Evidence map›Paper›PMID 37457694›Full record

ArticleFrontiers in immunology2023

mRNA-based SARS-CoV-2 Comirnaty vaccine elicits weak and short specific memory B cell response in individuals with no previous infection.

José L Casado, Pilar Vizcarra, Adrián Martín-Hondarza, Sandra Gómez-Maldonado, Magdalena Muedra-Sánchez, Judith Del Pino, Itria G Mirabella, Sara Martín-Colmenarejo, Johannes Haemmerle, Marina Fernández-Escribano and 1 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact, top 89% 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

0 citing papers in PubMed, 0 citations in OpenAlex.

No citing paper in PubMed yet.

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 1 country.

José L CasadoDepartment of Infectious Diseases, CIBERINFEC (Biomedical Research Center Network in Infectious Diseases), Madrid, Spain.
Pilar VizcarraDepartment of Infectious Diseases, CIBERINFEC (Biomedical Research Center Network in Infectious Diseases), Madrid, Spain.
Adrián Martín-HondarzaLaboratory of Immunovirology, University Hospital Ramón y Cajal, Madrid, Spain.
Sandra Gómez-MaldonadoDepartment of Infectious Diseases, CIBERINFEC (Biomedical Research Center Network in Infectious Diseases), Madrid, Spain.
Magdalena Muedra-SánchezDepartment of Occupational Safety and Health, University Hospital Ramón y Cajal, Madrid, Spain.
Judith Del PinoDepartment of Infectious Diseases, CIBERINFEC (Biomedical Research Center Network in Infectious Diseases), Madrid, Spain.
Itria G MirabellaDepartment of Occupational Safety and Health, University Hospital Ramón y Cajal, Madrid, Spain.
Sara Martín-ColmenarejoDepartment of Infectious Diseases, CIBERINFEC (Biomedical Research Center Network in Infectious Diseases), Madrid, Spain.
Johannes HaemmerleDepartment of Occupational Safety and Health, University Hospital Ramón y Cajal, Madrid, Spain.
Marina Fernández-EscribanoDepartment of Occupational Safety and Health, University Hospital Ramón y Cajal, Madrid, Spain.
Alejandro VallejoDepartment of Infectious Diseases, CIBERINFEC (Biomedical Research Center Network in Infectious Diseases), Madrid, Spain.
Centre for Biomedical Network Research on Rare Diseases · ESHospital Universitario Ramón y Cajal · ESInstituto Ramón y Cajal de Investigación Sanitaria · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: The dynamics of the memory B cell (MBC) repertoire after SARS-CoV-2 vaccination is crucial for assessing long-term immunity. We compare spike-specific MBC responses between SARS-CoV-2 unexposed and recovered individuals, and their impact on breakthrough infections during follow-up. Methods: Spike-specific MBC and T cells were quantified at inclusion and after two doses of mRNA vaccine in a longitudinal cohort of 85 naïve and 64 recovered participants (47 with positive serology and 17 with negative serology after infection). Results: At inclusion, there was minimal spike-specific MBC in naïve SARS-CoV-2 individuals. After the second vaccine dose, MBCs were significantly boosted in naïve individuals, but reached a significantly lower level than that observed even in unvaccinated SARS-CoV-2 convalescents (p<0.001). Furthermore, while the secondary memory B cell (MBC) population consisted of 100%, 33%, and 76% IgG Conclusions: MBCs were primed by mRNA-based vaccination in most cases, but SARS-CoV-2 naïve individuals had a blunted specific MBC response, and this was associated with a shorter time to breakthrough SARS-CoV-2 infection.

Indexed as

COVID-19COVID-19 VaccinesBNT162 VaccineHumansImmunoglobulin AImmunoglobulin GImmunoglobulin MMemory B CellsRNA, MessengerSARS-CoV-2BNT162 VaccineCOVID-19 VaccinesImmunoglobulin AImmunoglobulin GImmunoglobulin MRNA, MessengerB cell responseconvalescentsCOVID-19longterm immunitySARS-CoV-2

Identifiers

PMID37457694
PMCPMC10338867
OpenAlexW4382369684

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.