Evidence map›Paper›PMID 32703420›Full record

ArticleBiochemical and biophysical research communications2020

Efficient production of recombinant SARS-CoV-2 spike protein using the baculovirus-silkworm system.

Ryosuke Fujita, Masato Hino, Takeru Ebihara, Takumi Nagasato, Akitsu Masuda, Jae Man Lee, Tsuguru Fujii, Hiroaki Mon, Kohei Kakino, Ryo Nagai and 4 more

Open access · greenAbstract read
In one paragraph

Article in Biochemical and biophysical research communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

27 citing papers in PubMed, 58 citations in OpenAlex.

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  10. Drug repurposing for the treatment of COVID-19.Journal of pharmacological sciences · 2022
    Review
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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

14 authors at 1 institution in 1 country.

Ryosuke FujitaLaboratory of Sanitary Entomology, Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan. Electronic address: r-fujita@agr.kyushu-u.ac.jp.
Masato HinoLaboratory of Sanitary Entomology, Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Takeru EbiharaLaboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Takumi NagasatoLaboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Akitsu MasudaLaboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Jae Man LeeLaboratory of Creative Science for Insect Industries, Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Tsuguru FujiiLaboratory of Creative Science for Insect Industries, Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Hiroaki MonLaboratory of Insect Genome Science, Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Kohei KakinoLaboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Ryo NagaiLaboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Miyu TanakaLaboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Yoshino TonookaLaboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Takato MoriyamaLaboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Takahiro KusakabeLaboratory of Insect Genome Science, Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
Kyushu University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the case of a new viral disease outbreak, an immediate development of virus detection kits and vaccines is required. For COVID-19, we established a rapid production procedure for SARS-CoV-2 spike protein (S protein) by using the baculovirus-silkworm expression system. The baculovirus vector-derived S proteins were successfully secreted to silkworm serum, whereas those formed insoluble structure in the larval fat body and the pupal cells. The ectodomain of S protein with the native sequence was cleaved by the host furin-protease, resulting in less recombinant protein production. The S protein modified in furin protease-target site was efficiently secreted to silkworm serum and was purified as oligomers, which showed immunoreactivity for anti-SARS-CoV-2 S2 antibody. By using the direct transfection of recombinant bacmid to silkworms, we achieved the efficient production of SARS-CoV-2 S protein as fetal bovine serum (FBS)-free system. The resultant purified S protein would be useful tools for the development of immunodetection kits, antigen for immunization for immunoglobulin production, and vaccines.

Indexed as

AnimalsBombyxCell LineCloning, MolecularFurinNucleopolyhedrovirusesRecombinant ProteinsSpike Glycoprotein, CoronavirusFurinRecombinant ProteinsSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2SARS-CoV-2Silkworm-BmNPV expression systemSpike protein

Identifiers

PMID32703420
PMCPMC7280120
OpenAlexW3034100629

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.