Evidence map›Paper›PMID 37221518›Full record

ArticleVirology journal2023

Evaluation of immunogenicity of gene-deleted and subunit vaccines constructed against the emerging pseudorabies virus variants.

Hong-Liang Zhang, Rui-Hua Zhang, Gang Liu, Gui-Mei Li, Feng-Xue Wang, Yong-Jun Wen, Hu Shan

Open access · goldAbstract read
In one paragraph

Article in Virology journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

5 citing papers in PubMed, 6 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

7 authors at 2 institutions in 1 country.

Hong-Liang ZhangMinistry of Agriculture Key Laboratory of Clinical Diagnosis and Treatment Technology in Animal Diseases, College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, P.R. China.
Rui-Hua ZhangMinistry of Agriculture Key Laboratory of Clinical Diagnosis and Treatment Technology in Animal Diseases, College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, P.R. China.
Gang LiuShandong Collaborative Innovation Center for Development of Veterinary Pharmaceuticals, College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, P.R. China.
Gui-Mei LiShandong Collaborative Innovation Center for Development of Veterinary Pharmaceuticals, College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, P.R. China.
Feng-Xue WangMinistry of Agriculture Key Laboratory of Clinical Diagnosis and Treatment Technology in Animal Diseases, College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, P.R. China.
Yong-Jun WenMinistry of Agriculture Key Laboratory of Clinical Diagnosis and Treatment Technology in Animal Diseases, College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, P.R. China. yongjunwen@126.com.
Hu ShanMinistry of Agriculture Key Laboratory of Clinical Diagnosis and Treatment Technology in Animal Diseases, College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, 010018, P.R. China. shanhu67@163.com.
Inner Mongolia Agricultural University · CNQingdao Agricultural University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPseudorabies (PR) (also called Aujeszky's disease, AD) is a serious infectious disease affecting pigs and other animals worldwide. The emergence of variant strains of pseudorabies virus (PRV) since 2011 has led to PR outbreaks in China and a vaccine that antigenically more closely matches these PRV variants could represent an added value to control these infections.

methodsThe objective of this study was to develop new live attenuated and subunit vaccines against PRV variant strains. Genomic alterations of vaccine strains were based on the highly virulent SD-2017 mutant strain and gene-deleted strains SD-2017ΔgE/gI and SD-2017ΔgE/gI/TK, which constructed using homologous recombination technology. PRV gB-DCpep (Dendritic cells targeting peptide) and PorB (the outer membrane pore proteins of N. meningitidis) proteins containing gp67 protein secretion signal peptide were expressed using the baculovirus system for the preparation of subunit vaccines. We used experimental animal rabbits to test immunogenicity to evaluate the effect of the newly constructed PR vaccines.

resultsCompared with the PRV-gB subunit vaccine and SD-2017ΔgE/gI inactivated vaccines, rabbits (n = 10) that were intramuscularly vaccinated with SD-2017ΔgE/gI/TK live attenuated vaccine and PRV-gB + PorB subunit vaccine showed significantly higher anti-PRV-specific antibodies as well as neutralizing antibodies and IFN-γ levels in serum. In addition, the SD-2017ΔgE/gI/TK live attenuated vaccine and PRV-gB + PorB subunit vaccine protected (90-100%) rabbits against homologous infection by the PRV variant strain. No obvious pathological damage was observed in these vaccinated rabbits.

conclusionsThe SD-2017ΔgE/gI/TK live attenuated vaccine provided 100% protection against PRV variant challenge. Interestingly, the subunit vaccines with gB protein linked to DCpep and PorB protein as adjuvant may also be a promising and effective PRV variant vaccine candidate.

Indexed as

GB virus CHerpesvirus 1, SuidPseudorabiesAdjuvants, ImmunologicAnimalsRabbitsSwineVaccines, AttenuatedVaccines, SubunitAdjuvants, ImmunologicVaccines, AttenuatedVaccines, SubunitGene-deleted vaccineImmune evaluationMutant strainPseudorabies virusSubunit vaccine

Identifiers

PMID37221518
PMCPMC10204249
OpenAlexW4377822330

What OpenQuestion holds

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LicenceCC BY
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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.