Evidence map›Paper›PMID 20032301›Full record

ArticleMolecular biology of the cell2010

Hypoxia-inducible factor-dependent regulation of platelet-activating factor receptor as a route for gram-positive bacterial translocation across epithelia.

Simon Keely, Louise E Glover, Thomas Weissmueller, Christopher F MacManus, Sophie Fillon, Blair Fennimore, Sean P Colgan

Abstract read
In one paragraph

Article in Molecular biology of the cell, 2010. 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
1.1field-weighted citation impact, top 23% 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, 49 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Microbiology and molecular biology reviews : MMBR · 2024
    Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Immune network · 2017
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Roles of M cells in infection and mucosal vaccines.Human vaccines & immunotherapeutics · 2014
    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 2 institutions in 1 country.

Simon KeelyMucosal Inflammation Program, Department of Medicine, University of Colorado Denver, Aurora, CO 80045, USA. simon.keely@ucdenver.edu
Louise E Glover
Thomas Weissmueller
Christopher F MacManus
Sophie Fillon
Blair Fennimore
Sean P Colgan
University of Colorado Denver · USChildren's Hospital Colorado · US

Funding

Specialized Center for Oral Inflammation and ResolutionP50DE016191 · NIDCR · BRIGHAM AND WOMEN'S HOSPITAL · PI SERHAN, CHARLES NICHOLAS · 2004 to 2010
$13.6M
ROLE OF EPITHELIA IN ISCHEMIA/REPERFUSION INJURYR01DK050189 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI COLGAN, SEAN P · 2000 to 2024
$5.0M
Hypoxia, HIF, and Mucosal InflammationR37DK050189 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI COLGAN, SEAN P · 2010 to 2019
$4.1M
Neutrophils and Vascular Endothelial PermeabilityR01HL060569 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI COLGAN, SEAN P · 1999 to 2013
$3.5M
GASTROINTESTINAL DISEASE TRAINING GRANTT32DK007038 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI COLGAN, SEAN P · 1986 to 2020
$3.5M
EPITHELIA AND ISCHEMIA/REPERFUSION INJURYR29DK050189 · NIDDK · BRIGHAM AND WOMEN'S HOSPITAL · PI COLGAN, SEAN P · 1995 to 1999
–
NHLBI NIH HHS HL-60569NHLBI NIH HHS R01 HL060569NIDCR NIH HHS DE-016191NIDCR NIH HHS P50 DE016191NIDDK NIH HHS DK-50189NIDDK NIH HHS R01 DK050189NIDDK NIH HHS R29 DK050189NIDDK NIH HHS R37 DK050189NIDDK NIH HHS T32 DK007038
6 · The paper itself

Abstract

Mucosal surfaces, such as the lung and intestine, are lined by a monolayer of epithelia that provides tissue barrier and transport function. It is recently appreciated that a common feature of inflammatory processes within the mucosa is hypoxia (so-called inflammatory hypoxia). Given the strong association between bacterial translocation and mucosal inflammatory disease, we hypothesized that intestinal epithelial hypoxia influences bacterial translocation. Initial studies revealed that exposure of cultured intestinal epithelia to hypoxia (pO(2), 20 torr; 24-48 h) resulted in a increase of up to 40-fold in the translocation of some strains of Gram-positive bacteria, independently of epithelial barrier function. A screen of relevant pathway inhibitors identified a prominent role for the platelet-activating factor receptor (PAFr) in hypoxia-associated bacterial translocation, wherein pharmacologic antagonists of PAFr blocked bacterial translocation by as much as 80 +/- 6%. Extensions of these studies revealed that hypoxia prominently induces PAFr through a hypoxia-inducible factor (HIF)-dependent mechanism. Indeed, HIF and PAFr loss of function studies (short hairpin RNA) revealed that apically expressed PAFr is central to the induction of translocation for the Gram-positive bacteria Enterococcus faecalis. Together, these findings reveal that some strains of Gram-positive bacteria exploit HIF-regulated PAFr as a means for translocation through intestinal epithelial cells.

Indexed as

Intestinal MucosaAnimalsBiological TransportCaco-2 CellsCell MembraneGene Knockdown TechniquesGram-Positive BacteriaHumansHypoxiaHypoxia-Inducible Factor 1, alpha SubunitIsoenzymesMicePlatelet Membrane GlycoproteinsReceptors, G-Protein-CoupledRNA InterferenceTranscriptional ActivationHypoxia-Inducible Factor 1, alpha SubunitIsoenzymesplatelet activating factor receptorPlatelet Membrane GlycoproteinsReceptors, G-Protein-Coupled

Identifiers

PMID20032301
PMCPMC2820419
OpenAlexW2012549312

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.