Regulating Intracellular Antiviral Defense and Permissiveness to Hepatitis C Virus RNA Replication through a Cellular RNA Helicase, RIG-I
The University of Texas Southwestern Medical Center · The University of Texas Medical Branch at Galveston · +1 more institution
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…
Citation impact
- FWCI
- 22.47
- Percentile
- 100%
- References
- 35
Authors
8- RSRhea SumpterCorresponding
The University of Texas Southwestern Medical Center
- YLYueh–Ming Loo
The University of Texas Southwestern Medical Center
- EFEileen Foy
The University of Texas Southwestern Medical Center
- KLKui Li
The University of Texas Medical Branch at Galveston
- MYMitsutoshi Yoneyama
Tokyo Metropolitan Institute of Medical Science
Topics & keywords
- Permissiveness
- Biology
- RIG-I
- RNA Helicase A
- IRF3
- Interferon
- Virology
- Viral replication
- Good health and well-being