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Updated: Jul 16, 2026

A High Resolution Method to Monitor Phosphorylation-dependent Activation of IRF3
Published on: January 24, 2016
Triggering the innate antiviral response through IRF-3 activation
1Lady Davis Institute for Medical Research-Jewish General Hospital, Departments of Microbiology & Immunology, Medicine, and Oncology, McGill University, Montreal H3T 1E2, Canada. john.hiscott@mcgill.ca
Abstract:
Rapid induction of type I interferon (IFN) expression is a central event in the establishment of the innate immune response against viral infection and requires the activation of multiple transcriptional proteins following engagement and signaling through Toll-like receptor-dependent and -independent pathways. The transcription factor interferon regulatory factor-3 (IRF-3) contributes to a first line of defense against viral infection by inducing the production of IFN-beta that in turn amplifies the IFN response and the development of antiviral activity. In murine knock-out models, the absence of IRF-3 and the closely related IRF-7 ablates IFN production and increases viral pathogenesis, thus supporting a pivotal role for IRF-3/IRF-7 in the development of the host antiviral response.
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