Evidence map›Paper›PMID 33066262›Full record

ArticleVaccines2020

A Recombinant Zika Virus Envelope Protein with Mutations in the Conserved Fusion Loop Leads to Reduced Antibody Cross-Reactivity upon Vaccination.

Beatrice Sarah Berneck, Alexandra Rockstroh, Jasmin Fertey, Thomas Grunwald, Sebastian Ulbert

Open access · goldAbstract read
In one paragraph

Article in Vaccines, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.2field-weighted citation impact, top 11% 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

15 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Article
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  4. Low-Energy Electron Irradiation Inactivates Viruses in Serum and Maintains Growth-Promoting Properties in Cell Culture.Applied biosafety : journal of the American Biological Safety Association · 2025
    Article
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  14. Review
  15. Vaccine market and production capabilities in the Americas.Tropical diseases, travel medicine and vaccines · 2021
    Review
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

5 authors at 1 institution in 1 country.

Beatrice Sarah BerneckFraunhofer-Institute for Cell Therapy and Immunology, 04103 Leipzig, Germany.
Alexandra RockstrohFraunhofer-Institute for Cell Therapy and Immunology, 04103 Leipzig, Germany.
Jasmin FerteyFraunhofer-Institute for Cell Therapy and Immunology, 04103 Leipzig, Germany.ORCID 0000-0001-5424-3807
Thomas GrunwaldFraunhofer-Institute for Cell Therapy and Immunology, 04103 Leipzig, Germany.
Sebastian UlbertFraunhofer-Institute for Cell Therapy and Immunology, 04103 Leipzig, Germany.
Fraunhofer Institute for Cell Therapy and Immunology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Zika virus (ZIKV) is a zoonotic, human pathogenic, and mosquito-borne flavivirus. Its distribution is rapidly growing worldwide. Several attempts to develop vaccines for ZIKV are currently ongoing. Central to most vaccination approaches against flavivirus infections is the envelope (E) protein, which is the major target of neutralizing antibodies. Insect-cell derived, recombinantly expressed variants of E from the flaviviruses West Nile and Dengue virus have entered clinical trials in humans. Also for ZIKV, these antigens are promising vaccine candidates. Due to the structural similarity of flaviviruses, cross-reactive antibodies are induced by flavivirus antigens and have been linked to the phenomenon of antibody-dependent enhancement of infection (ADE). Especially the highly conserved fusion loop domain (FL) in the E protein is a target of such cross-reactive antibodies. In areas where different flaviviruses co-circulate and heterologous infections cannot be ruled out, this is of concern. To exclude the possibility that recombinant E proteins of ZIKV might induce ADE in infections with related flaviviruses, we performed an immunization study with an insect-cell derived E protein containing four mutations in and near the FL. Our data show that this mutant antigen elicits antibodies with equal neutralizing capacity as the wildtype equivalent. However, it induces much less serological cross-reactivity and does not cause ADE in vitro. These results indicate that mutated variants of the E protein might lead to ZIKV and other flavivirus vaccines with increased safety profiles.

Indexed as

dengue virusE-proteinfusion loopmutationsvaccineZika virus

Identifiers

PMID33066262
PMCPMC7712286
OpenAlexW3092831622

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.