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IRF-3, IRF-5, and IRF-7 coordinately regulate the type I IFN response in myeloid dendritic cells downstream of MAVS signaling

ABSTRACT: Myeloid dendritic cells from WT, Irf3-/-xIrf7-/-, Irf3-/-xIrf5-/-xIrf7-/-, Mavs-/- (IPS1-/-)and Ifnar-/- mice were infected with West Nile virus to assess the contributions of specific signaling and transcription factors in initiating the antiviral response RPMI + rmGM-CSF purified bone marrow derived myeloid DC (mDC), mock and WNV infected with insect derived virus and RNA isolated at 24 hours post infection . Each genotype has matched mock and infected samples. n=6 for WT mock, WT infected, IFNAR mock, IFNAR infected, IRF3x7 infected; n=5 IRF3x7 infected; n=3 IRF3x5x7 mock, IRF3x5x7 infected, MAVS mock, MAVS infected. RNA was prepared using the Illumina bead station assay and hybridized to Illumina RefSeq-8 V2 BeadChips. Note: MAVS=IPS1

ORGANISM(S): Mus musculus

SUBMITTER: Peter Wilkinson 

PROVIDER: E-GEOD-41355 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Although the transcription factors IRF-3 and IRF-7 are considered master regulators of type I interferon (IFN) induction and IFN stimulated gene (ISG) expression, Irf3(-/-)×Irf7(-/-) double knockout (DKO) myeloid dendritic cells (mDC) produce relatively normal levels of IFN-β after viral infection. We generated Irf3(-/-)×Irf5(-/-)×Irf7(-/-) triple knockout (TKO) mice to test whether IRF-5 was the source of the residual induction of IFN-β and ISGs in mDCs. In pathogenesis studies with two unrelat  ...[more]

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