Evidence map›Paper›PMID 33711018›Full record

ArticlePLoS neglected tropical diseases2021

Zika virus-like particle vaccine protects AG129 mice and rhesus macaques against Zika virus.

Lo Vang, Christopher S Morello, Jason Mendy, Danielle Thompson, Darly Manayani, Ben Guenther, Justin Julander, Daniel Sanford, Amit Jain, Amish Patel and 3 more

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.7field-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

17 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Article
  3. Bioprofiling and vaccine development for Zika virus.Science China. Life sciences · 2025
    Review
  4. Review
  5. Article
  6. Promising Vaccine Formulations for Emerging Infectious Diseases.International journal of molecular sciences · 2025
    Review
  7. Article
  8. 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

13 authors at 3 institutions in 1 country.

Lo VangEmergent BioSolutions Inc., Gaithersburg, Maryland, United States of America.ORCID 0000-0001-9882-3184
Christopher S MorelloEmergent BioSolutions Inc., Gaithersburg, Maryland, United States of America.ORCID 0000-0001-8113-1173
Jason MendyEmergent BioSolutions Inc., Gaithersburg, Maryland, United States of America.
Danielle ThompsonEmergent BioSolutions Inc., Gaithersburg, Maryland, United States of America.ORCID 0000-0002-8072-4935
Darly ManayaniPaxVax Inc., San Diego, California, United States of America (PaxVax was acquired by Emergent BioSolutions Inc. Oct 2018).ORCID 0000-0003-1809-4589
Ben GuentherEmergent BioSolutions Inc., Gaithersburg, Maryland, United States of America.ORCID 0000-0002-4127-7079
Justin JulanderInstitute for Antiviral Research, Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, Utah, United States of America.
Daniel SanfordBattelle Biomedical Research Center, West Jefferson, Ohio, United States of America.
Amit JainEmergent BioSolutions Inc., Gaithersburg, Maryland, United States of America.
Amish PatelEmergent BioSolutions Inc., Gaithersburg, Maryland, United States of America.ORCID 0000-0002-0687-5700
Paul ShabramEmergent BioSolutions Inc., Gaithersburg, Maryland, United States of America.ORCID 0000-0002-6575-5784
Jonathan SmithPaxVax Inc., San Diego, California, United States of America (PaxVax was acquired by Emergent BioSolutions Inc. Oct 2018).
Jeff AlexanderEmergent BioSolutions Inc., Gaithersburg, Maryland, United States of America.ORCID 0000-0001-7066-3780
Emergent BioSolutions (United States) · USBattelle · USUtah State University · US

Funding

NIAID NIH HHS HHSN272201200003INIAID NIH HHS HHSN272201700041I
6 · The paper itself

Abstract

backgroundZika virus (ZIKV), a mosquito-borne flavivirus, is a re-emerging virus that constitutes a public health threat due to its recent global spread, recurrent outbreaks, and infections that are associated with neurological abnormalities in developing fetuses and Guillain-Barré syndrome in adults. To date, there are no approved vaccines against ZIKV infection. Various preclinical and clinical development programs are currently ongoing in an effort to bring forward a vaccine for ZIKV. METHODOLOGY/PRINCIPLE

findingsWe have developed a ZIKV vaccine candidate based on Virus-Like-Particles (VLPs) produced in HEK293 mammalian cells using the prM (a precursor to M protein) and envelope (E) structural protein genes from ZIKV. Transient transfection of cells via plasmid and electroporation produced VLPs which were subsequently purified by column chromatography yielding approximately 2mg/L. Initially, immunogenicity and efficacy were evaluated in AG129 mice using a dose titration of VLP with and without Alhydrogel 2% (alum) adjuvant. We found that VLP with and without alum elicited ZIKV-specific serum neutralizing antibodies (nAbs) and that titers correlated with protection. A follow-up immunogenicity and efficacy study in rhesus macaques was performed using VLP formulated with alum. Multiple neutralization assay methods were performed on immune sera including a plaque reduction neutralization test, a microneutralization assay, and a Zika virus Renilla luciferase neutralization assay. All of these assays indicate that following immunization, VLP induces high titer nAbs which correlate with protection against ZIKV challenge. CONCLUSIONS/SIGNIFICANCE: These studies confirm that ZIKV VLPs could be efficiently generated and purified. Upon VLP immunization, in both mice and NHPs, nAb was induced that correlate with protection against ZIKV challenge. These studies support translational efforts in developing a ZIKV VLP vaccine for evaluation in human clinical trials.

Indexed as

Adjuvants, ImmunologicAlum CompoundsAnimalsAntibodies, NeutralizingAntibodies, ViralFemaleHEK293 CellsHumansMacaca mulattaMaleMiceNeutralization TestsVaccines, Virus-Like ParticleViral VaccinesZika VirusZika Virus InfectionAdjuvants, ImmunologicAlum Compoundsaluminum sulfateAntibodies, NeutralizingAntibodies, ViralVaccines, Virus-Like ParticleViral Vaccines

Identifiers

PMID33711018
PMCPMC7990201
OpenAlexW3135785614

What OpenQuestion holds

Textmetadata
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.