Evidence map›Paper›PMID 34499954›Full record

ArticleInternational journal of biological macromolecules2021

Mucosal IgA response elicited by intranasal immunization of Lactobacillus plantarum expressing surface-displayed RBD protein of SARS-CoV-2.

Letian Li, Maopeng Wang, Jiayi Hao, Jicheng Han, Tingting Fu, Jieying Bai, Mingyao Tian, Ningyi Jin, Guangze Zhu, Chang Li

Abstract read
In one paragraph

Article in International journal of biological macromolecules, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

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  13. A micro-sized vaccine based on recombinantActa pharmaceutica Sinica. B · 2023
    Article
  14. Article
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  16. A Vaccine of SARS-CoV-2 S Protein RBD Induces Protective Immunity.International journal of molecular sciences · 2022
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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

10 authors.

Letian LiResearch Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun 130122, China.
Maopeng WangInstitute of Virology, Wenzhou University, Wenzhou 325035, China.
Jiayi HaoResearch Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun 130122, China; College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China.
Jicheng HanAcademician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun 130021, China.
Tingting FuResearch Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun 130122, China.
Jieying BaiInstitute of Molecular Medicine, Peking University, Beijing 100871, China.
Mingyao TianResearch Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun 130122, China.
Ningyi JinResearch Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun 130122, China; Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun 130021, China.
Guangze ZhuAcademician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun 130021, China. Electronic address: zhuguangze820@126.com.
Chang LiResearch Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun 130122, China. Electronic address: lichang78@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Coronavirus Disease 2019 (COVID-19) caused by a novel betacoronavirus SARS-CoV-2 has been an ongoing global pandemic. Several vaccines have been developed to control the COVID-19, but the potential effectiveness of the mucosal vaccine remains to be documented. In this study, we constructed a recombinant L. plantarum LP18:RBD expressing the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein via the surface anchoring route. The amount of the RBD protein was maximally expressed under the culture condition with 200 ng/mL of inducer at 33 °C for 6 h. Further, we evaluated the immune response in mice via the intranasal administration of LP18:RBD. The results showed that the LP18:RBD significantly elicited RBD-specific mucosal IgA antibodies in respiratory tract and intestinal tract. The percentages of CD3 + CD4+ T cells in spleens of mice administrated with the LP18:RBD were also significantly increased. This indicated that LP18:RBD could induce a humoral immune response at the mucosa, and it could be used as a mucosal vaccine candidate against the SARS-CoV-2 infection. We provided the first experimental evidence that the recombinant L. plantarum LP18:RBD could initiate immune response in vivo, which implies that the mucosal immunization using recombinant LAB system could be a promising vaccination strategy to prevent the COVID-19 pandemic.

Indexed as

Immunity, MucosalLactiplantibacillus plantarumAdministration, IntranasalAnimalsAntibodies, ViralCOVID-19Gene ExpressionImmunoglobulin AMiceMice, Inbred BALB CProtein DomainsRecombinant ProteinsSARS-CoV-2Spike Glycoprotein, CoronavirusAntibodies, ViralImmunoglobulin ARecombinant ProteinsSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2Intranasal immunizationLactobacillus plantarumMucosal vaccineReceptor-binding domain (RBD)SARS-CoV-2

Identifiers

PMID34499954
PMCPMC8421092

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Registered trials

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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.