“…Paradoxically, in addition to its antiviral effect, IFN-I, particularly IFN-β, can also exert anti-inflammatory effects by enhancing the production of immunosuppressive cytokine IL-10, enhancing the expression of SOCS-1, downregulating matrix metalloproteinase–9 (MMP-9), or inducing IFI16-mediated inflammasome inhibition [ 26 ] (graphical abstract). Therefore, IFN-Is have been widely applied to treat autoimmune and inflammatory diseases, such as multiple sclerosis (MS) [ 5 ], familial Mediterranean fever (FMF) [ 43 ], and Behcet’s syndrome [ 44 ]. In this study, our transcription profile assay indicated that Poly6 treatment of SARS-CoV-2-infected Calu-3 cells led to the upregulation of the genes STAT1 , IRF3 , IRF9 , JAK1 , and IFI16 ( Figure 4 D and Figure S4 ) and of two immunosuppressive molecules, IL-10 and SOCS-1, but to the downregulation of pro-inflammatory genes such as IL-6 and IL-1β .…”