Evidence map›Paper›PMID 34650563›Full record

ArticleFrontiers in immunology2021

Evidence of SARS-CoV-2-Specific Memory B Cells Six Months After Vaccination With the BNT162b2 mRNA Vaccine.

Annalisa Ciabattini, Gabiria Pastore, Fabio Fiorino, Jacopo Polvere, Simone Lucchesi, Elena Pettini, Stefano Auddino, Ilaria Rancan, Miriam Durante, Michele Miscia and 4 more

Abstract read
In one paragraph

Article in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 1 pooled it
–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

81 citing papers in PubMed, 1 synthesis or guideline pooled it.

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21 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

14 authors.

Annalisa CiabattiniLaboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.
Gabiria PastoreLaboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.
Fabio FiorinoLaboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.
Jacopo PolvereLaboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.
Simone LucchesiLaboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.
Elena PettiniLaboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.
Stefano AuddinoLaboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.
Ilaria RancanDepartment of Medical Biotechnologies, University of Siena, Siena, Italy.
Miriam DuranteDepartment of Medical Biotechnologies, University of Siena, Siena, Italy.
Michele MisciaDepartment of Medical Biotechnologies, University of Siena, Siena, Italy.
Barbara RossettiDepartment of Medical Sciences, Infectious and Tropical Diseases Unit, University Hospital of Siena, Siena, Italy.
Massimiliano FabbianiDepartment of Medical Sciences, Infectious and Tropical Diseases Unit, University Hospital of Siena, Siena, Italy.
Francesca MontagnaniDepartment of Medical Biotechnologies, University of Siena, Siena, Italy.
Donata MedagliniLaboratory of Molecular Microbiology and Biotechnology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

SARS-CoV-2 mRNA vaccines have demonstrated high efficacy and immunogenicity, but limited information is currently available on memory B cell generation and long-term persistence. Here, we investigated spike-specific memory B cells and humoral responses in 145 subjects, up to 6 months after the BNT162b2 vaccine (Comirnaty) administration. Spike-specific antibodies peaked 7 days after the second dose and significant antibody titers and ACE2/RBD binding inhibiting activity were still observed after 6 months, despite a progressive decline over time. Concomitant to antibody reduction, spike-specific memory B cells, mostly IgG class-switched, increased in the blood of vaccinees and persisted 6 months after vaccination. Following the

Indexed as

AdultAgedAntibodies, ViralAntigens, ViralB-LymphocytesBNT162 VaccineCOVID-19COVID-19 VaccinesFemaleHumansImmunoglobulin GImmunologic MemoryMaleMiddle AgedmRNA VaccinesSARS-CoV-2Antibodies, ViralAntigens, ViralBNT162 VaccineCOVID-19 VaccinesImmunoglobulin GmRNA VaccinesSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2Vaccines, SyntheticBNT162b2 vaccineCOVID-19memory B cellsSARS-CoV-2vaccination

Identifiers

PMID34650563
PMCPMC8505800

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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.