Cited by 2,401interferon and immune responsesImmune Response and InflammationRNA regulation and disease

Cardif is an adaptor protein in the RIG-I antiviral pathway and is targeted by hepatitis C virus

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Meylan, Etienne, Curran, Joseph, Hofmann, Kay, Moradpour, Darius, Binder, Marco, Bartenschlager, Ralf, Tschopp, Jürg·2005·Nature

Abstract

Antiviral immunity against a pathogen is mounted upon recognition by the host of virally associated structures. One of these viral 'signatures', double-stranded (ds) RNA, is a replication product of most viruses within infected cells and is sensed by Toll-like receptor 3 (TLR3) and the recently identified cytosolic RNA helicases RIG-I (retinoic acid inducible gene I, also known as Ddx58) and Mda5 (melanoma differentiation-associated gene 5, also known as Ifih1 or Helicard). Both helicases detect dsRNA, and through their protein-interacting CARD domains, relay an undefined signal resulting in the activation of the transcription factors interferon regulatory factor 3 (IRF3) and NF-kappaB. Here we describe Cardif, a new CARD-containing adaptor protein that interacts with RIG-I and recruits IKKalpha, IKKbeta and IKKvarepsilon kinases by means of its C-terminal region, leading to the activation of NF-kappaB and IRF3. Overexpression of Cardif results in interferon-beta and NF-kappaB promoter activation, and knockdown of Cardif by short interfering RNA inhibits RIG-I-dependent antiviral responses. Cardif is targeted and inactivated by NS3-4A, a serine protease from hepatitis C virus known to block interferon-beta production. Cardif thus functions as an adaptor, linking the cytoplasmic dsRNA receptor RIG-I to the initiation of antiviral programmes.

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  • MAVS localization to the outer mitochondrial membrane is indispensable for its function in RLR signaling.

    “A breakthrough in establishing the role for mitochondria in RLR-activated antiviral immunity was the identification of the RLR mitochondrial adaptor protein MAVS (mitochondrial antiviral-signaling protein)(Kawai et al., 2005; Meylan et al., 2005; Seth et al., 2005; Xu et al., 2005) localization to the outer mitochondrial membrane is indispensable for its function.”

    From Mitochondria in the Regulation of Innate and Adaptive Immunity (2015) · cites this paper as Meylan et al., 2005

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  1. Sun, Y. W. RIG-I, a Human Homolog Gene of RNA Helicase, is Induced by Retinoic Acid During the Differentiation of Acute Promyelocytic Leukemia Cell. Thesis, Shanghai Institute of Hematology, Shanghai Second Medical University (1997).

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Authors
Meylan, E., Curran, J., Hofmann, K., Moradpour, D., Binder, M., Bartenschlager, R., & Tschopp, J.
Affiliations
  • University of Lausanne (CH)
  • University of Geneva (CH)
  • Miltenyi Biotec (Germany) (DE)
  • Centre Hospitalier Universitaire Vaudois (CH)
  • Heidelberg University (DE)
Corresponding author
Tschopp, Jürg
Venue
Nature
Published
2005-09-21
Volume
437
Issue
7062
Pages
1167-1172
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2093579074
Cited by
2,401
References
31
Citations by year
2026: 37 · 2025: 59 · 2024: 52 · 2023: 72 · 2022: 68 · 2021: 109 · 2020: 99 · 2019: 101 · 2018: 91 · 2017: 110 · 2016: 102 · 2015: 121 · 2014: 160 · 2013: 167 · 2012: 144
FWCI
49.42
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Dépôt institutionnel de l'Université libre de Bruxelles (Université Libre de Bruxelles) (submittedVersion, other-oa)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
  • IRIS (submittedVersion)
  • SERVAL (Université de Lausanne) (submittedVersion)
Funders
  • National Science Foundation
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › interferon and immune responses
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
Keywords
Cardif, RIG-I, MDA5, hepatitis C virus, double-stranded RNA sensing, antiviral innate immunity, NF-κB activation, IRF3, interferon-beta, TLR3
MeSH terms
DEAD Box Protein 58, Viral Proteases, Amino Acid Sequence, Animals, Cell Line, DNA-Binding Proteins, Humans, Molecular Sequence Data, Protein Binding, Receptors, Immunologic, Serine Endopeptidases, Substrate Specificity, Transcription Factors, Hepacivirus, NF-kappa B, Interferon-beta, Protein Serine-Threonine Kinases, Viral Nonstructural Proteins, Protein Structure, Tertiary, RNA Helicases, Nucleoside-Triphosphatase, Adaptor Proteins, Signal Transducing, Interferon Regulatory Factor-3, Mice, I-kappa B Kinase, DEAD-box RNA Helicases

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