Evidence map›Paper›PMID 19651860›Full record

ArticleInfection and immunity2009

Nitrite reductase NirS is required for type III secretion system expression and virulence in the human monocyte cell line THP-1 by Pseudomonas aeruginosa.

Nadine E Van Alst, Melanie Wellington, Virginia L Clark, Constantine G Haidaris, Barbara H Iglewski

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

29 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. A Commensal Streptococcus Dysregulates theFrontiers in cellular and infection microbiology · 2022
    Article
  5. Sub-Inhibitory Antibiotic Exposure and Virulence inAntibiotics (Basel, Switzerland) · 2021
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Fitting Pieces into the Puzzle ofJournal of bacteriology · 2019
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

5 authors at 1 institution in 1 country.

Nadine E Van AlstDepartment of Microbiology and Immunology, University of Rochester Medical Center, 601 Elmwood Ave., Rochester, NY 14642, USA.
Melanie Wellington
Virginia L Clark
Constantine G Haidaris
Barbara H Iglewski
University of Rochester Medical Center · US

Funding

The T32 Predoctoral Training Program in Immunology (PTPI)T32AI007285 · NIAID · UNIVERSITY OF ROCHESTER · PI Scott Andrew Gerber, JACQUES Robert · 1986 to 2026
$7.6M
The University of Rochester's Clinical and Translational Science InstituteKL2RR024136 · NCRR · UNIVERSITY OF ROCHESTER · PI PEARSON, THOMAS ARTHUR · 2006 to 2011
$4.3M
REGULATION OF PSEUDOMONAS AERUGINOSA PROTEASESR37AI033713 · NIAID · UNIVERSITY OF ROCHESTER · PI IGLEWSKI, BARBARA H. · 2001 to 2010
$3.7M
NCRR NIH HHS KL2 RR024136NIAID NIH HHS 5 T32 AI007285NIAID NIH HHS R37 AI033713NIAID NIH HHS R37AI33713NIAID NIH HHS T32 AI007285
6 · The paper itself

Abstract

The nitrate dissimilation pathway is important for anaerobic growth in Pseudomonas aeruginosa. In addition, this pathway contributes to P. aeruginosa virulence by using the nematode Caenorhabditis elegans as a model host, as well as biofilm formation and motility. We used a set of nitrate dissimilation pathway mutants to evaluate the virulence of P. aeruginosa PA14 in a model of P. aeruginosa-phagocyte interaction by using the human monocytic cell line THP-1. Both membrane nitrate reductase and nitrite reductase enzyme complexes were important for cytotoxicity during the interaction of P. aeruginosa PA14 with THP-1 cells. Furthermore, deletion mutations in genes encoding membrane nitrate reductase (Delta narGH) and nitrite reductase (Delta nirS) produced defects in the expression of type III secretion system (T3SS) components, extracellular protease, and elastase. Interestingly, exotoxin A expression was unaffected in these mutants. Addition of exogenous nitric oxide (NO)-generating compounds to Delta nirS mutant cultures restored the production of T3SS phospholipase ExoU, whereas nitrite addition had no effect. These data suggest that NO generated via nitrite reductase NirS contributes to the regulation of expression of selected virulence factors in P. aeruginosa PA14.

Indexed as

AnimalsBacterial ProteinsCell LineCell SurvivalColony Count, MicrobialGene DeletionGene Knockout TechniquesHumansMembrane Transport ProteinsMicrobial ViabilityMonocytesMutationNitrate ReductaseNitrite ReductasesPseudomonas aeruginosaVirulenceBacterial ProteinsMembrane Transport ProteinsNitrate ReductaseNitrite ReductasesVirulence Factors

Identifiers

PMID19651860
PMCPMC2747934
OpenAlexW2101912170

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.