Evidence map›Paper›PMID 21546584›Full record

ArticleMicrobiology (Reading, England)2011

Stenotrophomonas maltophilia strains replicate and persist in the murine lung, but to significantly different degrees.

Ruella Rouf, Sara M Karaba, Jenny Dao, Nicholas P Cianciotto

Open access · greenAbstract read
In one paragraph

Article in Microbiology (Reading, England), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

21 citing papers in PubMed, 25 citations in OpenAlex.

  1. Draft genome sequences ofMicrobiology resource announcements · 2025
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  2. A novel pathogenic species of genusFrontiers in cellular and infection microbiology · 2024
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  3. Frontiers in microbiology · 2023
    Article
  4. Clinical challenges treatingJAC-antimicrobial resistance · 2022
    Review
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  13. Article
  14. Alterations of lung microbiota in a mouse model of LPS-induced lung injury.American journal of physiology. Lung cellular and molecular physiology · 2015
    Article
  15. Article
  16. Article
  17. Article
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  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

4 authors at 1 institution in 1 country.

Ruella RoufDepartment of Microbiology and Immunology, Northwestern University Medical School, Chicago, IL 60611, USA.
Sara M KarabaDepartment of Microbiology and Immunology, Northwestern University Medical School, Chicago, IL 60611, USA.
Jenny DaoDepartment of Microbiology and Immunology, Northwestern University Medical School, Chicago, IL 60611, USA.
Nicholas P CianciottoDepartment of Microbiology and Immunology, Northwestern University Medical School, Chicago, IL 60611, USA.
Northwestern University · US

Funding

Bacterial chitinases as new virulence factorsR21AI076693 · NIAID · NORTHWESTERN UNIVERSITY AT CHICAGO · PI CIANCIOTTO, NICHOLAS P · 2009 to 2010
$433k
Virulence Factors of Stenotrophomonas maltophiliaR03AI082541 · NIAID · NORTHWESTERN UNIVERSITY AT CHICAGO · PI CIANCIOTTO, NICHOLAS P · 2009 to 2010
$153k
NIAID NIH HHS R03 AI082541NIAID NIH HHS R21 AI076693
6 · The paper itself

Abstract

The environmental bacterium Stenotrophomonas maltophilia is increasingly described as a multidrug-resistant pathogen of humans, being associated with pneumonia, among other diseases. But the degree to which S. maltophilia is capable of replicating in a mammalian host has been an issue of controversy. Using a model of intranasal inoculation into adult A/J mice, we now document that S. maltophilia strain K279a, the clinical isolate of S. maltophilia whose complete genome sequence was recently determined, is in fact capable of replicating in lungs, displaying as much as a 10-fold increase in c.f.u. in the first 8 h of infection. Importantly, as few as 10(4) c.f.u. deposited into the A/J lung was sufficient to promote bacterial outgrowth. Bacterial replication in the lungs of the A/J mice was followed by elevations in pro-inflammatory cytokines and also promoted resistance to subsequent challenge. We also found that DBA/2 mice were permissive for S. maltophilia K279a replication, although the level of growth and persistence in these animals was less than it was in the A/J mice. In contrast, the BALB/c and C57BL/6 mouse strains were non-permissive for S. maltophilia K279a growth. Interestingly, when five additional clinical isolates were introduced into the A/J lung, marked differences in survival were observed, with some strains being much less infective than K279a and others being appreciably more infective. These data suggest that the presence of major virulence determinants is variable among clinical isolates. Overall, this study confirms the infectivity of S. maltophilia for the mammalian host, and illustrates how both host and bacterial factors affect the outcome of Stenotrophomonas infection.

Indexed as

AnimalsCytokinesGram-Negative Bacterial InfectionsLungMiceMice, Inbred AMice, Inbred BALB CMice, Inbred C57BLMice, Inbred DBAStenotrophomonas maltophiliaVirulence FactorsCytokinesVirulence Factors

Identifiers

PMID21546584
PMCPMC3167887
OpenAlexW2011826146

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.