Evidence map›Paper›PMID 25520151›Full record

ArticleBMC microbiology2014

Tetravalent recombinant dengue virus-like particles as potential vaccine candidates: immunological properties.

Yan Liu, Junmei Zhou, Zhizhun Yu, Danyun Fang, Chunyun Fu, Xun Zhu, Zhenjian He, Huijun Yan, Lifang Jiang

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2014. 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
1.6field-weighted citation impact, top 16% 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, 34 citations in OpenAlex.

  1. Review
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  13. Review
  14. Development of Peptide Vaccines in Dengue.Current pharmaceutical design · 2018
    Review
  15. Article
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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 1 institution in 1 country.

Yan LiuDepartment of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, 510080, People's Republic of China. liuyan.0510@163.com.
Junmei ZhouDepartment of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, 510080, People's Republic of China. junmeizh@126.com.
Zhizhun YuDepartment of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, 510080, People's Republic of China. zhizhun.163@163.com.
Danyun FangDepartment of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, 510080, People's Republic of China. angdy@mail.sysu.edu.cn.
Chunyun FuDepartment of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, 510080, People's Republic of China. fuchunyun2008@sina.com.
Xun ZhuDepartment of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, 510080, People's Republic of China. zhuxun8@mail.sysu.edu.cn.
Zhenjian HeDepartment of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, 510080, People's Republic of China. hzj100@163.com.
Huijun YanDepartment of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, 510080, People's Republic of China. yanhj@mail.sysu.edu.cn.
Lifang JiangDepartment of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, 510080, People's Republic of China. jianglf909@163.com.
Sun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCurrently, a licensed vaccine for Dengue Virus (DENV) is not yet available. Virus-like particles (VLP) have shown considerable promise for use as vaccines and have many advantages compared to many other types of viral vaccines. VLPs have been found to have high immunogenic potencies, providing protection against various pathogens.

resultsIn the current study, four DENV-VLP serotypes were successfully expressed in Pichia pastoris, based on co-expression of the prM and E proteins. The effects of a tetravalent VLP vaccine were also examined. Immunization with purified, recombinant, tetravalent DENV1-4 VLPs induced specific antibodies against all DENV1-4 antigens in mice. The antibody titers were higher after immunization with the tetravalent VLP vaccine compared to titers after immunization with any of the dengue serotype VLPs alone. Indirect immunofluorescence assay (IFA) results indicated that sera from VLP immunized mice recognized the native viral antigens. TNF-α and IL-10 were significantly higher in mice immunized with tetravalent DENV-VLP compared to those mice received PBS. The tetravalent VLP appeared to stimulate neutralizing antibodies against each viral serotype, as shown by PRNT50 analysis (1:32 against DENV1 and 2, and 1:16 against DENV3 and 4). The highest titers with the tetravalent VLP vaccine were still a little lower than the monovalent VLP against the corresponding serotype. The protection rates of tetravalent DENV-VLP immune sera against challenges with DENV1 to 4 serotypes in suckling mice were 77, 92, 100, and 100%, respectively, indicating greater protective efficacy compared with monovalent immune sera.

conclusionsOur results provide an important basis for the development of the dengue VLP as a promising non-infectious candidate vaccine for dengue infection.

Indexed as

AnimalsAntibodies, NeutralizingAntibodies, ViralDengueDengue VaccinesDengue VirusFemaleFluorescent Antibody Technique, IndirectGene ExpressionImmunization, PassiveInterleukin-10Mice, Inbred BALB CNeutralization TestsPichiaRecombinant ProteinsSurvival AnalysisAntibodies, NeutralizingAntibodies, ViralDengue VaccinesInterleukin-10prM protein, FlavivirusRecombinant ProteinsTumor Necrosis Factor-alphaVaccines, SyntheticVaccines, Virus-Like ParticleViral Envelope Proteins

Identifiers

PMID25520151
PMCPMC4396058
OpenAlexW2031161130

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.