Evidence map›Paper›PMID 17764466›Full record

ArticleCellular microbiology2007

IFN-gamma amplifies NFkappaB-dependent Neisseria meningitidis invasion of epithelial cells via specific upregulation of CEA-related cell adhesion molecule 1.

Natalie J Griffiths, Christopher J Bradley, Robert S Heyderman, Mumtaz Virji

Open access · greenAbstract read
In one paragraph

Article in Cellular microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
5.6field-weighted citation impact, top 4% 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

25 citing papers in PubMed, 47 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Journal of oral microbiology · 2019
    Article
  6. Article
  7. Review
  8. Article
  9. Article
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  18. Article
  19. Review
  20. Immunopathogenesis of polymicrobial otitis media.Journal of leukocyte biology · 2010
    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

4 authors at 3 institutions in 2 countries.

Natalie J GriffithsDepartment of Cellular and Molecular Medicine, School of Medical Sciences, University of Bristol, Bristol, BS8 1TD, UK.
Christopher J Bradley
Robert S Heyderman
Mumtaz Virji
University of Bristol · GBReNeuron (United Kingdom) · GBUniversity of Liverpool · GB

Funding

Medical Research Council G0500644Wellcome Trust 077243
6 · The paper itself

Abstract

Temporal relationship between viral and bacterial infections has been observed, and may arise via the action of virus-induced inflammatory cytokines. These, by upregulating epithelial receptors targeted by bacteria, may encourage greater bacterial infiltration. In this study, human epithelial cells exposed to interferon-gamma but not tumour necrosis factor-alpha or interleukin 1-beta supported increased meningococcal adhesion and invasion. The increase was related to Opa but not Opc or pili adhesin expression. De novo synthesis of carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1), a major Opa receptor, occurred in epithelial cells exposed to the cytokine, or when infected with Opa-expressing bacteria. Cell line-dependent differences in invasion that were observed could be correlated with CEACAM expression levels. There was also evidence for Opa/pili synergism leading to high levels of monolayer infiltration by capsulate bacteria. The use of nuclear factor-kappa B (NFkappaB) inhibitors, diferuloylmethane (curcumin) and SN50, abrogated bacterial infiltration of both untreated and interferon-gamma-treated cells. The studies demonstrate the importance of CEACAMs as mediators of increased cellular invasion under conditions of inflammation and bring to light the potential role of NFkappaB pathway in Opa-mediated invasion by meningococci. The data imply that cell-surface remodelling by virally induced cytokines could be one factor that increases host susceptibility to bacterial infection.

Indexed as

Bacterial AdhesionUp-RegulationAdhesins, BacterialAntigens, CDAnti-Inflammatory Agents, Non-SteroidalBacterial Outer Membrane ProteinsCarrier ProteinsCell Adhesion MoleculesCell LineCurcuminEpithelial CellsHumansInterferon-gammaNeisseria meningitidisNF-kappa BPeptide FragmentsAdhesins, BacterialAntigens, CDAnti-Inflammatory Agents, Non-SteroidalBacterial Outer Membrane ProteinsCarrier ProteinsCD66 antigensCell Adhesion MoleculesCurcuminInterferon-gammaNF-kappa BOpa protein, Neisseriaopc protein, bacteriaPeptide FragmentsPeptidesrD-7 peptideSN50 peptide

Identifiers

PMID17764466
PMCPMC3020365
OpenAlexW1898993834

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.