Evidence map›Paper›PMID 19720755›Full record

ArticleInfection and immunity2009

Salmonella enterica serovar typhimurium exploits Toll-like receptor signaling during the host-pathogen interaction.

Christine E Wong, Subash Sad, Brian K Coombes

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 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.3field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. The Protective Effect ofFrontiers in veterinary science · 2021
    Article
  5. Article
  6. Article
  7. Evolution ofFrontiers in cellular and infection microbiology · 2017
    Review
  8. Article
  9. Review
  10. Article
  11. Review
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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

3 authors at 2 institutions in 1 country.

Christine E WongMichael G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Health Sciences Centre, Room 4H17, 1200 Main Street West, Hamilton, Ontario L8N 3Z5, Canada.
Subash Sad
Brian K Coombes
McMaster University · CAInstitute for Biological Sciences · CA

Funding

CIHR 87055CIHR MOP 82704
6 · The paper itself

Abstract

Salmonella survives and replicates in host cells by using a type III secretion system to evade host immune defenses. The innate immune system plays an important role as a first line of defense against pathogens and is mediated in part by Toll-like receptors (TLRs); however, the infection dynamics of Salmonella enterica serovar Typhimurium within macrophages stimulated with TLR ligands is poorly understood. We studied the infection dynamics of Salmonella in murine macrophages previously exposed to TLR ligands and report that treatment of macrophages with four different TLR agonists resulted in their increased phagocytic capacity toward Salmonella but not fluorescent microspheres. Further analysis revealed that the intracellular replication of Salmonella was enhanced in TLR-stimulated macrophages in a manner requiring a functional type III secretion system and enhanced transcriptional activity of the sseA virulence gene operon. Studies of mice that normally resolve an acute primary infection with Salmonella revealed that pretreatment of animals with CpG DNA had a detrimental effect on disease outcome. CpG-treated mice infected with Salmonella all succumbed to infection and had higher bacterial loads in the spleen than did control animals. These data suggest that Salmonella can exploit macrophages activated via the innate immune system for increased intracellular survival.

Indexed as

AnimalsBacterial ProteinsFluorescent Antibody TechniqueHost-Pathogen InteractionsMacrophagesMembrane ProteinsMiceMicroscopy, Electron, TransmissionSalmonella Infections, AnimalSalmonella typhimuriumSignal TransductionToll-Like ReceptorsBacterial ProteinsMembrane ProteinsSPI-2 protein, SalmonellaToll-Like Receptors

Identifiers

PMID19720755
PMCPMC2772538
OpenAlexW2138756360

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.