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Microarray of IRF2 overexpress in iKAP primary cultured cells (#3346)

ABSTRACT: Microarray of IRF2 overexpress in iKAP primary cultured cells (#3346)

PROVIDER: PRJNA431424 | ENA |

REPOSITORIES: ENA

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Microarray of IRF2 overexpress in iKAP primary cultured cells (#3346)

Project description:We used microarrays to study the global gene expression and identified differentially expressed genes in IRF2-overexpressing 3346 iKAP cells, aiming to identify genes and pathways that are regulated by IRF2.

2019-04-25 | GSE109579 | GEO

Expression Profiling of Primary Human Proerythroblasts (ProEs) After IRF2, IRF6, and MYB shRNA Knockdown

Project description:IRF2, IRF6, and MYB are candidate regulators of human erythropoiesis. We here examine primary CD34+ hematopoietic stem/progenitor cells (HSPCs)-derived erythroid progenitors with control, IRF2, IRF6, or MYB shRNA lentiviral transduction prior to differentiation. Gene expression microarray profiling datasets for MYB shRNA and control shRNA were obtained from Gene Expression Omnibus (GEO) under accession number GSE25678. The data were analyzed together with the datasets obtained in this study. Primary maturing adult erythroblasts were generated ex vivo from CD34+ hematopoietic stem/progenitor cells (HSPCs) using a serum-free two-phase liquid culture system. CD34+ HSPCs were transduced with lentiviruses containing shRNAs against IRF2 or IRF6 gene, selected and differentiated to proerythroblasts (ProEs). Cells were harvested at day 5 of differentiated and total RNA were extracted. This was used to hybridize to Affymetrix expression arrays using the HG-U133 Plus 2.0 platform.

2012-10-05 | E-GEOD-36988 | biostudies-arrayexpress

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IRF2 regulates macrophages apoptosis through a STAT1/3 and Caspase-1-dependent mechanism

Project description:Using microarray gene expression profiling of liver RNA samples rerived from IRF2+/+ and IRF2-/- mice treated with saline or LPS, we identified >40 genes that were significantly down-regulated in IRF2 -/- mice, including STAT3 which has been reported to regulate apoptosis. Keywords: compound treatment design We compared gene expression in IRF2+/+ and IRF2-/- mice treated with Saline or LPS for 3 or 6 hours. Two repeats were done for the LPS treatments. The total number of arrays is 6.

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IRF2 degradation tunes the innate immune response, Irf2 IFNb treated [ChIP-Seq]

Project description:The transcription factor IRF2 protects against skin inflammation in mice and humans but, paradoxically, promotes pyroptosis by inducing Gsdmd. How IRF2 activates some proinflammatory genes, but suppresses others is unclear. We show that skin inflammation in Irf2-deficient mice is driven by IRF1 activation of interferon-stimulated genes (ISGs). Chromatin profiling revealed that IRF1 and IRF2 occupy the same ISG regulatory sites, but as a weaker transcriptional activator, IRF2 limited ISG transcription by IRF1. Toll-like receptor signaling favored IRF1-driven transcription by inducing Irf1. In addition, IRF1 recruited the ubiquitin ligase SPOP to ISG sites, resulting in proteasomal degradation of IRF2. This shift from IRF2 to IRF1 occupancy enhanced ISG transcription. Collectively, these findings define a hierarchical transcriptional circuit in which IRF2 limits IRF1 activity under homeostatic conditions but is displaced during an immune response, allowing IRF1-dependent gene programs central to innate immunity and autoinflammation.

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IRF2 degradation tunes the innate immune response [scRNAseq]

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