Evidence map›Paper›PMID 34859134›Full record

ArticleBio-protocol2021

Production, Titration, Neutralisation, Storage and Lyophilisation of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Lentiviral Pseudotypes.

Cecilia Di Genova, Alex Sampson, Simon Scott, Diego Cantoni, Martin Mayora-Neto, Emma Bentley, Giada Mattiuzzo, Edward Wright, Mariliza Derveni, Bethany Auld and 8 more

Open access · greenAbstract read
In one paragraph

Article in Bio-protocol, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
3.3field-weighted citation impact, top 6% 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

42 citing papers in PubMed, 57 citations in OpenAlex.

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  15. Antiviral Effects of Secondary Metabolites fromPlants (Basel, Switzerland) · 2023
    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

18 authors at 3 institutions in 1 country.

Cecilia Di GenovaViral Pseudotype Unit (VPU Kent), Medway School of Pharmacy, University of Kent and Greenwich at Medway, Chatham Maritime, Kent, UK.
Alex SampsonLaboratory of Viral Zoonotics, Department of Veterinary Medicine, Cambridge University, Madingley Road, Cambridge, UK.
Simon ScottViral Pseudotype Unit (VPU Kent), Medway School of Pharmacy, University of Kent and Greenwich at Medway, Chatham Maritime, Kent, UK.
Diego CantoniViral Pseudotype Unit (VPU Kent), Medway School of Pharmacy, University of Kent and Greenwich at Medway, Chatham Maritime, Kent, UK.
Martin Mayora-NetoViral Pseudotype Unit (VPU Kent), Medway School of Pharmacy, University of Kent and Greenwich at Medway, Chatham Maritime, Kent, UK.
Emma BentleyDivision of Virology, National Institute for Biological Standards and Control (NIBSC), Potters Bar, Hertfordshire, UK.
Giada MattiuzzoDivision of Virology, National Institute for Biological Standards and Control (NIBSC), Potters Bar, Hertfordshire, UK.
Edward WrightViral Pseudotype Unit (VPU Sussex), School of Life Sciences, University of Sussex, Brighton, UK.
Mariliza DerveniViral Pseudotype Unit (VPU Sussex), School of Life Sciences, University of Sussex, Brighton, UK.
Bethany AuldViral Pseudotype Unit (VPU Sussex), School of Life Sciences, University of Sussex, Brighton, UK.
Bill T FerraraSchool of Science, University of Greenwich, Chatham Maritime, Kent, UK.
Dale HarrisonSchool of Science, University of Greenwich, Chatham Maritime, Kent, UK.
Mohamed SaidSchool of Science, University of Greenwich, Chatham Maritime, Kent, UK.
Arwa SelimSchool of Science, University of Greenwich, Chatham Maritime, Kent, UK.
Elinor ThompsonSchool of Science, University of Greenwich, Chatham Maritime, Kent, UK.
Craig ThompsonDepartment of Zoology, University of Oxford, Oxford, UK.
George CarnellLaboratory of Viral Zoonotics, Department of Veterinary Medicine, Cambridge University, Madingley Road, Cambridge, UK.
Nigel TempertonViral Pseudotype Unit (VPU Kent), Medway School of Pharmacy, University of Kent and Greenwich at Medway, Chatham Maritime, Kent, UK.
University of Greenwich · GBMedway School of Pharmacy · GBUniversity of Oxford · GB

Funding

Medical Research Council MC_PC_19060Medical Research Council MC_PC_20016
6 · The paper itself

Abstract

This protocol details a rapid and reliable method for the production and titration of high-titre viral pseudotype particles with the SARS-CoV-2 spike protein (and D614G or other variants of concern, VOC) on a lentiviral vector core, and use for neutralisation assays in target cells expressing angiotensin-converting enzyme 2 (ACE2) and transmembrane serine protease 2 (TMPRSS2). It additionally provides detailed instructions on substituting in new spike variants via gene cloning, lyophilisation and storage/shipping considerations for wide deployment potential. Results obtained with this protocol show that SARS-CoV-2 pseudotypes can be produced at equivalent titres to SARS-CoV and Middle East respiratory syndrome coronavirus (MERS-CoV) pseudotypes, neutralised by human convalescent plasma and monoclonal antibodies, and stored at a range of laboratory temperatures and lyophilised for distribution and subsequent application.

Indexed as

COVID-19Lentiviral pseudotypePseudotype lyophilisationSARS-CoV-2 coronavirusSpike variantsVirus neutralisation

Identifiers

PMID34859134
PMCPMC8595416
OpenAlexW3210544024

What OpenQuestion holds

Textmetadata
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.