Transcriptomics

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IL-1B signaling in dendritic cells induces antiviral interferon responses


ABSTRACT: Activation of interferon-stimulated gene (ISG) responses is critical for control of viral infection. We recently identified that stimulation of the NLRP3 inflammasome and mobilization of the inflammatory cytokine IL-1β act as critical host restrictive pathways against West Nile virus (WNV) in a mechanism dependent on the regulation of ISGs. In order to define the mechanism by which IL-1β regulates these antiviral immune programs, we utilized global transcriptome analysis in myeloid cells, known targets of WNV replication to define gene signatures required for IL-1β driven antiviral responses. Surprisingly, we found IL-1β dependent activation of interferon-beta (IFN-β) and ISGs at late times following IL-1β treatment. Expression of these antiviral innate immune genes was found to be dependent on activation of IRF3 and appears to reflect a general shift in IL-1β signaling from an inflammatory response early following treatment to an anti-inflammatory type-I IFN mediated response at later times post-treatment. These data demonstrate that inflammatory and antiviral signals integrate to control viral infection. Strategies to co-opt these cytokine activated antiviral signatures can act as novel targeted therapeutic strategies tailored specifically to individual pathogens.

ORGANISM(S): Mus musculus

PROVIDER: GSE109069 | GEO | 2018/01/12

SECONDARY ACCESSION(S): PRJNA429565

REPOSITORIES: GEO

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