Evidence map›Paper›PMID 33077899›Full record

ArticleScientific reports2020

Rapid production of SARS-CoV-2 receptor binding domain (RBD) and spike specific monoclonal antibody CR3022 in Nicotiana benthamiana.

Kaewta Rattanapisit, Balamurugan Shanmugaraj, Suwimon Manopwisedjaroen, Priyo Budi Purwono, Konlavat Siriwattananon, Narach Khorattanakulchai, Oranicha Hanittinan, Wanuttha Boonyayothin, Arunee Thitithanyanont, Duncan R Smith and 1 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed
17.8field-weighted citation impact, top 1% 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

90 citing papers in PubMed, 144 citations in OpenAlex.

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30 more citing papers are in PubMed but not listed here.

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

11 authors at 3 institutions in 2 countries.

Kaewta RattanapisitResearch Unit for Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok, Thailand.
Balamurugan ShanmugarajResearch Unit for Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok, Thailand.
Suwimon ManopwisedjaroenDepartment of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand.
Priyo Budi PurwonoDepartment of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand.
Konlavat SiriwattananonDepartment of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand.
Narach KhorattanakulchaiDepartment of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand.
Oranicha HanittinanDepartment of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand.
Wanuttha BoonyayothinDepartment of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand.
Arunee ThitithanyanontDepartment of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand.
Duncan R SmithInstitute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom, Thailand.
Waranyoo PhoolcharoenResearch Unit for Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok, Thailand. Waranyoo.P@chula.ac.th.
Chulalongkorn University · THMahidol University · THAirlangga University · ID

Funding

Thailand Research Fund RSA6280006
6 · The paper itself

Abstract

Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is responsible for the ongoing global outbreak of coronavirus disease (COVID-19) which is a significant threat to global public health. The rapid spread of COVID-19 necessitates the development of cost-effective technology platforms for the production of vaccines, drugs, and protein reagents for appropriate disease diagnosis and treatment. In this study, we explored the possibility of producing the receptor binding domain (RBD) of SARS-CoV-2 and an anti-SARS-CoV monoclonal antibody (mAb) CR3022 in Nicotiana benthamiana. Both RBD and mAb CR3022 were transiently produced with the highest expression level of 8 μg/g and 130 μg/g leaf fresh weight respectively at 3 days post-infiltration. The plant-produced RBD exhibited specific binding to the SARS-CoV-2 receptor, angiotensin-converting enzyme 2 (ACE2). Furthermore, the plant-produced mAb CR3022 binds to SARS-CoV-2, but fails to neutralize the virus in vitro. This is the first report showing the production of anti-SARS-CoV-2 RBD and mAb CR3022 in plants. Overall these findings provide a proof-of-concept for using plants as an expression system for the production of SARS-CoV-2 antigens and antibodies or similar other diagnostic reagents against SARS-CoV-2 rapidly, especially during epidemic or pandemic situation.

Indexed as

Angiotensin-Converting Enzyme 2AnimalsAntibodies, MonoclonalAntibodies, ViralBetacoronavirusChlorocebus aethiopsCoronavirus InfectionsCOVID-19HumansNeutralization TestsNicotianaPandemicsPeptidyl-Dipeptidase APlant LeavesPneumonia, ViralProtein BindingACE2 protein, humanAngiotensin-Converting Enzyme 2Antibodies, MonoclonalAntibodies, ViralPeptidyl-Dipeptidase ARecombinant ProteinsSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2

Identifiers

PMID33077899
PMCPMC7573609
OpenAlexW3093466292

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.