In this article we are going to explore the fascinating world of IRF3. From its impact on society to its implications in everyday life, IRF3 has become a topic of great interest in recent times. Throughout the next few lines, we will analyze different aspects related to IRF3, from its origin to its evolution today. Additionally, we will examine various opinions and perspectives on IRF3, with the aim of providing a comprehensive and enriching view on this topic. Without a doubt, IRF3 awakens endless emotions and reflections that are worth exploring in depth. Join us on this journey of discovery and learning about IRF3!
IRF3 is a member of the interferon regulatory transcription factor (IRF) family.[5] IRF3 was originally discovered as a homolog of IRF1 and IRF2. IRF3 has been further characterized and shown to contain several functional domains including a nuclear export signal, a DNA-binding domain, a C-terminal IRF association domain and several regulatory phosphorylation sites.[6] IRF3 is found in an inactive cytoplasmic form that upon serine/threonine phosphorylation forms a complex with CREBBP.[7] The complex translocates into the nucleus for the transcriptional activation of interferons alpha and beta, and further interferon-induced genes.[8]
IRF3 plays an important role in the innate immune system's response to viral infection.[9] Aggregated MAVS have been found to activate IRF3 dimerization.[10] A 2015 study shows phosphorylation of innate immune adaptor proteins MAVS, STING and TRIF at a conserved pLxIS motif recruits and specifies IRF3 phosphorylation and activation by the Serine/threonine-protein kinase TBK1, thereby activating the production of type-I interferons.[11] Another study has shown that IRF3-/- knockouts protect from myocardial infarction.[12] The same study identified IRF3 and the type I IFN response as a potential therapeutic target for post-myocardial infarction cardioprotection.[12]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ abHiscott J, Pitha P, Genin P, Nguyen H, Heylbroeck C, Mamane Y, Algarte M, Lin R (1999). "Triggering the interferon response: the role of IRF-3 transcription factor". J. Interferon Cytokine Res. 19 (1): 1–13. doi:10.1089/107999099314360. PMID10048763.
^Yoneyama M, Suhara W, Fujita T (2002). "Control of IRF-3 activation by phosphorylation". J. Interferon Cytokine Res. 22 (1): 73–6. doi:10.1089/107999002753452674. PMID11846977.
Yoneyama M, Suhara W, Fujita T (2002). "Control of IRF-3 activation by phosphorylation". J. Interferon Cytokine Res. 22 (1): 73–6. doi:10.1089/107999002753452674. PMID11846977.
Lowther WJ, Moore PA, Carter KC, Pitha PM (1999). "Cloning and functional analysis of the human IRF-3 promoter". DNA Cell Biol. 18 (9): 685–92. doi:10.1089/104454999314962. PMID10492399.