Genomics

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IRF2 ChIP seq in mouse intestinal stem cells (ISCs)


ABSTRACT: To examine whether IRF2, a negative regulator of IFN signaling, constitutively represses IFN signaling by binding IFN-inducible gene loci in ISCs, we performed a genome-wide chromatin immunoprecipitation/DNA sequencing (ChIP-Seq) analysis of IRF2 in Lgr5 ISCs. We identified 381 binding peaks in these cells, including well-known IFN-inducible genes. Motif analysis showed significant enrichment of consensus-binding motifs for IRF transcription factors within these peaks. Within IRF2-occupied genes in ISCs, we identified 204 of experimentally validated IFN-inducible genes from Interferome database, and 10.8% of them were overlapped with the genes upregulated by type I IFN stimulation in ISCs. These findings indicated for the first time that IRF2 constitutively bound and repressed the sterile IFN signaling at the level of ISCs.

ORGANISM(S): Mus musculus

PROVIDER: GSE137260 | GEO | 2020/07/21

REPOSITORIES: GEO

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