SARS-CoV2-mediated suppression of NRF2-signaling reveals potent antiviral and anti-inflammatory activity of 4-octyl-itaconate and dimethyl fumarate
- Nat Commun. 2020 Oct 2;11(1):4938. doi: 10.1038/s41467-020-18764-3.
- 1. Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark. [email protected].
- 2. Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark.
- 3. Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark.
- 4. Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas - Universidad Autónoma de Madrid), Nicolás Cabrera 1, 28049, Madrid, Spain.
- 5. Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, UK.
- 6. Omiics ApS, Åbogade 15, 8200, Aarhus N, Denmark.
- 7. Children's Hospital of Eastern Ontario Research Institute, Department of Biochemistry Microbiology and Immunology, University of Ottawa, Ottawa, ON, K1H 8L1, Canada.
- 8. Department of Chemistry, Aarhus University, Aarhus, Denmark.
- 9. Fox Chase Cancer Center, 333 Cottman Avenue, Philidelphia, PA, 19111-2497, USA.
- 10. Lars Bolund Institute of Regenerative Medicine, BGI-Shenzhen, Shenzhen, 518083, China.
- 11. Department of Biology, University of Copenhagen, 2100, Copenhagen, Denmark.
- 12. Department of Pediatrics and Adolescent Medicine, Division of Pediatric Neurology, University Medical Center Göttingen, 37075, Göttingen, Germany.
- 13. Istituto Pasteur Italia-Cenci Bolognetti Foundation, Viale Regina Elena 291, 00161, Rome, Italy.
- 14. Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
- 15. Department of Biomedicine, Aarhus Research Center for Innate Immunology, Aarhus University, Aarhus, Denmark. [email protected].
- # Contributed equally.
Antiviral strategies to inhibit Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV2) and the pathogenic consequences of COVID-19 are urgently required. Here, we demonstrate that the NRF2 antioxidant gene expression pathway is suppressed in biopsies obtained from COVID-19 patients. Further, we uncover that NRF2 agonists 4-octyl-itaconate (4-OI) and the clinically approved dimethyl fumarate (DMF) induce a cellular Antiviral program that potently inhibits replication of SARS-CoV2 across cell lines. The inhibitory effect of 4-OI and DMF extends to the replication of several Other pathogenic viruses including Herpes Simplex Virus-1 and-2, Vaccinia virus, and Zika virus through a type I interferon (IFN)-independent mechanism. In addition, 4-OI and DMF limit host inflammatory responses to SARS-CoV2 Infection associated with airway COVID-19 pathology. In conclusion, NRF2 agonists 4-OI and DMF induce a distinct IFN-independent Antiviral program that is broadly effective in limiting virus replication and in suppressing the pro-inflammatory responses of human pathogenic viruses, including SARS-CoV2.