Evidence map›Paper›PMID 24643532›Full record

ArticleInfection and immunity2014

Salmonella enterica serovar Typhi impairs CD4 T cell responses by reducing antigen availability.

Shaikh M Atif, Sebastian E Winter, Maria G Winter, Stephen J McSorley, Andreas J Bäumler

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2014. 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
6.4field-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, 28 citations in OpenAlex.

  1. Review
  2. Infection biology ofEcoSal Plus · 2024
    Review
  3. Article
  4. FromACS omega · 2023
    Review
  5. Article
  6. Article
  7. HumanClinical & translational immunology · 2020
    Article
  8. Frontiers in cellular and infection microbiology · 2020
    Review
  9. Review
  10. Article
  11. Frontiers in immunology · 2018
    Article
  12. Vaccination against Salmonella Infection: the Mucosal Way.Microbiology and molecular biology reviews : MMBR · 2017
    Review
  13. Article
  14. Review
  15. Importance ofFrontiers in immunology · 2017
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. 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

5 authors at 1 institution in 1 country.

Shaikh M AtifCenter for Comparative Medicine, Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California, Davis, Davis, California, USA.
Sebastian E Winter
Maria G Winter
Stephen J McSorley
Andreas J Bäumler
University of California, Davis · US

Funding

Virulence Factors of SalmonellaR01AI044170 · NIAID · UNIVERSITY OF CALIFORNIA DAVIS · PI BAUMLER, ANDREAS J · 1999 to 2022
$8.5M
CD4 T Cell Response to SalmonellaR01AI055743 · NIAID · UNIVERSITY OF MINNESOTA TWIN CITIES · PI MCSORLEY, STEPHEN J · 2004 to 2013
$3.5M
Innate immune response to bacterial flagellinsR01AI076278 · NIAID · UNIVERSITY OF MINNESOTA · PI MCSORLEY, STEPHEN J · 2009 to 2015
$2.3M
Salmonella Host interactionsR37AI044170 · NIAID · UNIVERSITY OF CALIFORNIA AT DAVIS · PI Andreas J Baumler, Renee M Tsolis · 2025 to 2026
$1.2M
Nitrate respiration by Salmonella during gut inflammationR21AI103248 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI WINTER, SEBASTIAN E · 2013 to 2014
$422k
EXTRAMURAL RESEARCH FACILITIES CONSTRUCTIONC06RR012088 · NCRR · UNIVERSITY OF CALIFORNIA DAVIS · PI CURRY, FITZ-ROY E · 1996 to 1996
–
NCRR NIH HHS C06 RR012088NIAID NIH HHS AI044170NIAID NIH HHS AI055743NIAID NIH HHS AI076278NIAID NIH HHS AI103248NIAID NIH HHS R01 AI044170NIAID NIH HHS R01 AI055743NIAID NIH HHS R01 AI076278NIAID NIH HHS R21 AI103248NIAID NIH HHS R37 AI044170
6 · The paper itself

Abstract

Salmonella enterica serovar Typhi is associated with a disseminated febrile illness in humans, termed typhoid fever, while Salmonella enterica serovar Typhimurium causes localized gastroenteritis in immunocompetent individuals. One of the genetic differences between both pathogens is the presence in S. Typhi of TviA, a regulatory protein that shuts down flagellin (FliC) expression when bacteria transit from the intestinal lumen into the intestinal mucosa. Here we investigated the consequences of TviA-mediated flagellum gene regulation on flagellin-specific CD4 T cell responses in a mouse model of S. Typhimurium infection. Introduction of the S. Typhi tviA gene into S. Typhimurium suppressed antigen presentation of dendritic cells to flagellin-specific CD4 T cells in vitro. Furthermore, TviA-mediated repression of flagellin expression impaired the activation and proliferation of naive flagellin-specific CD4 T cells in Peyer's patches and mesenteric lymph nodes, which was accompanied by increased bacterial dissemination to the spleen. We conclude that TviA-mediated repression of flagellin expression reduces antigen availability, thereby weakening flagellin-specific CD4 T cell responses.

Indexed as

AnimalsAntigens, BacterialBacterial LoadBacterial ProteinsCD4-Positive T-LymphocytesDisease Models, AnimalFlagellinGene Expression Regulation, BacterialMiceMice, Inbred C57BLSalmonella InfectionsSalmonella typhiSalmonella typhimuriumTranscription FactorsAntigens, BacterialBacterial ProteinsFlagellinTranscription FactorstviA protein, Salmonella typhi

Identifiers

PMID24643532
PMCPMC4019166
OpenAlexW2166671791

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.