Evidence map›Paper›PMID 29890970›Full record

ArticleBMC systems biology2018

Escherichia coli B2 strains prevalent in inflammatory bowel disease patients have distinct metabolic capabilities that enable colonization of intestinal mucosa.

Xin Fang, Jonathan M Monk, Nathan Mih, Bin Du, Anand V Sastry, Erol Kavvas, Yara Seif, Larry Smarr, Bernhard O Palsson

Open access · diamondAbstract read
In one paragraph

Article in BMC systems biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

30 citing papers in PubMed, 50 citations in OpenAlex.

  1. Deciphering the Implications ofPathogens (Basel, Switzerland) · 2026
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  3. Structure of theMicrobiology spectrum · 2026
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  6. The role of bacterial metabolism in human gut colonization.International microbiology : the official journal of the Spanish Society for Microbiology · 2025
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  8. Genome characterization of a multi-drug resistantFrontiers in microbiology · 2024
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  9. Article
  10. Article
  11. New Insights on Metabolic Features ofInternational journal of molecular sciences · 2023
    Article
  12. Article
  13. Evidence for Widespread Class II Microcins inApplied and environmental microbiology · 2022
    Article
  14. Role of adherent invasiveWorld journal of clinical cases · 2022
    Review
  15. Article
  16. A curated collection ofGenome research · 2022
    Article
  17. Phylogrouping and characterization ofFrontiers in medicine · 2022
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  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

9 authors at 2 institutions in 2 countries.

Xin FangDepartment of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, 92093, CA, USA.
Jonathan M MonkDepartment of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, 92093, CA, USA.
Nathan MihDepartment of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, 92093, CA, USA.
Bin DuDepartment of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, 92093, CA, USA.
Anand V SastryDepartment of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, 92093, CA, USA.
Erol KavvasDepartment of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, 92093, CA, USA.
Yara SeifDepartment of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, 92093, CA, USA.
Larry SmarrDepartment of Computer Science and Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, 92093, CA, USA.
Bernhard O PalssonDepartment of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, 92093, CA, USA. palsson@ucsd.edu.ORCID 0000-0002-9403-509X
University of California San Diego · USNovo Nordisk Foundation · DK

Funding

Systems Biology Approach to Redefine Susceptibility Testing and Treatment of MDR Pathogens in the Context of Host ImmunityU01AI124316 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI PALSSON, BERNHARD O · 2016 to 2020
$10.2M
NIAID NIH HHS U01 AI124316
6 · The paper itself

Abstract

backgroundEscherichia coli is considered a leading bacterial trigger of inflammatory bowel disease (IBD). E. coli isolates from IBD patients primarily belong to phylogroup B2. Previous studies have focused on broad comparative genomic analysis of E. coli B2 isolates, and identified virulence factors that allow B2 strains to reside within human intestinal mucosa. Metabolic capabilities of E. coli strains have been shown to be related to their colonization site, but remain unexplored in IBD-associated strains.

resultsIn this study, we utilized pan-genome analysis and genome-scale models (GEMs) of metabolism to study metabolic capabilities of IBD-associated E. coli B2 strains. The study yielded three results: i) Pan-genome analysis of 110 E. coli strains (including 53 isolates from IBD studies) revealed discriminating metabolic genes between B2 strains and other strains; ii) Both comparative genomic analysis and GEMs suggested that B2 strains have an advantage in degrading and utilizing sugars derived from mucus glycan, and iii) GEMs revealed distinct metabolic features in B2 strains that potentially allow them to utilize energy more efficiently. For example, B2 strains lack the enzymes to degrade amadori products, but instead rely on neighboring bacteria to convert these substrates into a more readily usable and potentially less sought after product.

conclusionsTaken together, these results suggest that the metabolic capabilities of B2 strains vary significantly from those of other strains, enabling B2 strains to colonize intestinal mucosa.The results from this study motivate a broad experimental assessment of the nutritional effects on E. coli B2 pathophysiology in IBD patients.

Indexed as

Escherichia coliGenomicsHumansInflammatory Bowel DiseasesIntestinal MucosaInflammatory bowel diseaseMetabolic modelingPan-genome analysis

Identifiers

PMID29890970
PMCPMC5996543
OpenAlexW2808583075

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.