Chicken DDX3X Activates IFN-β via the chSTING-chIRF7-IFN-β Signaling Axis
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ARF and p53 coordinate tumor suppression of an oncogenic IFN-β-STAT1-ISG15 signaling axis.
The ARF and p53 tumor suppressors are thought to act in a linear pathway to prevent cellular transformation in response to various oncogenic signals. Here, we show that loss of p53 leads to an increase in ARF protein levels, which function to limit the proliferation and tumorigenicity of p53-deficient cells by inhibiting an IFN-β-STAT1-ISG15 signaling axis. Human triple-negative breast cancer (...
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Stimulator of IFN genes (STING) is an adaptor that functions downstream of retinoic acid-inducible gene I (RIG-I) in mammalian cells; however, RIG-I is absent in chickens. We identified chicken STING (chSTING) as a critical mediator of virus-triggered type I IFN signaling in RIG-I-null chicken cells. Overexpression of chSTING in DF-1 cells inhibited Newcastle disease virus and avian influenza v...
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Retinoic acid-inducible gene I- (RIG-I-) like receptors (RLRs) have recently been identified as cytoplasmic sensors for viral RNA. RIG-I, a member of RLRs family, plays an important role in innate immunity. Although previous investigations have proved that RIG-I is absent in chickens, it remains largely unknown whether the chicken can respond to RIG-I ligand. In this study, the eukaryotic expre...
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ژورنال
عنوان ژورنال: Frontiers in Immunology
سال: 2019
ISSN: 1664-3224
DOI: 10.3389/fimmu.2019.00822