Endogenous interferon synthesis pathways (IFN synthesis pathways)

Endogenous interferon synthesis pathways are essential innate immune mechanisms that detect viral, bacterial, or host-derived nucleic acids to initiate protective responses (Source: PubMed, PMID: 30635657). These pathways utilize pattern recognition receptors (PRRs) such as Toll-like receptors (TLR3, 7, 8, 9), RIG-I-like receptors (RIG-I, MDA5), and the cGAS-STING pathway to sense pathogen-associated molecular patterns (PAMPs) (Source: Nature Reviews Immunology, 2019). Upon activation, these sensors recruit adapter proteins like MyD88, TRIF, or MAVS, leading to the activation of kinases (e.g., TBK1) and transcription factors (e.g., IRF3, IRF7) that drive the expression of Type I and Type III interferons (Source: UniProt). In oncology, agonists of these pathways are used to turn "cold" tumors "hot" by stimulating the production of IFNs that recruit T cells, while in autoimmune diseases like systemic lupus erythematosus, these pathways are often overactive and represent targets for inhibition (Source: NIH, ClinicalTrials.gov). Therapeutic modulation of these pathways must be carefully managed to avoid systemic inflammatory toxicity or the development of chronic autoimmune conditions (Source: StatPearls).

Other names

Type I interferon induction pathwayInnate immune sensing pathwaysNucleic acid sensing pathwaysIFN production pathways

Agonism of pattern recognition receptors (PRRs) to stimulate interferon production; Antagonism of PRRs or signaling adapters to inhibit interferon production.