| Literature DB >> 23892079 |
Tyler C Moore1, Thomas M Petro.
Abstract
Understanding nitric oxide (NO) in innate anti-viral immunity and immune-mediated pathology is hampered by incomplete details of its transcriptional and signaling factors. We found in macrophages that IRF3, ERK MAP-kinases, and PKR are essential to NO production in response to RNA-virus mimic, poly I:C, a TLR3 agonist. ERK's role in NO induction may be through phosphorylation of serine-171 of IRF3 and expression of NO-inducing cytokines, IL-6 and IFN-β. However, these cytokines induced less NO in IRF3 knockout or knockdown macrophages. These findings show that ERK and IRF3 coordinate induction of NO by macrophages in response to stimulation of TLR3.Entities:
Keywords: BL/6; C57BL/6 mice; ERK; ERK MAP-kinase; IRF3; IRF3 deficient mice; IRF3KO; Interferon response factor-3; Interleukin-6; LPS; Macrophages; NF-κB; NO; Nitric oxide; ODN; PI3K; PKR; Poly I:C; TIR; TIR domain-containing adaptor-inducing IFN-β; TLR; TRIF; extracellular signal related kinase; interferon response factor 3; lipopolysaccharide; nitric oxide; nuclear factor κ-B; oligodeoxynucleotide; phosphoinositide-3-kinase; protein kinase R; toll like receptor; toll/IL-1 receptor
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Year: 2013 PMID: 23892079 PMCID: PMC3777643 DOI: 10.1016/j.febslet.2013.07.025
Source DB: PubMed Journal: FEBS Lett ISSN: 0014-5793 Impact factor: 4.124