Evidence map›Paper›PMID 34838537›Full record

ArticleJournal of virological methods2022

Production and use of encapsidated RNA mimics as positive control reagents for SARS-CoV-2 RT-qPCR diagnostics.

Hadrien Peyret, Elisabetta Groppelli, David Clark, Nicholas Eckersley, Tim Planche, Julian Ma, George P Lomonossoff

Abstract read
In one paragraph

Article in Journal of virological methods, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
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

9 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Isolation of Tobacco Mosaic Virus-Binding Peptides for Biotechnology Applications.Chembiochem : a European journal of chemical biology · 2022
    Article
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

7 authors.

Hadrien PeyretDepartment of Biochemistry and Metabolism, John Innes Centre, Norwich Research Park, Colney, NR4 7UH, UK. Electronic address: Hadrien.peyret@jic.ac.uk.
Elisabetta GroppelliInstitute for Infection and Immunity, St. George's University of London, Cranmer Terrace, Tooting, London, SW17 0RE, UK.
David ClarkInstitute for Infection and Immunity, St. George's University of London, Cranmer Terrace, Tooting, London, SW17 0RE, UK.
Nicholas EckersleyInstitute for Infection and Immunity, St. George's University of London, Cranmer Terrace, Tooting, London, SW17 0RE, UK.
Tim PlancheInstitute for Infection and Immunity, St. George's University of London, Cranmer Terrace, Tooting, London, SW17 0RE, UK.
Julian MaInstitute for Infection and Immunity, St. George's University of London, Cranmer Terrace, Tooting, London, SW17 0RE, UK.
George P LomonossoffDepartment of Biochemistry and Metabolism, John Innes Centre, Norwich Research Park, Colney, NR4 7UH, UK.

Funding

Biotechnology and Biological Sciences Research Council BBS/E/J/00000166
6 · The paper itself

Abstract

The current gold standard technique for SARS-CoV-2 diagnostics is hydrolysis probe-based RT-qPCR. Reliable testing requires reliable control reagents to monitor the efficiency of RNA extraction, reverse transcription and PCR amplification. Here we describe a custom RNA packaging system from the plant virus cowpea mosaic virus to produce virus-like particles that encapsidate specifically designed portions of the genome of SARS-CoV-2, the causative agent of COVID-19. These encapsidated mimics are highly stable particles which can be used either to spike patient swab samples for use as an in-tube extraction and reaction positive control in multiplex RT-qPCR, or alone as a side-by-side mock-positive control reagent. The selection of sequences in the packaged pseudogenomes ensures that these mimics are compatible with the most commonly used primer/probe combinations for SARS-CoV-2 diagnostics (including German Berlin Charité Hospital, American CDC, and Chinese CDC protocols). The plant transient expression system used to produce these encapsidated mimics is inherently low-cost, and sufficiently high-yielding that a single laboratory-scale preparation can provide enough positive control reagent for millions of tests.

Indexed as

COVID-19SARS-CoV-2HumansIndicators and ReagentsRNA, ViralSensitivity and SpecificityIndicators and ReagentsRNA, ViralCowpea mosaic virusDiagnosisIn-tube controlMultiplexingPseudogenomeRT-qPCRSARS-CoV-2Virus-like particles

Identifiers

PMID34838537
PMCPMC8611828

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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.