pattern. In conclusion, EcN was found to stimulate MUC gene expression in HT-29 intestinal cells. This stimulation was more distinct with polarized cells. Such observation may partially interpret some health benefits of the probiotic bacterium including antagonizing pathogen adhesion and protection of the intestinal mucosa.

Indexed as

E. coli Nissle 1917Mucin expressionProbiotic

Identifiers

PMID26781849
OpenAlexW1977378169

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.