Evidence map›Paper›PMID 33963333›Full record

ArticleNature immunology2021

TLR2 senses the SARS-CoV-2 envelope protein to produce inflammatory cytokines.

Min Zheng, Rajendra Karki, Evan Peter Williams, Dong Yang, Elizabeth Fitzpatrick, Peter Vogel, Colleen Beth Jonsson, Thirumala-Devi Kanneganti

Abstract read
In one paragraph

Article in Nature immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 402 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
402citing papers in PubMed, 2 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

402 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Mucosal immune response in biology, disease prevention and treatment.Signal transduction and targeted therapy · 2025
    Pooled it
  3. Myeloid TLR2 signaling amplifies immunopathology in influenza-infected murine neonates.American journal of respiratory cell and molecular biology · 2026
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342 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

8 authors.

Min ZhengDepartment of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA.
Rajendra KarkiDepartment of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA.ORCID http://orcid.org/0000-0003-4436-9128
Evan Peter WilliamsDepartment of Microbiology, Immunology, & Biochemistry, University of Tennessee Health Science Center, Memphis, TN, USA.
Dong YangUTHSC Regional Biocontainment Laboratory, University of Tennessee Health Science Center, Memphis, TN, USA.
Elizabeth FitzpatrickUTHSC Regional Biocontainment Laboratory, University of Tennessee Health Science Center, Memphis, TN, USA.
Peter VogelAnimal Resources Center and Veterinary Pathology Core, St Jude Children's Research Hospital, Memphis, TN, USA.ORCID http://orcid.org/0000-0002-7535-0545
Colleen Beth JonssonDepartment of Microbiology, Immunology, & Biochemistry, University of Tennessee Health Science Center, Memphis, TN, USA.
Thirumala-Devi KannegantiDepartment of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA. Thirumala-Devi.Kanneganti@StJude.org.ORCID http://orcid.org/0000-0002-6395-6443

Funding

Innate immune sensors, inflammasomes, and inflammasome-mediated processes in cancerR35CA253095 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI Thirumala-Devi Kanneganti · 2020 to 2026
$7.0M
Role of NLR Inflammasomes in Autoinflammatory Diseases and Host DefenseR01AR056296 · NIAMS · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI KANNEGANTI, THIRUMALA-DEVI · 2008 to 2022
$5.9M
The Non-Inflammasome NLRs in Immunity and Host defenseR01AI124346 · NIAID · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI Thirumala-Devi Kanneganti · 2016 to 2026
$5.8M
Inflammatory Caspases in Innate Immunity and InflammationR37AI101935 · NIAID · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI Thirumala-Devi Kanneganti · 2017 to 2026
$4.9M
Targeting innate immune pathways, and inflammatory cell death in cytokine-mediated diseasesR01AI160179 · NIAID · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI KANNEGANTI, THIRUMALA-DEVI · 2021 to 2025
$4.2M
Inflammatory Caspases in Innate Immunity and InflammationR01AI101935 · NIAID · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI KANNEGANTI, THIRUMALA-DEVI · 2012 to 2016
$2.2M
American Lebanese Syrian Associated Charities (ALSAC) N/ANCI NIH HHS R35 CA253095NIAID NIH HHS R01 AI101935NIAID NIH HHS R01 AI124346NIAID NIH HHS R01 AI160179NIAID NIH HHS R37 AI101935NIAMS NIH HHS R01 AR056296U.S. Department of Health & Human Services | National Institutes of Health (NIH) AI101935U.S. Department of Health & Human Services | National Institutes of Health (NIH) AI124346U.S. Department of Health & Human Services | National Institutes of Health (NIH) AR056296U.S. Department of Health & Human Services | National Institutes of Health (NIH) CA253095
6 · The paper itself

Abstract

The innate immune response is critical for recognizing and controlling infections through the release of cytokines and chemokines. However, severe pathology during some infections, including SARS-CoV-2, is driven by hyperactive cytokine release, or a cytokine storm. The innate sensors that activate production of proinflammatory cytokines and chemokines during COVID-19 remain poorly characterized. In the present study, we show that both TLR2 and MYD88 expression were associated with COVID-19 disease severity. Mechanistically, TLR2 and Myd88 were required for β-coronavirus-induced inflammatory responses, and TLR2-dependent signaling induced the production of proinflammatory cytokines during coronavirus infection independent of viral entry. TLR2 sensed the SARS-CoV-2 envelope protein as its ligand. In addition, blocking TLR2 signaling in vivo provided protection against the pathogenesis of SARS-CoV-2 infection. Overall, our study provides a critical understanding of the molecular mechanism of β-coronavirus sensing and inflammatory cytokine production, which opens new avenues for therapeutic strategies to counteract the ongoing COVID-19 pandemic.

Indexed as

AnimalsChlorocebus aethiopsCoronavirus Envelope ProteinsCOVID-19COVID-19 Drug TreatmentCytokine Release SyndromeCytokinesDisease Models, AnimalFemaleGene Expression ProfilingHumansImmunity, InnateLeukocytes, MononuclearMacrophagesMaleMiceCoronavirus Envelope ProteinsCytokinesenvelope protein, SARS-CoV-2MYD88 protein, humanMyd88 protein, mouseMyeloid Differentiation Factor 88TLR2 protein, humanTlr2 protein, mouseToll-Like Receptor 2

Identifiers

PMID33963333
PMCPMC8882317

What OpenQuestion holds

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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.