Evidence map›Paper›PMID 22363626›Full record

ArticlePloS one2012

BarA-UvrY two-component system regulates virulence of uropathogenic E. coli CFT073.

Senthilkumar Palaniyandi, Arindam Mitra, Christopher D Herren, C Virginia Lockatell, David E Johnson, Xiaoping Zhu, Suman Mukhopadhyay

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

31 citing papers in PubMed, 54 citations in OpenAlex.

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  19. Metabolic Adaptations of UropathogenicFrontiers in cellular and infection microbiology · 2017
    Review
  20. 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

7 authors at 4 institutions in 1 country.

Senthilkumar PalaniyandiVirginia-Maryland Regional College of Veterinary Medicine, University of Maryland, College Park, Maryland, United States of America.
Arindam Mitra
Christopher D Herren
C Virginia Lockatell
David E Johnson
Xiaoping Zhu
Suman Mukhopadhyay
University of Maryland, Baltimore · USUniversity of Maryland, College Park · USVirginia–Maryland College of Veterinary Medicine · USArizona State University · US

Funding

Transcytosis of IgG in Genital InfectionsR01AI065892 · NIAID · UNIV OF MARYLAND, COLLEGE PARK · PI ZHU, XIAOPING · 2007 to 2010
$1.2M
NIAID NIH HHS R01 AI065892NIAID NIH HHS R01 AI65892
6 · The paper itself

Abstract

Uropathogenic Escherichia coli (UPEC), a member of extraintestinal pathogenic E. coli, cause ∼80% of community-acquired urinary tract infections (UTI) in humans. UPEC initiates its colonization in epithelial cells lining the urinary tract with a complicated life cycle, replicating and persisting in intracellular and extracellular niches. Consequently, UPEC causes cystitis and more severe form of pyelonephritis. To further understand the virulence characteristics of UPEC, we investigated the roles of BarA-UvrY two-component system (TCS) in regulating UPEC virulence. Our results showed that mutation of BarA-UvrY TCS significantly decreased the virulence of UPEC CFT073, as assessed by mouse urinary tract infection, chicken embryo killing assay, and cytotoxicity assay on human kidney and uroepithelial cell lines. Furthermore, mutation of either barA or uvrY gene reduced the production of hemolysin, lipopolysaccharide (LPS), proinflammatory cytokines (TNF-α and IL-6) and chemokine (IL-8). The virulence phenotype was restored similar to that of wild-type by complementation of either barA or uvrY gene in trans. In addition, we discussed a possible link between the BarA-UvrY TCS and CsrA in positively and negatively controlling virulence in UPEC. Overall, this study provides the evidences for BarA-UvrY TCS regulates the virulence of UPEC CFT073 and may point to mechanisms by which virulence regulations are observed in different ways may control the long-term survival of UPEC in the urinary tract.

Indexed as

Signal TransductionAnimalsBiological AssayCell DeathCell LineCell MovementChick EmbryoCytokinesDisease Models, AnimalDown-RegulationEpithelial CellsEscherichia coli ProteinsGene DeletionHemolysin ProteinsHemolysisHumansbarA protein, E coliCytokinesEscherichia coli ProteinsHemolysin ProteinsLipopolysaccharidesMembrane ProteinsPhosphotransferasesTranscription FactorsUvrY protein, E coli

Identifiers

PMID22363626
PMCPMC3283629
OpenAlexW2013563671

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.