Evidence map›Paper›PMID 12438393›Full record

ArticleInfection and immunity2002

Concomitant cytosolic delivery of two immunodominant listerial antigens by Salmonella enterica serovar typhimurium confers superior protection against murine listeriosis.

Emeka I Igwe, Gernot Geginat, Holger Rüssmann

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
4.5field-weighted citation impact, top 6% 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

10 citing papers in PubMed, 33 citations in OpenAlex.

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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 1 institution in 1 country.

Emeka I IgweMax von Pettenkofer-Institut für Hygiene und Medizinische Mikrobiologie, Ludwig Maximilians Universität München, Germany.
Gernot Geginat
Holger Rüssmann
Ludwig-Maximilians-Universität München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

During its interaction with host cells, Salmonella enterica serovar Typhimurium employs a type III secretion system for cytosolic targeting of virulence factors. This protein translocation mechanism is a useful tool for heterologous antigen delivery by attenuated Salmonella vaccine carrier strains. In the present study, we used the Yersinia outer protein E (YopE) as a carrier molecule for Salmonella type III-dependent cytosolic delivery of the immunodominant CD8 T-cell antigens listeriolysin O (LLO) and p60 of Listeria monocytogenes. It is shown that concomitant translocation of hybrid YopE/LLO and YopE/p60 proteins by Salmonella led to antigen presentation and CD8 T-cell priming efficacies comparable to those of translocation of single listerial antigens. However, simultaneous translocation of LLO and p60 significantly surpassed single cytosolic antigen delivery in the ability to protect against Listeria. For the first time, this study demonstrates that concomitant expression of two independent antigens via the same recombinant plasmid leads to superior protection against a challenge with an intracellular bacterial pathogen. In conclusion, these findings emphasize the versatility of Salmonella type III-mediated heterologous antigen delivery for the induction of cytotoxic T-lymphocyte-mediated immunity.

Indexed as

Bacterial ToxinsAdministration, OralAnimalsAntigen PresentationAntigens, BacterialBacterial Outer Membrane ProteinsBacterial ProteinsBacterial VaccinesCD8-Positive T-LymphocytesCell LineCytosolFemaleGenetic VectorsHeat-Shock ProteinsHemolysin ProteinsImmunodominant Epitopes60 kDa protein, Listeria monocytogenesAntigens, BacterialBacterial Outer Membrane ProteinsBacterial ProteinsBacterial ToxinsBacterial VaccinesHeat-Shock ProteinsHemolysin ProteinshlyA protein, Listeria monocytogenesImmunodominant EpitopesRecombinant Fusion ProteinsyopE protein, Yersinia

Identifiers

PMID12438393
PMCPMC133064
OpenAlexW2165644503

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.