Evidence map›Paper›PMID 26056383›Full record

ArticleInfection and immunity2015

Flagellin Is Required for Host Cell Invasion and Normal Salmonella Pathogenicity Island 1 Expression by Salmonella enterica Serovar Paratyphi A.

Dana Elhadad, Prerak Desai, Galia Rahav, Michael McClelland, Ohad Gal-Mor

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
9.5field-weighted citation impact, top 2% 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

32 citing papers in PubMed, 90 citations in OpenAlex.

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  7. FromACS omega · 2023
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  8. Analysis ofFrontiers in cellular and infection microbiology · 2023
    Review
  9. Frontiers in cellular and infection microbiology · 2023
    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

5 authors at 3 institutions in 2 countries.

Dana ElhadadInfectious Diseases Research Laboratory, Sheba Medical Center, Tel-Hashomer, Israel Department of Clinical Microbiology and Immunology, Tel Aviv University, Tel Aviv, Israel Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Prerak DesaiDepartment of Microbiology and Molecular Genetics, University of California, Irvine, California, USA.
Galia RahavInfectious Diseases Research Laboratory, Sheba Medical Center, Tel-Hashomer, Israel Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Michael McClellandDepartment of Microbiology and Molecular Genetics, University of California, Irvine, California, USA.
Ohad Gal-MorInfectious Diseases Research Laboratory, Sheba Medical Center, Tel-Hashomer, Israel Department of Clinical Microbiology and Immunology, Tel Aviv University, Tel Aviv, Israel Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel Ohad.Gal-Mor@sheba.health.gov.il.
Sheba Medical Center · ILUniversity of California, Irvine · USTel Aviv University · IL

Funding

Univ.of Calif., Irvine Cancer Center Support GrantP30CA062203 · NCI · UNIVERSITY OF CALIFORNIA-IRVINE · PI Christine Hui · 1994 to 2026
$57.9M
NITRIC OXIDE CYTOTOXICITY IN SALMONELLOSISR01AI039557 · NIAID · UNIVERSITY OF WASHINGTON · PI FANG, FERRIC C · 1997 to 2012
$4.1M
Comparative Genomics in the EnterobateriaceaeR01AI052237 · NIAID · WASHINGTON UNIVERSITY · PI WEINSTOCK, GEORGE M · 2002 to 2009
$4.1M
Salmonella polymicrobial interactionsR01AI073971 · NIAID · OHIO STATE UNIVERSITY · PI AHMER, BRIAN M · 2008 to 2012
$2.8M
Identification of Salmonella Genes Important for Systemic ColonizationR01AI083646 · NIAID · TEXAS A&M UNIVERSITY HEALTH SCIENCE CTR · PI ANDREWS-POLYMENIS, HELENE L · 2009 to 2012
$1.6M
Salmonella Genes Associated with Colonization of Specific HostsR01AI075093 · NIAID · VACCINE RESEARCH INSTITUTE OF SAN DIEGO · PI MCCLELLAND, MICHAEL · 2009 to 2010
$928k
Identification of Salmonella Genes Involved in Persistence in the Murine IntestinR56AI077645 · NIAID · TEXAS A&M UNIVERSITY HEALTH SCIENCE CTR · PI ANDREWS-POLYMENIS, HELENE L · 2009 to 2009
$423k
MECHANISMS OF NITRIC OXIDE CYTOTOXICITY IN SALMONELLOSISR21AI039557 · NIAID · UNIVERSITY OF COLORADO DENVER · PI FANG, FERRIC C · 1996 to 1996
–
NCI NIH HHS P30 CA062203NIAID NIH HHS AI039557NIAID NIH HHS AI052237NIAID NIH HHS AI073971NIAID NIH HHS AI075093NIAID NIH HHS AI077645NIAID NIH HHS AI083646NIAID NIH HHS HHSN272200900040CNIAID NIH HHS R01 AI039557NIAID NIH HHS R01 AI052237NIAID NIH HHS R01 AI073971NIAID NIH HHS R01 AI075093NIAID NIH HHS R01 AI083646NIAID NIH HHS R56 AI077645PHS HHS HHSN272200900040C
6 · The paper itself

Abstract

Salmonella enterica serovar Paratyphi A is a human-specific serovar that, together with Salmonella enterica serovar Typhi and Salmonella enterica serovar Sendai, causes enteric fever. Unlike the nontyphoidal Salmonella enterica serovar Typhimurium, the genomes of S. Typhi and S. Paratyphi A are characterized by inactivation of multiple genes, including in the flagellum-chemotaxis pathway. Here, we explored the motility phenotype of S. Paratyphi A and the role of flagellin in key virulence-associated phenotypes. Motility studies established that the human-adapted typhoidal S. Typhi, S. Paratyphi A, and S. Sendai are all noticeably less motile than S. Typhimurium, and comparative transcriptome sequencing (RNA-Seq) showed that in S. Paratyphi A, the entire motility-chemotaxis regulon is expressed at significantly lowers levels than in S. Typhimurium. Nevertheless, S. Paratyphi A, like S. Typhimurium, requires a functional flagellum for epithelial cell invasion and macrophage uptake, probably in a motility-independent mechanism. In contrast, flagella were found to be dispensable for host cell adhesion. Moreover, we demonstrate that in S. Paratyphi A, but not in S. Typhimurium, the lack of flagellin results in increased transcription of the flagellar and the Salmonella pathogenicity island 1 (SPI-1) regulons in a FliZ-dependent manner and in oversecretion of SPI-1 effectors via type three secretion system 1. Collectively, these results suggest a novel regulatory linkage between flagellin and SPI-1 in S. Paratyphi A that does not occur in S. Typhimurium and demonstrate curious distinctions in motility and the expression of the flagellum-chemotaxis regulon between these clinically relevant pathogens.

Indexed as

Bacterial ProteinsBlotting, WesternCaco-2 CellsFlagellinHumansMass SpectrometryParatyphoid FeverReverse Transcriptase Polymerase Chain ReactionSalmonella paratyphi ABacterial ProteinsFlagellin

Identifiers

PMID26056383
PMCPMC4534655
OpenAlexW2159700448

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.