Evidence map›Paper›PMID 36146847›Full record

ArticleViruses2022

Cross-Reactivity of SARS-CoV-2 Nucleocapsid-Binding Antibodies and Its Implication for COVID-19 Serology Tests.

Alexandra Rak, Svetlana Donina, Yana Zabrodskaya, Larisa Rudenko, Irina Isakova-Sivak

Open access · goldAbstract read
In one paragraph

Article in Viruses, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.0field-weighted citation impact, top 7% 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

24 citing papers in PubMed, 32 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

Alexandra RakInstitute of Experimental Medicine, Saint Petersburg 197022, Russia.ORCID 0000-0001-5552-9874
Svetlana DoninaInstitute of Experimental Medicine, Saint Petersburg 197022, Russia.
Yana ZabrodskayaInstitute of Experimental Medicine, Saint Petersburg 197022, Russia.ORCID 0000-0003-2012-9461
Larisa RudenkoInstitute of Experimental Medicine, Saint Petersburg 197022, Russia.
Irina Isakova-SivakInstitute of Experimental Medicine, Saint Petersburg 197022, Russia.ORCID 0000-0002-0107-9959
Institute of Experimental Medicine · RUPeter the Great St. Petersburg Polytechnic University · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The emergence of the new coronavirus SARS-CoV-2 in late 2019 led to the global pandemic COVID-19, causing a profound socioeconomic crisis. Adequate diagnostic tools need to be developed to control the ongoing spread of infection. Virus-specific humoral immunity in COVID-19 patients and those vaccinated with specific vaccines has been characterized in numerous studies, mainly using Spike protein-based serology tests. However, Spike protein and specifically its receptor-binding domain (RBD) are mutation-prone, suggesting the reduced sensitivity of the validated serology tests in detecting antibodies raised to variants of concern (VOC). The viral nucleocapsid (N) protein is more conserved compared to Spike, but little is known about cross-reactivity of the N-specific antibodies between the ancestral B.1 virus and different VOCs. Here, we generated recombinant N phosphoproteins from different SARS-CoV-2 strains and analyzed the magnitude of N-specific antibodies in COVID-19 convalescent sera using an in-house N-based ELISA test system. We found a strong positive correlation in the magnitude of anti-N (B.1) antibodies and antibodies specific to various VOCs in COVID-19-recovered patients, suggesting that the N-binding antibodies are highly cross-reactive, and the most immunogenic epitopes within this protein are not under selective pressure. Overall, our study suggests that the RBD-based serology tests should be timely updated to reflect the constantly evolving nature of the SARS-CoV-2 Spike protein, whereas the validated N-based test systems can be used for the analysis of sera from COVID-19 patients regardless of the strain that caused the infection.

Indexed as

COVID-19Spike Glycoprotein, CoronavirusAntibodies, NeutralizingAntibodies, ViralCOVID-19 SerotherapyEpitopesHumansImmunization, PassiveNucleocapsidPhosphoproteinsSARS-CoV-2Antibodies, NeutralizingAntibodies, ViralEpitopesPhosphoproteinsSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2antibody testsCOVID-19cross-reactivitynucleocapsid phosphoproteinrecombinant proteinSARS-CoV-2

Identifiers

PMID36146847
PMCPMC9502088
OpenAlexW4296109270

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.