Evidence map›Paper›PMID 33465146›Full record

ArticlePLoS pathogens2021

Enhanced biofilm and extracellular matrix production by chronic carriage versus acute isolates of Salmonella Typhi.

Aishwarya Devaraj, Juan F González, Bradley Eichar, Gatan Thilliez, Robert A Kingsley, Stephen Baker, Marc W Allard, Lauren O Bakaletz, John S Gunn, Steven D Goodman

Erratum issuedOpen access · goldAbstract readComparative Study
In one paragraph

Article in PLoS pathogens, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

12 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Fecal Shedding, Antimicrobial Resistance andInternational journal of clinical microbiology · 2024
    Article
  6. Article
  7. Review
  8. Functional role of the biofilm regulator CsgD inFrontiers in cellular and infection microbiology · 2024
    Article
  9. Review
  10. Review
  11. Article
  12. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 5 institutions in 2 countries.

Aishwarya DevarajCenter for Microbial Pathogenesis, Research Institute at Nationwide Children's Hospital, Columbus, Ohio, United States of America.ORCID 0000-0001-8129-7843
Juan F GonzálezCenter for Microbial Pathogenesis, Research Institute at Nationwide Children's Hospital, Columbus, Ohio, United States of America.
Bradley EicharCenter for Microbial Pathogenesis, Research Institute at Nationwide Children's Hospital, Columbus, Ohio, United States of America.
Gatan ThilliezQuadram Institute Bioscience, Norwich, United Kingdom.ORCID 0000-0001-8650-4477
Robert A KingsleyQuadram Institute Bioscience, Norwich, United Kingdom.
Stephen BakerCambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge School of Clinical Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Marc W AllardFood and Drug Administration-FDA, College Park, Maryland, United States of America.
Lauren O BakaletzCenter for Microbial Pathogenesis, Research Institute at Nationwide Children's Hospital, Columbus, Ohio, United States of America.
John S GunnCenter for Microbial Pathogenesis, Research Institute at Nationwide Children's Hospital, Columbus, Ohio, United States of America.ORCID 0000-0003-2848-8346
Steven D GoodmanCenter for Microbial Pathogenesis, Research Institute at Nationwide Children's Hospital, Columbus, Ohio, United States of America.ORCID 0000-0002-3315-9320
Nationwide Children's Hospital · USQuadram Institute · GBUnited States Food and Drug Administration · USUniversity of Cambridge · GBUniversity of East Anglia · GB

Funding

Mechanisms of the Development and Maintenance of Salmonella Gallbladder CarriageR01AI116917 · NIAID · RESEARCH INST NATIONWIDE CHILDREN'S HOSP · PI GUNN, JOHN S, MELANDER, CHRISTIAN COREY · 2015 to 2025
$6.1M
Novel immunotherapeutics for the management of otitis media due to H. influenzaeR01DC011818 · NIDCD · RESEARCH INST NATIONWIDE CHILDREN'S HOSP · PI BAKALETZ, LAUREN O, GOODMAN, STEVEN D · 2011 to 2020
$5.4M
Regulation and role of Salmonella curli during chronic infectionR21AI153752 · NIAID · RESEARCH INST NATIONWIDE CHILDREN'S HOSP · PI GUNN, JOHN S · 2020 to 2021
$424k
Biotechnology and Biological Sciences Research Council BB/R012504/1Biotechnology and Biological Sciences Research Council BBS/E/F/000PR10348Biotechnology and Biological Sciences Research Council BBS/E/F/000PR10349NIAID NIH HHS R01 AI116917NIAID NIH HHS R21 AI153752NIDCD NIH HHS R01 DC011818Wellcome TrustWellcome Trust 215515/Z/19/Z
6 · The paper itself

Abstract

Salmonella Typhi is the primary causative agent of typhoid fever; an acute systemic infection that leads to chronic carriage in 3-5% of individuals. Chronic carriers are asymptomatic, difficult to treat and serve as reservoirs for typhoid outbreaks. Understanding the factors that contribute to chronic carriage is key to development of novel therapies to effectively resolve typhoid fever. Herein, although we observed no distinct clustering of chronic carriage isolates via phylogenetic analysis, we demonstrated that chronic isolates were phenotypically distinct from acute infection isolates. Chronic carriage isolates formed significantly thicker biofilms with greater biomass that correlated with significantly higher relative levels of extracellular DNA (eDNA) and DNABII proteins than biofilms formed by acute infection isolates. Importantly, extracellular DNABII proteins include integration host factor (IHF) and histone-like protein (HU) that are critical to the structural integrity of bacterial biofilms. In this study, we demonstrated that the biofilm formed by a chronic carriage isolate in vitro, was susceptible to disruption by a specific antibody against DNABII proteins, a successful first step in the development of a therapeutic to resolve chronic carriage.

Indexed as

Antibodies, MonoclonalBacterial ProteinsBiofilmsDnaB HelicasesExtracellular MatrixHumansIntegration Host FactorsSalmonella typhiTyphoid FeverAntibodies, MonoclonalBacterial ProteinsDnaB HelicasesIntegration Host Factors

Identifiers

PMID33465146
PMCPMC7815147
OpenAlexW3123729044

What OpenQuestion holds

Textmetadata
LicenceCC0
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.