Evidence map›Paper›PMID 33969322›Full record

ArticleCell reports. Medicine2021

Longitudinal analysis of humoral immunity against SARS-CoV-2 Spike in convalescent individuals up to 8 months post-symptom onset.

Sai Priya Anand, Jérémie Prévost, Manon Nayrac, Guillaume Beaudoin-Bussières, Mehdi Benlarbi, Romain Gasser, Nathalie Brassard, Annemarie Laumaea, Shang Yu Gong, Catherine Bourassa and 14 more

Open access · goldAbstract read
In one paragraph

Article in Cell reports. Medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 133 papers.

0numbers the graph read from it
0cells of the map it votes in
133citing papers in PubMed
11.6field-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

133 citing papers in PubMed, 189 citations in OpenAlex.

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

24 authors at 4 institutions in 2 countries.

Sai Priya AnandDepartment of Microbiology and Immunology, McGill University, Montreal, QC H3A 2B4, Canada.
Jérémie PrévostCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Manon NayracCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Guillaume Beaudoin-BussièresCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Mehdi BenlarbiCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Romain GasserCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Nathalie BrassardCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Annemarie LaumaeaCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Shang Yu GongDepartment of Microbiology and Immunology, McGill University, Montreal, QC H3A 2B4, Canada.
Catherine BourassaCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Elsa Brunet-RatnasinghamCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Halima MedjahedCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Gabrielle Gendron-LepageCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Guillaume GoyetteCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Laurie GokoolCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Chantal MorrisseauCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Philippe BéginCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Valérie Martel-LaferrièreCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Cécile TremblayCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Jonathan RichardCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Renée BazinHéma-Québec, Affaires Médicales et Innovation, Quebec, QC G1V 5C3, Canada.
Ralf DuerrDepartments of Pathology and Microbiology, New York University School of Medicine, New York, NY 10016, USA.
Daniel E KaufmannCentre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada.
Andrés FinziDepartment of Microbiology and Immunology, McGill University, Montreal, QC H3A 2B4, Canada.
Centre Hospitalier de l’Université de Montréal · CACentre Hospitalier Universitaire Sainte-Justine · CAHéma-Québec · CANew York University · US

Funding

Novel HIV-1 Env trimer probes for efficient isolation of broadly neutralizing antibodiesR01AI122953 · NIAID · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI WU, XUELING · 2016 to 2019
$2.6M
NIAID NIH HHS R01 AI122953
6 · The paper itself

Abstract

With the recent approval of highly effective coronavirus disease 2019 (COVID-19) vaccines, functional and lasting immunity to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is currently under investigation as antibody levels in plasma were shown to decline during convalescence. Since the absence of antibodies does not equate to absence of immune memory, we evaluate the presence of SARS-CoV-2-specific memory B cells in convalescent individuals. Here, we report a longitudinal assessment of humoral immune responses on 32 donors up to 8 months post-symptom onset. Our observations indicate that anti-Spike and anti-receptor binding domain (RBD) immunoglobulin M (IgM) in plasma decay rapidly, whereas the reduction of IgG is less prominent. Neutralizing activity also declines rapidly when compared to Fc-effector functions. Concomitantly, the frequencies of RBD-specific IgM+ B cells wane significantly when compared to RBD-specific IgG+ B cells, which remain stable. Our results add to the current understanding of immune memory following SARS-CoV-2 infection, which is critical for secondary infection prevention and vaccine efficacy.

Indexed as

ADCCantibodiescoronavirusCOVID-19humoral responsesmemory B cellsneutralizationRBDSARS-CoV-2Spike glycoproteins

Identifiers

PMID33969322
PMCPMC8097665
OpenAlexW3159965848

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.