Evidence map›Paper›PMID 23418576›Full record

ArticlePloS one2013

Hypoxia modulates infection of epithelial cells by Pseudomonas aeruginosa.

Bettina Schaible, Siobhán McClean, Andrew Selfridge, Alexis Broquet, Karim Asehnoune, Cormac T Taylor, Kirsten Schaffer

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

43 citing papers in PubMed, 70 citations in OpenAlex.

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  11. Carbonic Anhydrase IX and Hypoxia Promote Rat Pulmonary Endothelial Cell Survival during Infection.American journal of respiratory cell and molecular biology · 2021
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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 5 institutions in 3 countries.

Bettina SchaibleUCD School of Medicine and Medical Science and The Conway Institute, University College Dublin, Dublin, Ireland.
Siobhán McClean
Andrew Selfridge
Alexis Broquet
Karim Asehnoune
Cormac T Taylor
Kirsten Schaffer
Nantes Université · FRUniversity College Dublin · IEQueen's University Belfast · GBSt. Vincent's University Hospital · IETallaght University Hospital · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pseudomonas aeruginosa (P. aeruginosa) is an opportunistic pathogen commonly associated with lung and wound infections. Hypoxia is a frequent feature of the microenvironment of infected tissues which induces the expression of genes associated with innate immunity and inflammation in host cells primarily through the activation of the hypoxia-inducible factor (HIF) and Nuclear factor kappaB (NF-κB) pathways which are regulated by oxygen-dependent prolyl-hydroxylases. Hypoxia also affects virulence and antibiotic resistance in bacterial pathogens. However, less is known about the impact of hypoxia on host-pathogen interactions such as bacterial adhesion and infection. In the current study, we demonstrate that hypoxia decreases the internalization of P. aeruginosa into cultured epithelial cells resulting in decreased host cell death. This response can also be elicited by the hydroxylase inhibitor Dimethyloxallyl Glycine (DMOG). Reducing HIF-2α expression or Rho kinase activity diminished the effects of hypoxia on P. aeruginosa infection. Furthermore, in an in vivo pneumonia infection model, application of DMOG 48 h before infection with P. aeruginosa significantly reduced mortality. Thus, hypoxia reduces P. aeruginosa internalization into epithelial cells and pharmacologic manipulation of the host pathways involved may represent new therapeutic targets in the treatment of P. aeruginosa infection.

Indexed as

AmidesAmino Acids, DicarboxylicAnimalsBasic Helix-Loop-Helix ProteinsBlotting, WesternCaco-2 CellsCell HypoxiaCell LineCell Line, TumorCells, CulturedEndocytosisEndothelial PAS Domain-Containing Protein 1Epithelial CellsHep G2 CellsHost-Pathogen InteractionsHumansAmidesAmino Acids, DicarboxylicBasic Helix-Loop-Helix ProteinsEndothelial PAS Domain-Containing Protein 1oxalylglycinePyridinesrho GTP-Binding ProteinsY 27632

Identifiers

PMID23418576
PMCPMC3572047
OpenAlexW1997142974

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.