Evidence map›Paper›PMID 32054092›Full record

ArticleViruses2020

Generation of Simian Rotavirus Reassortants with VP4- and VP7-Encoding Genome Segments from Human Strains Circulating in Africa Using Reverse Genetics.

Alexander Falkenhagen, Corinna Patzina-Mehling, Ashish K Gadicherla, Amy Strydom, Hester G O'Neill, Reimar Johne

Open access · goldAbstract read
In one paragraph

Article in Viruses, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.5field-weighted citation impact, top 21% 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

18 citing papers in PubMed, 30 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

6 authors at 2 institutions in 2 countries.

Alexander FalkenhagenDepartment of Biological Safety, German Federal Institute for Risk Assessment, 12277 Berlin, Germany.
Corinna Patzina-MehlingDepartment of Biological Safety, German Federal Institute for Risk Assessment, 12277 Berlin, Germany.
Ashish K GadicherlaDepartment of Biological Safety, German Federal Institute for Risk Assessment, 12277 Berlin, Germany.
Amy StrydomDepartment of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein 9301, South Africa.
Hester G O'NeillDepartment of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein 9301, South Africa.
Reimar JohneDepartment of Biological Safety, German Federal Institute for Risk Assessment, 12277 Berlin, Germany.
Federal Institute for Risk Assessment · DEUniversity of the Free State · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human rotavirus A (RVA) causes acute gastroenteritis in infants and young children. The broad use of two vaccines, which are based on RVA strains from Europe and North America, significantly reduced rotavirus disease burden worldwide. However, a lower vaccine effectiveness is recorded in some regions of the world, such as sub-Saharan Africa, where diverse RVA strains are circulating. Here, a plasmid-based reverse genetics system was used to generate simian RVA reassortants with VP4 and VP7 proteins derived from African human RVA strains not previously adapted to cell culture. We were able to rescue 1/3 VP4 mono-reassortants, 3/3 VP7 mono-reassortants, but no VP4/VP7 double reassortant. Electron microscopy showed typical triple-layered virus particles for the rescued reassortants. All reassortants stably replicated in MA-104 cells; however, the VP4 reassortant showed significantly slower growth compared to the simian RVA or the VP7 reassortants. The results indicate that, at least in cell culture, human VP7 has a high reassortment potential, while reassortment of human VP4 from unadapted human RVA strains with simian RVA seems to be limited. The characterized reassortants may be useful for future studies investigating replication and reassortment requirements of rotaviruses as well as for the development of next generation rotavirus vaccines.

Indexed as

Genome, ViralAfricaAnimalsAntigens, ViralCapsid ProteinsCell Culture TechniquesCell LineGenotypeHaplorhiniHumansPhylogenyPlasmidsReassortant VirusesReverse GeneticsRotavirusRotavirus InfectionsAntigens, ViralCapsid ProteinsVP4 protein, RotavirusVP7 protein, Rotavirusplasmid-based reverse genetics systemreassortmentrotavirusSA11vaccineVP4VP7zoonosis

Identifiers

PMID32054092
PMCPMC7077283
OpenAlexW3005881184

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.