Evidence map›Paper›PMID 34509646›Full record

ArticleInfection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases2021

Pre-existing T cell-mediated cross-reactivity to SARS-CoV-2 cannot solely be explained by prior exposure to endemic human coronaviruses.

Cedric C S Tan, Christopher J Owen, Christine Y L Tham, Antonio Bertoletti, Lucy van Dorp, Francois Balloux

Open access · hybridAbstract read
In one paragraph

Article in Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
3.1field-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

39 citing papers in PubMed, 55 citations in OpenAlex.

  1. Article
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  8. Review
  9. Human coronavirus OC43-elicited CD4Nature communications · 2024
    Article
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  20. Functional SARS-CoV-2 cross-reactive CD4Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
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

6 authors at 2 institutions in 2 countries.

Cedric C S TanUCL Genetics Institute, University College London, Gower Street, London WC1E 6BT, United Kingdom. Electronic address: cedric.tan.18@ucl.ac.uk.
Christopher J OwenUCL Genetics Institute, University College London, Gower Street, London WC1E 6BT, United Kingdom.
Christine Y L ThamEmerging Infectious Diseases Program, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore.
Antonio BertolettiEmerging Infectious Diseases Program, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore.
Lucy van DorpUCL Genetics Institute, University College London, Gower Street, London WC1E 6BT, United Kingdom.
Francois BallouxUCL Genetics Institute, University College London, Gower Street, London WC1E 6BT, United Kingdom.
University College London · GBDuke-NUS Medical School · SG

Funding

Biotechnology and Biological Sciences Research Council BB/R01356X/1
6 · The paper itself

Abstract

T-cell-mediated immunity to SARS-CoV-2-derived peptides in individuals unexposed to SARS-CoV-2 has been previously reported. This pre-existing immunity was suggested to largely derive from prior exposure to 'common cold' endemic human coronaviruses (HCoVs). To test this, we characterised the sequence homology of SARS-CoV-2-derived T-cell epitopes reported in the literature across the full proteome of the Coronaviridae family. 54.8% of these epitopes had no homology to any of the HCoVs. Further, the proportion of SARS-CoV-2-derived epitopes with any level of sequence homology to the proteins encoded by any of the coronaviruses tested is well-predicted by their alignment-free phylogenetic distance to SARS-CoV-2 (Pearson's r = -0.958). No coronavirus in our dataset showed a significant excess of T-cell epitope homology relative to the proportion of expected random matches, given their genetic similarity to SARS-CoV-2. Our findings suggest that prior exposure to human or animal-associated coronaviruses cannot completely explain the T-cell repertoire in unexposed individuals that recognise SARS-CoV-2 cross-reactive epitopes.

Indexed as

Disease ResistanceImmunologic MemoryAnimalsAntibodies, ViralAntigens, ViralAsymptomatic DiseasesChiropteraCoronaviridaeCOVID-19Cross ReactionsEpitopes, T-LymphocyteEutheriaHumansImmunity, CellularPhylogenySARS-CoV-2Antibodies, ViralAntigens, ViralEpitopes, T-Lymphocyte

Identifiers

PMID34509646
PMCPMC8428999
OpenAlexW3199047933

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.