Crossref journal-article
American Society for Microbiology
Journal of Virology (235)
Abstract

ABSTRACT Virus-responsive signaling pathways that induce alpha/beta interferon production and engage intracellular immune defenses influence the outcome of many viral infections. The processes that trigger these defenses and their effect upon host permissiveness for specific viral pathogens are not well understood. We show that structured hepatitis C virus (HCV) genomic RNA activates interferon regulatory factor 3 (IRF3), thereby inducing interferon in cultured cells. This response is absent in cells selected for permissiveness for HCV RNA replication. Studies including genetic complementation revealed that permissiveness is due to mutational inactivation of RIG-I, an interferon-inducible cellular DExD/H box RNA helicase. Its helicase domain binds HCV RNA and transduces the activation signal for IRF3 by its caspase recruiting domain homolog. RIG-I is thus a pathogen receptor that regulates cellular permissiveness to HCV replication and, as an interferon-responsive gene, may play a key role in interferon-based therapies for the treatment of HCV infection.

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Sumpter, R., Loo, Y.-M., Foy, E., Li, K., Yoneyama, M., Fujita, T., Lemon, S. M., & Gale, M. (2005). Regulating Intracellular Antiviral Defense and Permissiveness to Hepatitis C Virus RNA Replication through a Cellular RNA Helicase, RIG-I. Journal of Virology, 79(5), 2689–2699.

Authors 8
  1. Rhea Sumpter (first)
  2. Yueh-Ming Loo (additional)
  3. Eileen Foy (additional)
  4. Kui Li (additional)
  5. Mitsutoshi Yoneyama (additional)
  6. Takashi Fujita (additional)
  7. Stanley M. Lemon (additional)
  8. Michael Gale (additional)
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Dates
Type When
Created 20 years, 6 months ago (Feb. 11, 2005, 12:46 p.m.)
Deposited 3 years, 5 months ago (March 5, 2022, 5:04 a.m.)
Indexed 2 weeks, 3 days ago (Aug. 6, 2025, 9:52 a.m.)
Issued 20 years, 5 months ago (March 1, 2005)
Published 20 years, 5 months ago (March 1, 2005)
Published Print 20 years, 5 months ago (March 1, 2005)
Funders 0

None

@article{Sumpter_2005, title={Regulating Intracellular Antiviral Defense and Permissiveness to Hepatitis C Virus RNA Replication through a Cellular RNA Helicase, RIG-I}, volume={79}, ISSN={1098-5514}, url={http://dx.doi.org/10.1128/jvi.79.5.2689-2699.2005}, DOI={10.1128/jvi.79.5.2689-2699.2005}, number={5}, journal={Journal of Virology}, publisher={American Society for Microbiology}, author={Sumpter, Rhea and Loo, Yueh-Ming and Foy, Eileen and Li, Kui and Yoneyama, Mitsutoshi and Fujita, Takashi and Lemon, Stanley M. and Gale, Michael}, year={2005}, month=mar, pages={2689–2699} }