Evidence map›Paper›PMID 21716657›Full record

ArticleFrontiers in microbiology2011

The Role of the spv Genes in Salmonella Pathogenesis.

Donald G Guiney, Joshua Fierer

Open access · goldAbstract read
In one paragraph

Article in Frontiers in microbiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 125 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
125citing papers in PubMed, 1 pooled it
14.3field-weighted citation impact, top 1% 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

125 citing papers in PubMed, 1 synthesis or guideline pooled it, 209 citations in OpenAlex.

  1. Pooled it
  2. Disseminated multidrug-resistant Salmonella enterica serovar Dublin infection associated with plasmid-borne CMY-2 gene in a patient with travel to a farm in Mexico.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026
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  16. Towards decentralization ofFrontiers in microbiology · 2025
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  18. Genetic engineering ofEcoSal Plus · 2024
    Review
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65 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

Donald G GuineyDepartment of Medicine, University of California San Diego School of Medicine La Jolla, CA, USA.
Joshua Fierer
University of California, San Diego · US

Funding

PLASMID-MEDIATED VIRULENCE IN SALMONELLAR01AI032178 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GUINEY, DONALD G. · 1993 to 2008
$3.1M
Intestinal Physiology in the Host Response to Enteric Salmonella InfectionsR01AI077661 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GUINEY, DONALD G. · 2009 to 2013
$2.5M
Plasmid-Mediated Virulence in SalmonellaR56AI032178 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GUINEY, DONALD G. · 2010 to 2010
$386k
NIAID NIH HHS R01 AI032178NIAID NIH HHS R01 AI077661NIAID NIH HHS R56 AI032178
6 · The paper itself

Abstract

Salmonella strains cause three main types of diseases in people: gastroenteritis, enteric (typhoid) fever, and non-typhoid extra-intestinal disease with bacteremia. Genetic analysis indicates that each clinical syndrome requires distinct sets of virulence genes, and Salmonella isolates differ in their constellation of virulence traits. The spv locus is strongly associated with strains that cause non-typhoid bacteremia, but are not present in typhoid strains. The spv region contains three genes required for the virulence phenotype in mice: the positive transcriptional regulator spvR and two structural genes spvB and spvC. SpvB and SpvC are translocated into the host cell by the Salmonella pathogenicity island-2 type-three secretion system. SpvB prevents actin polymerization by ADP-ribosylation of actin monomers, while SpvC has phosphothreonine lyase activity and has been shown to inhibit MAP kinase signaling. The exact mechanisms by which SpvB and SpvC act in concert to enhance virulence are still unclear. SpvB exhibits a cytotoxic effect on host cells and is required for delayed cell death by apoptosis following intracellular infection. Strains isolated from systemic infections of immune compromised patients, particularly HIV patients, usually carry the spv locus, strongly suggesting that CD4 T cells are required to control disease due to Salmonella that are spv positive. This association is not seen with typhoid fever, indicating that the pathogenesis and immunology of typhoid have fundamental differences from the syndrome of non-typhoid bacteremia.

Indexed as

ADP-ribosylationapoptosisCD4non-typhoid bacteremiaphosphothreonine lyaseSalmonellaspvvirulence

Identifiers

PMID21716657
PMCPMC3117207
OpenAlexW2088624564

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.