Evidence map›Paper›PMID 21319978›Full record

ArticleViral immunology2011

Broad humoral and cellular immunity elicited by a bivalent DNA vaccine encoding HA and NP genes from an H5N1 virus.

Ke Xu, Zhi-Yang Ling, Liang Sun, Ying Xu, Chao Bian, Yuan He, Wei Lu, Ze Chen, Bing Sun

Open access · hybridAbstract read
In one paragraph

Article in Viral immunology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
4.0field-weighted citation impact, top 7% 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

20 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
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  4. Journal of veterinary research · 2019
    Article
  5. Advances in novel influenza vaccines: a patent review.Journal of microbiology (Seoul, Korea) · 2016
    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

9 authors at 3 institutions in 3 countries.

Ke XuMolecular Virus Unit, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, P.R. China.
Zhi-Yang Ling
Liang Sun
Ying Xu
Chao Bian
Yuan He
Wei Lu
Ze Chen
Bing Sun
Chinese Academy of Sciences · CNInstitut Pasteur of Shanghai · CNBiological E (India) · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Influenza A virus is highly variable and a major viral respiratory pathogen that can cause severe illness in humans. Therefore it is important to induce a sufficient immune response specific to current strains and to heterosubtypic viruses with vaccines. In this study, we developed a dual-promoter-based bivalent DNA vaccine that encodes both hemagglutinin (HA) and nucleoprotein (NP) proteins from a highly pathogenic A/Chicken/Henan/12/2004 (H5N1) virus. Our results show that the expression levels of HA and NP genes from the dual-promoter plasmid are similar to those seen when they are expressed individually in independent plasmids. When the bivalent DNA vaccine was inoculated via intramuscular injection and in vivo electroporation, high levels of both humoral and cellular immune responses were elicited against homologous H5N1 virus and heterosubtypic H9N2 virus. Furthermore, no obvious antigenic competition was observed between HA and NP proteins in the dual-promoter-based bivalent vaccine compared to monovalent vaccines. Our data suggest that a combination of influenza surface and internal viral genes in a dual-promoter-expressing plasmid may provide a new approach for developing a DNA vaccine that may protect not only specifically against a currently circulating strain, but also may cross-protect broadly against new heterosubtypic viruses.

Indexed as

AnimalsAntibodies, NeutralizingAntibodies, ViralCell ProliferationElectroporationFemaleGenetic VectorsHemagglutinin Glycoproteins, Influenza VirusInfluenza A Virus, H5N1 SubtypeInfluenza A Virus, H9N2 SubtypeInfluenza VaccinesInjections, IntramuscularLeukocytes, MononuclearMiceMice, Inbred BALB CNucleocapsid ProteinsAntibodies, NeutralizingAntibodies, Viralhemagglutinin, avian influenza A virusHemagglutinin Glycoproteins, Influenza VirusInfluenza VaccinesNP protein, Influenza A virusNucleocapsid ProteinsRNA-Binding ProteinsVaccines, DNAViral Core Proteins

Identifiers

PMID21319978
PMCPMC3034638
OpenAlexW1981002602

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.