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Deciphering the Fine-Tuning of the Retinoic Acid-Inducible Gene-I Pathway in Teleost Fish and Beyond

Abstract : Interferons are the first lines of defense against viral pathogen invasion during the early stages of infection. Their synthesis is tightly regulated to prevent excessive immune responses and possible deleterious effects on the host organism itself. The RIG-I-like receptor signaling cascade is one of the major pathways leading to the production of interferons. This pathway amplifies danger signals and mounts an appropriate innate response but also needs to be finely regulated to allow a rapid return to immune homeostasis. Recent advances have characterized different cellular factors involved in the control of the RIG-I pathway. This has been most extensively studied in mammalian species; however, some inconsistencies remain to be resolved. The IFN system is remarkably well conserved in vertebrates and teleost fish possess all functional orthologs of mammalian RIG-I-like receptors as well as most downstream signaling molecules. Orthologs of almost all mammalian regulatory components described to date exist in teleost fish, such as the widely used zebrafish, making fish attractive and powerful models to study in detail the regulation and evolution of the RIG-I pathway.
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https://hal.inrae.fr/hal-03278355
Contributor : Stéphane Biacchesi <>
Submitted on : Monday, July 5, 2021 - 3:01:13 PM
Last modification on : Saturday, August 14, 2021 - 3:25:02 AM

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Raphaël Jami, Emilie Mérour, Annie Lamoureux, Julie Bernard, Jean Millet, et al.. Deciphering the Fine-Tuning of the Retinoic Acid-Inducible Gene-I Pathway in Teleost Fish and Beyond. Frontiers in Immunology, Frontiers, 2021, 12, pp.1-11. ⟨10.3389/fimmu.2021.679242⟩. ⟨hal-03278355⟩

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