Evidence map›Paper›PMID 23637908›Full record

ArticlePloS one2013

Vaccination using recombinants influenza and adenoviruses encoding amastigote surface protein-2 are highly effective on protection against Trypanosoma cruzi infection.

Rafael Polidoro Alves Barbosa, Bruno Galvão Filho, Luara Isabela Dos Santos, Policarpo Ademar Sales Junior, Pedro Elias Marques, Rafaela Vaz Sousa Pereira, Denise Carmona Cara, Oscar Bruña-Romero, Maurício Martins Rodrigues, Ricardo Tostes Gazzinelli and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

16 citing papers in PubMed, 26 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

11 authors at 4 institutions in 2 countries.

Rafael Polidoro Alves BarbosaDepartamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
Bruno Galvão Filho
Luara Isabela Dos Santos
Policarpo Ademar Sales Junior
Pedro Elias Marques
Rafaela Vaz Sousa Pereira
Denise Carmona Cara
Oscar Bruña-Romero
Maurício Martins Rodrigues
Ricardo Tostes Gazzinelli
Alexandre Vieira Machado
Universidade Federal de Minas Gerais · BRFundação Oswaldo Cruz · BRUniversidade Federal de São Paulo · BRUniversity of Massachusetts Chan Medical School · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the present study we evaluated the protection raised by immunization with recombinant influenza viruses carrying sequences coding for polypeptides corresponding to medial and carboxi-terminal moieties of Trypanosoma cruzi ´s amastigote surface protein 2 (ASP2). Those viruses were used in sequential immunization with recombinant adenovirus (heterologous prime-boost immunization protocol) encoding the complete sequence of ASP2 (Ad-ASP2) in two mouse strains (C57BL/6 and C3H/He). The CD8 effector response elicited by this protocol was comparable to that observed in mice immunized twice with Ad-ASP2 and more robust than that observed in mice that were immunized once with Ad-ASP2. Whereas a single immunization with Ad-ASP2 sufficed to completely protect C57BL/6 mice, a higher survival rate was observed in C3H/He mice that were primed with recombinant influenza virus and boosted with Ad-ASP2 after being challenged with T. cruzi. Analyzing the phenotype of CD8+ T cells obtained from spleen of vaccinated C3H/He mice we observed that heterologous prime-boost immunization protocol elicited more CD8+ T cells specific for the immunodominant epitope as well as a higher number of CD8+ T cells producing TNF-α and IFN-γ and a higher mobilization of surface marker CD107a. Taken together, our results suggest that immunodominant subpopulations of CD8+ T elicited after immunization could be directly related to degree of protection achieved by different immunization protocols using different viral vectors. Overall, these results demonstrated the usefulness of recombinant influenza viruses in immunization protocols against Chagas Disease.

Indexed as

AdenoviridaeAnimalsAntibodies, ProtozoanAntibody SpecificityCD8-Positive T-LymphocytesCell LineChagas DiseaseEpitopes, T-LymphocyteGenetic VectorsHumansImmunity, CellularImmunity, HumoralImmunoglobulin GMaleMiceNeuraminidaseAntibodies, ProtozoanASP-2 protein, Trypanosoma cruziEpitopes, T-LymphocyteImmunoglobulin GNeuraminidaseProtozoan Vaccines

Identifiers

PMID23637908
PMCPMC3634828
OpenAlexW2091857962

What OpenQuestion holds

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LicenceCC BY
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.