Evidence map›Paper›PMID 21189321›Full record

ArticleInfection and immunity2011

Full virulence of Pseudomonas aeruginosa requires OprF.

Laurène Fito-Boncompte, Annelise Chapalain, Emeline Bouffartigues, Hichem Chaker, Olivier Lesouhaitier, Gwendoline Gicquel, Alexis Bazire, Amar Madi, Nathalie Connil, Wilfried Véron and 10 more

Abstract read
In one paragraph

Article in Infection and immunity, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed
4.2field-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

94 citing papers in PubMed, 158 citations in OpenAlex.

  1. Trial
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  15. Massively parallel mutant selection identifies genetic determinants ofbioRxiv : the preprint server for biology · 2023
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34 more citing papers are in PubMed but not listed here.

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

20 authors at 7 institutions in 3 countries.

Laurène Fito-BoncompteLaboratoire de Microbiologie du Froid, Signaux et Micro-Environnement, 55 rue St. Germain, 27000 Evreux, France.
Annelise Chapalain
Emeline Bouffartigues
Hichem Chaker
Olivier Lesouhaitier
Gwendoline Gicquel
Alexis Bazire
Amar Madi
Nathalie Connil
Wilfried Véron
Laure Taupin
Bertrand Toussaint
Pierre Cornelis
Qing Wei
Koki Shioya
Eric Déziel
Marc G J Feuilloley
Nicole Orange
Alain Dufour
Sylvie Chevalier
Université de Rouen Normandie · FRLaboratoire de Biotechnologie et Chimie Marines · FRTranslational Innovation in Medicine and Complexity · FRVrije Universiteit Brussel · BEArmand Frappier Museum · CAInstitut National de la Recherche Scientifique · CAUniversité de Bretagne Sud · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

OprF is a general outer membrane porin of Pseudomonas aeruginosa, a well-known human opportunistic pathogen associated with severe hospital-acquired sepsis and chronic lung infections of cystic fibrosis patients. A multiphenotypic approach, based on the comparative study of a wild-type strain of P. aeruginosa, its isogenic oprF mutant, and an oprF-complemented strain, showed that OprF is required for P. aeruginosa virulence. The absence of OprF results in impaired adhesion to animal cells, secretion of ExoT and ExoS toxins through the type III secretion system (T3SS), and production of the quorum-sensing-dependent virulence factors pyocyanin, elastase, lectin PA-1L, and exotoxin A. Accordingly, in the oprF mutant, production of the signal molecules N-(3-oxododecanoyl)-l-homoserine lactone and N-butanoyl-l-homoserine lactone was found to be reduced and delayed, respectively. Pseudomonas quinolone signal (PQS) production was decreased, while its precursor, 4-hydroxy-2-heptylquinoline (HHQ), accumulated in the cells. Taken together, these results show the involvement of OprF in P. aeruginosa virulence, at least partly through modulation of the quorum-sensing network. This is the first study showing a link between OprF, PQS synthesis, T3SS, and virulence factor production, providing novel insights into virulence expression.

Indexed as

AnimalsBacterial ProteinsBacterial Secretion SystemsCaco-2 CellsCaenorhabditis elegansCichorium intybusGene Expression Regulation, BacterialHumansPlant LeavesPseudomonas aeruginosaPseudomonas InfectionsQuinolonesQuorum SensingReverse Transcriptase Polymerase Chain ReactionVirulenceVirulence Factors2-heptyl-3-hydroxy-4-quinoloneBacterial ProteinsBacterial Secretion SystemsOprF protein, Pseudomonas aeruginosaQuinolonesVirulence Factors

Identifiers

PMID21189321
PMCPMC3067511
OpenAlexW2158438350

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.