Evidence map›Paper›PMID 31873206›Full record

ArticleNature microbiology2020

Diet-derived galacturonic acid regulates virulence and intestinal colonization in enterohaemorrhagic Escherichia coli and Citrobacter rodentium.

Angel G Jimenez, Melissa Ellermann, Wade Abbott, Vanessa Sperandio

Open access · greenAbstract read
In one paragraph

Article in Nature microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

45 citing papers in PubMed, 66 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. EnterohemorrhagiciScience · 2026
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Infection and immunity · 2025
    Review
  16. Article
  17. Article
  18. Nutrition ofEcoSal Plus · 2024
    Review
  19. Article
  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

4 authors at 3 institutions in 2 countries.

Angel G JimenezDepartment of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Melissa EllermannDepartment of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Wade AbbottLethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, Alberta, Canada.ORCID http://orcid.org/0000-0003-4893-5799
Vanessa SperandioDepartment of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX, USA. vanessa.sperandio@utsouthwestern.edu.ORCID http://orcid.org/0000-0003-0819-7904
The University of Texas Southwestern Medical Center · USSouthwestern Medical Center · USUniversity of Lethbridge · CA

Funding

MOLECULAR MICROBIOLOGY TRAINING GRANTT32AI007520 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI Julie K Pfeiffer · 1997 to 2026
$7.0M
Quorum sensing regulation of EHEC virulence genesR01AI053067 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI SPERANDIO, VANESSA · 2003 to 2017
$6.3M
Quorum Sensing Regulation of EHEC Virulence GenesR37AI053067 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI VANESSA SPERANDIO · 2018 to 2026
$5.3M
SdiA regulation of EHEC virulenceR01AI077613 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI SPERANDIO, VANESSA · 2009 to 2017
$3.4M
Tryptophan derivatives in EHEC pathogenesisR01AI114511 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI SPERANDIO, VANESSA · 2015 to 2019
$2.3M
Sugar Regulation of EHEC virulenceR01AI105135 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI SPERANDIO, VANESSA · 2013 to 2016
$1.6M
Sugar Regulation of EHEC virulence - A1R56AI105135 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI MARESSO, ANTHONY W, SPERANDIO, VANESSA · 2018 to 2018
$499k
Branched Chain Amino Acid Metabolism During AnthraxR21AI146481 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI MARESSO, ANTHONY W · 2019 to 2020
$440k
NIAID NIH HHS R01 AI053067NIAID NIH HHS R01 AI077613NIAID NIH HHS R01 AI105135NIAID NIH HHS R01 AI114511NIAID NIH HHS R21 AI146481NIAID NIH HHS R37 AI053067NIAID NIH HHS R56 AI105135NIAID NIH HHS T32 AI007520
6 · The paper itself

Abstract

Enteric pathogens sense the complex chemistry within the gastrointestinal tract to efficiently compete with the resident microbiota and establish a colonization niche. Here, we show that enterohaemorrhagic Escherichia coli and Citrobacter rodentium, its surrogate in a mouse infection model, sense galacturonic acid to initiate a multi-layered program towards successful mammalian infection. Galacturonic acid utilization as a carbon source aids the initial pathogen expansion. The main source of galacturonic acid is dietary pectin, which is converted to galacturonic acid by the prominent member of the microbiota, Bacteroides thetaiotamicron. This is regulated by the ExuR transcription factor. However, galacturonic acid is also sensed as a signal through ExuR to modulate the expression of the genes encoding a molecular syringe known as a type III secretion system, leading to infectious colitis and inflammation. Galacturonic acid acts as both a nutrient and a signal directing the exquisite microbiota-pathogen relationships within the gastrointestinal tract. This work highlights that differential dietary sugar availability influences the relationship between the microbiota and enteric pathogens, as well as disease outcomes.

Indexed as

AnimalsBacteroides thetaiotaomicronCitrobacter rodentiumDietDisease Models, AnimalEnterobacteriaceae InfectionsEnterohemorrhagic Escherichia coliEscherichia coli InfectionsFemaleGastrointestinal MicrobiomeGenes, BacterialHeLa CellsHexuronic AcidsHost-Pathogen InteractionsHumansMicegalacturonic acidHexuronic AcidsPectins

Identifiers

PMID31873206
PMCPMC6992478
OpenAlexW2996199498

What OpenQuestion holds

Textmetadata
LicenceTDM
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.