Evidence map›Paper›PMID 23056473›Full record

ArticlePloS one2012

Flagella overexpression attenuates Salmonella pathogenesis.

Xinghong Yang, Theresa Thornburg, Zhiyong Suo, SangMu Jun, Amanda Robison, Jinquan Li, Timothy Lim, Ling Cao, Teri Hoyt, Recep Avci and 1 more

Abstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
–field-weighted citation impact
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

28 citing papers in PubMed.

  1. Article
  2. Article
  3. Response mechanisms to acid stress promote LF82 replication in macrophages.Frontiers in cellular and infection microbiology · 2023
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Immunological and bacteriological shifts associated with a flagellin-hyperproducing Salmonella Enteritidis mutant in chickens.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Dynamics and Control of Flagella Assembly inFrontiers in cellular and infection microbiology · 2018
    Article
  13. Antibodies againstInfection and immunity · 2017
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  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

11 authors.

Xinghong YangDepartment of Immunology & Infectious Diseases, Montana State University, Bozeman, Montana, United States of America. yangxh@montana.edu
Theresa Thornburg
Zhiyong Suo
SangMu Jun
Amanda Robison
Jinquan Li
Timothy Lim
Ling Cao
Teri Hoyt
Recep Avci
David W Pascual

Funding

VIRUSES: FROM PARTICLES TO PROTEOMICSP20RR020185 · NCRR · MONTANA STATE UNIVERSITY - BOZEMAN · PI MEISSNER, NICOLE · 2004 to 2011
$17.0M
UF Clinical and Translational Science AwardUL1TR000064 · NCATS · UNIVERSITY OF FLORIDA · PI NELSON, DAVID R · 2012 to 2014
$12.2M
MUCOSAL IMMUNITY ELICITED BY SALMONELLA VACCINE DELIVERYR01AI041123 · NIAID · MONTANA STATE UNIVERSITY - BOZEMAN · PI PASCUAL, DAVID W · 1999 to 2009
$1.9M
Evaluation of Protein Channel-Attenuated Salmonella VaccinesR21AI080960 · NIAID · MONTANA STATE UNIVERSITY - BOZEMAN · PI YANG, XINGHONG · 2009 to 2010
$392k
NCATS NIH HHS UL1 TR000064NCRR NIH HHS P20 RR020185NIAID NIH HHS R01 AI041123NIAID NIH HHS R21 AI080960
6 · The paper itself

Abstract

Flagella are cell surface appendages involved in a number of bacterial behaviors, such as motility, biofilm formation, and chemotaxis. Despite these important functions, flagella can pose a liability to a bacterium when serving as potent immunogens resulting in the stimulation of the innate and adaptive immune systems. Previous work showing appendage overexpression, referred to as attenuating gene expression (AGE), was found to enfeeble wild-type Salmonella. Thus, this approach was adapted to discern whether flagella overexpression could induce similar attenuation. To test its feasibility, flagellar filament subunit FliC and flagellar regulon master regulator FlhDC were overexpressed in Salmonella enterica serovar Typhimurium wild-type strain H71. The results show that the expression of either FliC or FlhDC alone, and co-expression of the two, significantly attenuates Salmonella. The flagellated bacilli were unable to replicate within macrophages and thus were not lethal to mice. In-depth investigation suggests that flagellum-mediated AGE was due to the disruptive effects of flagella on the bacterial membrane, resulting in heightened susceptibilities to hydrogen peroxide and bile. Furthermore, flagellum-attenuated Salmonella elicited elevated immune responses to Salmonella presumably via FliC's adjuvant effect and conferred robust protection against wild-type Salmonella challenge.

Indexed as

AnimalsBacterial ProteinsFemaleFlagellaGene ExpressionMiceMice, Inbred C57BLMicrobial ViabilitySalmonella typhimuriumVaccinationBacterial Proteins

Identifiers

PMID23056473
PMCPMC3463563

What OpenQuestion holds

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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.