Interferon Regulatory Factor 6 Determines Epithelial Cell Development and Immunity
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PROVIDER: PRJNA1030897 | ENA |
REPOSITORIES: ENA
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Project description:Interferon Regulatory Factor 6 Determines Epithelial Cell Development and Immunity 1
| PRJNA1030898 | ENA
Project description:Interferon Regulatory Factor 6 Determines Epithelial Cell Development and Immunity 2
| PRJNA1030899 | ENA
Project description:Intestinal epithelial cells (IECs) form a primary barrier against microbial invasion. Prior studies of enteric pathogens have indicated that IEC defense mechanisms are distinct from those of other cell types. For example, antiviral defense of IECs depends on type III interferon whereas most cell types depend on type I IFN. Interferon regulatory factors (IRFs) are a family of transcription factors with well-described roles in stimulation of IFN cytokines, but IRF6 is unique in its preferential expression by epithelial lineages. IRF6 has primarily been studied in epidermal development, but has relatively unknown roles in the intestinal epithelium. Here, we found that Irf6 KO regulated IFN-stimulated antiviral immunity of IECs but had no effect on macrophages. RNseq analysis of Irf6 KO cells showed significant differences in the IFN-stimulated gene expression program that correlated with the magnitude of antiviral gene stimulation. We also found significant baseline phenotypic and transcriptional changes in Irf6 KO IECs, with reduced rate of growth and preturbation of growth and differentiation pathway genes. Knockout of Irf6 in primary IEC organoids also resulted in slower growth and smaller size. Transcriptional analysis of Irf6 KO organoids indicated reduced expression of genes in the epithelial differentiation pathwya, including Wnt and Notch pathway genes, as well as increased expression of a subset of IFN-stimulated genes. These data indicate a previously unappreciated role of Irf6 in shaping the IEC transcriptome, including baseline epithelial development genes and IFN-stimulated genes.
2023-11-01 | GSE245971 | GEO
Project description:Intestinal epithelial cells (IECs) form a primary barrier against microbial invasion. Prior studies of enteric pathogens have indicated that IEC defense mechanisms are distinct from those of other cell types. For example, antiviral defense of IECs depends on type III interferon whereas most cell types depend on type I IFN. Interferon regulatory factors (IRFs) are a family of transcription factors with well-described roles in stimulation of IFN cytokines, but IRF6 is unique in its preferential expression by epithelial lineages. IRF6 has primarily been studied in epidermal development, but has relatively unknown roles in the intestinal epithelium. Here, we found that Irf6 KO regulated IFN-stimulated antiviral immunity of IECs but had no effect on macrophages. RNseq analysis of Irf6 KO cells showed significant differences in the IFN-stimulated gene expression program that correlated with the magnitude of antiviral gene stimulation. We also found significant baseline phenotypic and transcriptional changes in Irf6 KO IECs, with reduced rate of growth and preturbation of growth and differentiation pathway genes. Knockout of Irf6 in primary IEC organoids also resulted in slower growth and smaller size. Transcriptional analysis of Irf6 KO organoids indicated reduced expression of genes in the epithelial differentiation pathwya, including Wnt and Notch pathway genes, as well as increased expression of a subset of IFN-stimulated genes. These data indicate a previously unappreciated role of Irf6 in shaping the IEC transcriptome, including baseline epithelial development genes and IFN-stimulated genes.
2023-11-01 | GSE245970 | GEO
Project description:Intestinal epithelial cell (IEC) responses to interferon (IFN) favor antiviral defense with minimal cytotoxicity, but IEC-specific factors that regulate these responses remain poorly understood. Interferon regulatory factors (IRFs) are a family of nine related transcription factors, and IRF6 is preferentially expressed by epithelial cells, but its roles in IEC immunity are unknown. In this study, Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) screens found that Irf6 deficiency enhanced IFN-stimulated antiviral responses in transformed mouse IECs but not macrophages. Furthermore, knockout (KO) of Irf6 in IEC organoids resulted in profound changes to homeostasis and immunity gene expression. Irf6 KO organoids grew more slowly, and single-cell ribonucleic acid sequencing indicated reduced expression of genes in epithelial differentiation and immunity pathways. IFN-stimulated gene expression was also significantly different in Irf6 KO organoids, with increased expression of stress and apoptosis-associated genes. Functionally, the transcriptional changes in Irf6 KO organoids were associated with increased cytotoxicity upon IFN treatment or inflammasome activation. These data indicate a previously unappreciated role for IRF6 in IEC biology, including regulation of epithelial development and moderation of innate immune responses to minimize cytotoxicity and maintain barrier function.
| S-EPMC11323225 | biostudies-literature
Project description:This SuperSeries is composed of the SubSeries listed below.
2023-11-01 | GSE245972 | GEO
Project description:The transcription factor Interferon Regulatory Factor 6 (IRF6) is crucially involved in craniofacial development and regulates the proliferation/differentiation balance in keratinocytes. Pathological IRF6 variants have been found in Van der Woude syndrome (VWS), the most common syndromic form of cleft lip / palate (CLP) as well as in non-syndromic CLP cases. Besides its prominent function in regulating keratinocyte differentiation, recent data revealed that IRF6 is also involved in wound healing and migration. Since a significant fraction of CLP patients undergoing corrective cleft surgery experience wound healing complications, IRF6 represents an interesting candidate gene linking the two processes. However, Irf6 function has been mainly studied in mice and knowledge on IRF6 in human cells remains sparse. Here, we aimed to elucidate the role of IRF6 in human postnatal skin- and oral mucosa-derived keratinocytes by its ablation using CRISPR/Cas9. We complement this approach by applying proteomics and identify that lack of IRF6 disrupts human epithelial homeostasis by altering cell colony morphology, migration pattern, and the differentiation potential of keratinocytes.
2022-02-17 | PXD027669 | Pride
Project description:The mass spectrometry data describes the phosphorylation of a transcription factor known as interferon regulatory factor 9 (IRF9), under IFNbeta-induced or non-induced conditions. IRF9 is involved in the transcriptional regulation of hundreds of interferon-stimulated genes as part of the innate immune response.
2022-07-20 | MSV000089924 | MassIVE
Project description:Trained immunity suppression determines kidney allograft survival
| PRJNA1180533 | ENA
Project description:Trained immunity suppression determines kidney allograft survival [ChIP]
| PRJNA1181014 | ENA