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Genome-wide activation of a glioma cancerous transcription program and super-enhancers by a single enhancer HOXDeRNA [RNA-seq]

ABSTRACT: Genome-wide activation of a glioma cancerous transcription program and super-enhancers by a single enhancer HOXDeRNA [RNA-seq]

PROVIDER: PRJNA947105 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR23928367.fastq.gz	Fastqsanger.gz
	SRR23928367_1.fastq.gz	Fastqsanger.gz
	SRR23928367_2.fastq.gz	Fastqsanger.gz
	SRR23928368.fastq.gz	Fastqsanger.gz
	SRR23928368_1.fastq.gz	Fastqsanger.gz

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Genome-wide activation of a glioma cancerous transcription program and super-enhancers by a single enhancer HOXDeRNA

Project description:Genome-wide activation of a glioma cancerous transcription program and super-enhancers by a single enhancer HOXDeRNA

| PRJNA947100 | ENA

Genome-wide activation of a glioma cancerous transcription program and super-enhancers by a single enhancer HOXDeRNA [ChiRP-Seq]

Project description:Genome-wide activation of a glioma cancerous transcription program and super-enhancers by a single enhancer HOXDeRNA [ChiRP-Seq]

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Genome-wide activation of a glioma cancerous transcription program and super-enhancers by a single enhancer HOXDeRNA [ChIP-seq]

Project description:Genome-wide activation of a glioma cancerous transcription program and super-enhancers by a single enhancer HOXDeRNA [ChIP-seq]

| PRJNA947107 | ENA

Genome-wide activation of a glioma cancerous transcription program and super-enhancers by a single enhancer HOXDeRNA [ChIP-seq]

Project description:A growing number of studies describe multiple functions of lncRNAs in chromatin that support their active roles in normal and disease-specific gene expression. We identified a specific enhancer-associated LINC01116 (named HOXDeRNA), which targeted activation transformed human astrocytes into glioma-like cells. Using a combination of RNA-Seq, ChIRP-Seq, and ChIP-Seq, we defined the transcriptomic and epigenetic changes underlying the transformation. We demonstrate that HOXDeRNA binds in trans to the promoters of 44 glioma-specific transcription factors distributed throughout the genome and derepresses them by removing the Polycomb 2 complex. This process is mediated by the RNA G-quadruplex structure of HOXDeRNA. Moreover, HOXDeRNA-induced astrocyte transformation is accompanied by the activation of glioma-specific super-enhancers enriched for binding sites of glioma master transcription factors SOX2 and OLIG2, and multiple oncogenes such as EGFR, PDGFR, BRAF, and miR-21. Our results help reconstruct the sequence of events underlying the process of astrocyte transformation and suggest a driving role of HOXDeRNA eRNA in gliomagenesis.

2023-03-31 | GSE227803 | GEO

Genome-wide activation of a glioma cancerous transcription program and super-enhancers by a single enhancer HOXDeRNA [RNA-seq]

2023-03-31 | GSE227802 | GEO

Genome-wide activation of a glioma cancerous transcription program and super-enhancers by a single enhancer HOXDeRNA [ChiRP-Seq]

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Master Transcription Factors and Mediator Establish Super-Enhancers at Key Cell Identity Genes [ChIP-Seq]

Project description:The master transcription factors Oct4, Sox2 and Nanog bind enhancer elements and recruit the Mediator co-activator to activate much of the gene expression program of embryonic stem cells (ESCs). We report here that the ESC master transcription factors and Mediator form “super-enhancers” at most genes known to control the pluripotent state, including those encoding the master transcription factors themselves. These super-enhancers consist of extraordinarily large genomic domains occupied by exceptional amounts of Oct4, Sox2, Nanog, Klf4, Esrrb and Mediator. Super-enhancers stimulate considerably higher transcription than typical enhancers in vivo and in reporter vectors. Reduced levels of Oct4 or Mediator cause preferential loss of expression of super-enhancer-associated genes relative to other genes, suggesting how changes in gene expression programs might be accomplished during development. In other more differentiated cells, super-enhancers containing cell-type-specific master transcription factors are also found at genes that define cell identity. These results implicate super-enhancers in the control of mammalian cell identity and differentiation. ChIP-Seq and controls associated with Super-Enhancers in murine cell types

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Master Transcription Factors and Mediator Establish Super-Enhancers at Key Cell Identity Genes

Project description:The master transcription factors Oct4, Sox2 and Nanog bind enhancer elements and recruit the Mediator co-activator to activate much of the gene expression program of embryonic stem cells (ESCs). We report here that these ESC master transcription factors and Mediator form M-bM-^@M-^\super-enhancersM-bM-^@M-^] at most genes that are known to control the pluripotent state, including those encoding the master transcription factors themselves. These super-enhancers consist of extraordinarily large genomic domains occupied by exceptional amounts of Oct4 and Mediator. Super-enhancers stimulate considerably higher transcription than typical enhancers in reporter vectors. ESC differentiation causes preferential loss of expression of super-enhancer -associated genes. Super-enhancers are also found at key cell identity genes in differentiated cells. These results implicate super-enhancers in the control of mammalian cell identity and differentiation and suggest that these elements might generally be used to identify genes that control cell-type specific gene expression programs in many mammalian cells. ChIP-Seq and RNA-seq of Med1 in ZHBTc4 ES during treatment with doxycycline. ChIP-Seq data of Med1 in 38B9 pro-B cells.

2013-01-02 | E-GEOD-42474 | biostudies-arrayexpress

Transcriptional super-enhancers connected to cell identity and disease

Project description:Super-enhancers are large clusters of transcriptional enhancers that drive expression of genes that control and define cell identity. Improved understanding of the roles super-enhancers play in biology would be afforded by knowing the constellation of factors that constitute these domains and by identifying super-enhancers across the spectrum of human cell types. We describe here the population of transcription factors, cofactors, chromatin regulators and core transcription apparatus that occupy super-enhancers in embryonic stem cells (ESCs) and evidence that super-enhancers are highly transcribed. We then use epigenomic data to produce a catalogue of super-enhancers in a broad range of human cell types. These super-enhancer domains are associated with genes encoding master transcription factors and other components that play important roles in the biology of these cells. Interestingly, sequence variation associated with a broad spectrum of diseases is especially enriched in the super-enhancers of disease-relevant cell types. Furthermore, we find that cancer cells generate super-enhancers at oncogenes and other genes that play important roles in tumor pathogenesis. We discuss these insights and their implications for future study of human health and disease. ChIP-Seq for transcription factors in mouse embryonic stem cells and H3K27ac in Jurkat T-ALL cell line RNA-Seq for mouse embryonic stem cells

2013-10-23 | E-GEOD-51522 | biostudies-arrayexpress

Master Transcription Factors and Mediator Establish Super-Enhancers at Key Cell Identity Genes [gene expression]

Project description:The master transcription factors Oct4, Sox2 and Nanog bind enhancer elements and recruit the Mediator co-activator to activate much of the gene expression program of embryonic stem cells (ESCs). We report here that the ESC master transcription factors and Mediator form M-bM-^@M-^\super-enhancersM-bM-^@M-^] at most genes known to control the pluripotent state, including those encoding the master transcription factors themselves. These super-enhancers consist of extraordinarily large genomic domains occupied by exceptional amounts of Oct4, Sox2, Nanog, Klf4, Esrrb and Mediator. Super-enhancers stimulate considerably higher transcription than typical enhancers in vivo and in reporter vectors. Reduced levels of Oct4 or Mediator cause preferential loss of expression of super-enhancer-associated genes relative to other genes, suggesting how changes in gene expression programs might be accomplished during development. In other more differentiated cells, super-enhancers containing cell-type-specific master transcription factors are also found at genes that define cell identity. These results implicate super-enhancers in the control of mammalian cell identity and differentiation. Time-course of gene expression following shRNA knockdown of Oct4 and Med12.

2013-02-13 | E-GEOD-44287 | biostudies-arrayexpress

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