Interferon signaling subgraph
RIG-I is widely known as a PRR that senses RNA and that signals via mitochondrial antiviral signalling protein (MAVS) to induce an interferon (IFN) response2, and IFI16 has been suggested to be a DNA sensor that signals via the protein STING (stimulator of IFN genes; also known as TMEM173) to generate an IFN response23. PubMed:23702978
One checkpoint is that bacterial mRNA from live bacteria (also known as vita-PAMPs)44 activates NLRP3; the other checkpoint is that TLR4- and TRIF (TIR domain-containing adaptor protein inducing IFNβ)-dependent signalling — which is triggered by bacterial lipopolysaccharide (LPS) — mediate the secretion of type I IFNs, inducing pro-caspase 11 expression and activation by triggering the IFNα/β receptor (IFNAR) (FIG. 1). PubMed:23702978
RIG-I is widely known as a PRR that senses RNA and that signals via mitochondrial antiviral signalling protein (MAVS) to induce an interferon (IFN) response2, and IFI16 has been suggested to be a DNA sensor that signals via the protein STING (stimulator of IFN genes; also known as TMEM173) to generate an IFN response23. PubMed:23702978
In addition, T cell-derived IFNγ has been shown to downregulate the activity of NLRP3 via activation of inducible nitric oxide synthase (iNOS) in a mouse model of tuberculosis71; nitric oxide (NO) induces NLRP3 nitrosylation and thereby inhibits NLRP3 activity. PubMed:23702978
In addition, type I IFNs can reduce IL-1β and IL-18 release by functioning at two levels. PubMed:23702978
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If you find BEL Commons useful in your work, please consider citing: Hoyt, C. T., Domingo-Fernández, D., & Hofmann-Apitius, M. (2018). BEL Commons: an environment for exploration and analysis of networks encoded in Biological Expression Language. Database, 2018(3), 1–11.