| First Author | Carlin AF | Year | 2017 |
| Journal | Cell Rep | Volume | 21 |
| Issue | 6 | Pages | 1600-1612 |
| PubMed ID | 29117564 | Mgi Jnum | J:254202 |
| Mgi Id | MGI:6104174 | Doi | 10.1016/j.celrep.2017.10.054 |
| Citation | Carlin AF, et al. (2017) An IRF-3-, IRF-5-, and IRF-7-Independent Pathway of Dengue Viral Resistance Utilizes IRF-1 to Stimulate Type I and II Interferon Responses. Cell Rep 21(6):1600-1612 |
| abstractText | Interferon-regulatory factors (IRFs) are a family of transcription factors (TFs) that translate viral recognition into antiviral responses, including type I interferon (IFN) production. Dengue virus (DENV) and other clinically important flaviviruses are suppressed by type I IFN. While mice lacking the type I IFN receptor (Ifnar1(-/-)) succumb to DENV infection, we found that mice deficient in three transcription factors controlling type I IFN production (Irf3(-/-)Irf5(-/-)Irf7(-/-) triple knockout [TKO]) survive DENV challenge. DENV infection of TKO mice resulted in minimal type I IFN production but a robust type II IFN (IFN-gamma) response. Using loss-of-function approaches for various molecules, we demonstrate that the IRF-3-, IRF-5-, IRF-7-independent pathway predominantly utilizes IFN-gamma and, to a lesser degree, type I IFNs. This pathway signals via IRF-1 to stimulate interleukin-12 (IL-12) production and IFN-gamma response. These results reveal a key antiviral role for IRF-1 by activating both type I and II IFN responses during DENV infection. |
