Analysis of WT and IRF1-deficient Th9 cell transcriptomes in the presence of IFN-gamma
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE96818 | GEO | 2017/04/05
SECONDARY ACCESSION(S): PRJNA379814
REPOSITORIES: GEO
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Project description:The goal of this study was to to compare changes in chromatin status evoked by IFN-g signalling in Th9 cells. Furthermore, the binding of transcription factors IRF1 and IRF4 in Th9 cells were analysed to analyse whether IRF4 abundance is affected by IFN-g-induced IRF1 binding at regulatory regions in Th9 cells.
2017-03-17 | GSE96699 | GEO
Project description:Inborn errors of human IFN-γ-dependent macrophagic immunity underlie mycobacterial diseases, whereas inborn errors of IFN-α/β-dependent intrinsic immunity underlie viral diseases. Both types of IFNs induce the transcription factor IRF1. We describe unrelated children with inherited complete IRF1 deficiency and early-onset, multiple, life-threatening diseases caused by weakly virulent mycobacteria and related intramacrophagic pathogens. These children have no history of severe viral disease, despite exposure to many viruses, including SARS-CoV-2, which is life-threatening in individuals with impaired IFN-α/β immunity. In leukocytes or fibroblasts stimulated in vitro, IRF1-dependent responses to IFN-γ are, both quantitatively and qualitatively, much stronger than those to IFN-α/β. Moreover, IRF1-deficient mononuclear phagocytes do not control mycobacteria and related pathogens normally when stimulated with IFN-γ. By contrast, IFN-α/β-dependent intrinsic immunity to nine viruses, including SARS-CoV-2, is almost normal in IRF1-deficient fibroblasts. Human IRF1 is essential for IFN-γ-dependent macrophagic immunity to mycobacteria, but largely redundant for IFN-α/β-dependent antiviral immunity.
2023-05-12 | GSE203220 | GEO
Project description:Inborn errors of human IFN-γ immunity underlie mycobacterial diseases, whereas inborn errors of IFN-/ immunity underlie viral diseases. Both types of IFNs induce the transcription factor IRF1. We describe two unrelated children with inherited complete IRF1 deficiency and early-onset, multiple, life-threatening diseases caused by weakly virulent mycobacteria. These children have no history of severe viral disease, despite exposure to many viruses, including SARS-CoV-2, which is life-threatening in individuals with impaired IFN-/ immunity. The IRF1-dependent cellular responses to IFN-γ are, both quantitatively and qualitatively, much greater than those to IFN-/ in vitro. Monocyte- and iPSC-derived macrophages from the two patients show no upregulation of at least 20% of the target genes normally induced by IFN-γ. By contrast, cell-intrinsic IFN-/ immunity to diverse viruses, including SARS-CoV-2, is intact. Human IRF1 is, thus, largely redundant for antiviral IFN-/ immunity. By contrast, human IRF1 is essential for IFN-γ immunity to mycobacteria in myeloid cells.
2023-01-12 | GSE218033 | GEO
Project description:Inborn errors of human IFN-γ immunity underlie mycobacterial diseases, while inborn errors of IFN-a/b immunity underlie viral diseases. Both types of IFNs induce the transcription factor IRF1. We describe two unrelated children with inherited complete IRF1 deficiency and early-onset, multiple, life-threatening diseases caused by weakly virulent mycobacteria. They have no history of severe viral disease, despite exposure to many viruses, including SARS-CoV-2 that is life-threatening in individuals with deficient IFN-a/b. There is a much greater IRF1-dependent response to IFN-γ than IFN-a/b in vitro, both quantitatively and qualitatively. Monocyte-derived macrophages and iPSC-derived macrophages of both patients do not upregulate at least 40% of target genes normally induced by IFN-γ. In contrast, cell-intrinsic IFN-a/b immunity to a wide range of viruses, including HIV and SARS-CoV-2, is maintained. Human IRF1 is thus largely redundant for antiviral IFN-a/b immunity across cell types. By contrast, human IRF1 is essential for IFN-γ immunity to mycobacteria in mononuclear myeloid cells.
2023-01-12 | GSE216488 | GEO
Project description:Inborn errors of human IFN-γ immunity underlie mycobacterial diseases, while inborn errors of IFN-a/b immunity underlie viral diseases. Both types of IFNs induce the transcription factor IRF1. We describe two unrelated children with inherited complete IRF1 deficiency and early-onset, multiple, life-threatening diseases caused by weakly virulent mycobacteria. They have no history of severe viral disease, despite exposure to many viruses, including SARS-CoV-2 that is life-threatening in individuals with deficient IFN-a/b. There is a much greater IRF1-dependent response to IFN-γ than IFN-a/b in vitro, both quantitatively and qualitatively. Monocyte-derived macrophages and iPSC-derived macrophages of both patients do not upregulate at least 40% of target genes normally induced by IFN-γ. In contrast, cell-intrinsic IFN-a/b immunity to a wide range of viruses, including HIV and SARS-CoV-2, is maintained. Human IRF1 is thus largely redundant for antiviral IFN-a/b immunity across cell types. By contrast, human IRF1 is essential for IFN-γ immunity to mycobacteria in mononuclear myeloid cells.
2023-01-12 | GSE216486 | GEO
Project description:We report the RNA sequencig results for the constitutive and IFN inducible gene expression in respiratory epithelial cell line (BEAS-2B). We generated IRF1 KO BEAS-2B cells using CRISPR method. Parent and IRF1 KO cells were treated with IFNβ or IFNλ1 for 24h and subjected for RNA isolation and sequencing in Illumina platform. Three independent biological experiments were used for RNA sequenccing.
2019-06-10 | GSE114284 | GEO
Project description:Inborn errors of human IFN-γ immunity underlie mycobacterial diseases, whereas inborn errors of IFN-a/b immunity underlie viral diseases. Both types of IFNs induce the transcription factor IRF1. We describe two unrelated children with inherited complete IRF1 deficiency and early-onset, multiple, life-threatening diseases caused by weakly virulent mycobacteria. These children have no history of severe viral disease, despite exposure to many viruses, including SARS-CoV-2, which is life-threatening in individuals with impaired IFN-a/b immunity. The IRF1-dependent cellular responses to IFN-γ are, both quantitatively and qualitatively, much greater than those to IFN-a/b in vitro. Monocyte- and iPSC-derived macrophages from the two patients show no upregulation of at least 20% of the target genes normally induced by IFN-γ. By contrast, cell-intrinsic IFN-a/b immunity to diverse viruses, including SARS-CoV-2, is intact. Human IRF1 is, thus, largely redundant for antiviral IFN-a/b immunity. By contrast, human IRF1 is essential for IFN-γ immunity to mycobacteria in myeloid cells.
2023-01-19 | PXD037759 | Pride
Project description:Oncolytic viruses exploit common molecular changes in cancer cells, which are not present in normal cells, to target and kill cancer cells. Ras transformation and defects in type I interferon (IFN)-mediated antiviral responses are known to be the major mechanisms underlying viral oncolysis. Previously, we demonstrated that oncogenic RAS/Mitogen-activated protein kinase kinase (Ras/MEK) activation suppresses the transcription of many IFN-inducible genes in human cancer cells, suggesting that Ras transformation underlies type I IFN defects in cancer cells. Here, we investigated how Ras/MEK downregulates IFN-induced transcription. By conducting promoter deletion analysis of IFN-inducible genes, namely guanylate-binding protein 2 and IFN gamma inducible protein 47 (Ifi47), we identified the IFN regulatory factor 1 (IRF1) binding site as the promoter region responsible for the regulation of transcription by MEK. MEK inhibition promoted transcription of the IFN-inducible genes in wild type mouse embryonic fibroblasts (MEFs), but not in IRF1?/? MEFs, showing that IRF1 is involved in MEK-mediated downregulation of IFN-inducible genes. Furthermore, IRF1 protein expression was lower in RasV12 cells compared with vector control NIH3T3 cells, but was restored to equivalent levels by inhibition of MEK. Similarly, the restoration of IRF1 expression by MEK inhibition was observed in human cancer cells. IRF1 re-expression in human cancer cells caused cells to become resistant to infection by the oncolytic vesicular stomatitis virus strain. Together, this work demonstrates that Ras/MEK activation in cancer cells downregulates transcription of IFN-inducible genes by targeting IRF1 expression, resulting in increased susceptibility to viral oncolysis. RNA was isolated from RasV12 transformed NIH/3T3 cells (RasV12 cells) treated with 20?M U0126 or 500U/ml IFN-?, or left untreated, for 6 hours, triplicate biological samples (9 samples).
2014-11-13 | E-GEOD-49469 | biostudies-arrayexpress
Project description:IRF1 regulates IFN dependent and independent gene expression
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Project description:In the subcutaneous tumor tissue of the IFN-γ-stimulated group, pathways related to suppression, antigen presentation, and cell adhesion molecules were significantly upregulated.The corresponding differentially expressed genes, Gzmb, Cd274, Vtcn1, Irf1, Cd86 and Stat1 were also significantly activated.
2024-01-22 | GSE252712 | GEO