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IRF2BP2 Modulates Chromatin Accessibility in Neuroblastoma

ABSTRACT: IRF2BP2 Modulates Chromatin Accessibility in Neuroblastoma

PROVIDER: PRJNA1031214 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR26480672_1.fastq.gz	Fastqsanger.gz
	SRR26480672_2.fastq.gz	Fastqsanger.gz
	SRR26480673_1.fastq.gz	Fastqsanger.gz
	SRR26480673_2.fastq.gz	Fastqsanger.gz
	SRR26480674_1.fastq.gz	Fastqsanger.gz

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IRF2BP2 Modulates Chromatin Accessibility in Neuroblastoma

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IRF2BP2 promotes neuroblastoma progression

Project description:We report a previously unrecognized role of IRF2BP2 in neuroblastoma. To explore IRF2BP2-dependent gene regulation, RNA-seq analysis was conducted and the differently expressed genes were revealed in the IRF2BP2-knockdown SK-N-BE(2) cells in comparison to control group. We find that IRF2BP2 contributes to maintenance ADRN signature of neuroblastoma cell.

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IRF2BP2 promotes neuroblastoma progression

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IRF2BP2 Modulates the Crosstalk between Glucocorticoid and TNF Signaling

Project description:Here we have analyzed the role of interferon regulatory factor-2 binding protein-2 (IRF2BP2) in glucocorticoid and tumor necrosis factor alpha (TNF) signaling. We used ChIP-seq to analyze chromatin binding of IRF2BP2 in glucocorticoid (dexamethasone, dex) and vehicle treated HEK293 cells expressing GR (HEK293-GR). Furthermore, we used RNA-seq to analyze how silencing of IRF2BP2 modulates transcriptional responses to dex treatment in HEK293-GR cells, and dex, TNF and co-treatment (dex and TNF, DT) in A549 cells.

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Occupancy profiling of IRF2BP2, MYCN, AP-1 and SOX11 by CUT&Tag from Neuroblastoma cells

Project description:MYCN and SOX11 are master transcription factors (TFs) in neuroblastoma by directly occupying each other's and their own super-enhancers (SEs). Additionally, Master TFs cooperatively co-occupy the same SE components, which promotes the expression of IRF2BP2 involved in cell survival. We also observed the significant enrichment of the AP-1 family at the binding sites of IRF2BP2. In the present study, CUT&Tag (Cleavage Under Targets and Tagmentation) analysis was performed to explore the target of IRF2BP2, MYCN, AP-1 and SOX11 in NB cells.

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IRF2BP2 Modulates the Crosstalk between Glucocorticoid and TNF Signaling

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Chromatin accessibility changes after BAF complex disruption in neuroblastoma cells by ATAC-Seq

Project description:In order to study the genomic regions undergoing chromatin accessibility changes when BAF chromatin remodelling complex is inhibited, ATAC-Seq of SK-N-BE(2) neuroblastoma cells was performed after silencing of BAF structural subunits ARID1A and ARID1B.

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Project description:PIWI-interacting RNAs (piRNAs) mediate transposable element (TE) silencing at the transcriptional or post-transcriptional level in animal gonads. In the Drosophila ovary, Piwiâ??piRNA complexes (Piwiâ??piRISCs) repress TE transcription by modifying the chromatin state, such as H3K9me3 marks. Here, we demonstrate that Piwi physically interacts with linker histone H1. Depletion of Piwi decreases H1 density on target loci, leading to TE derepression. Loss of H1 results in gain of chromatin accessibility at target loci without affecting H3K9me3 and heterochromatin protein 1a (HP1a) density at the same loci. Piwi-mediated TE silencing also requires HP1a by regulating chromatin accessibility through its association with target loci. Thus, Piwiâ??piRISCs require both H1 and HP1a to repress TEs, and the silencing is correlated with the state of chromatin formation rather than H3K9me3 marks. These findings suggest that Piwiâ??piRISCs regulate the interaction of chromatin components with target loci to maintain silencing of the TE state through the modulation of chromatin accessibility. RNA levels, H1 and H3K9me3 occupancy, chromatin accessibility, and Piwi-associated small RNA levels in ovarian somatic cells (OSC) depleted of piRNA pathway components and H1.

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IRF2BP2 affects T-ALL cell proliferation by cooperating with master transcription factors [Cut&Tag]

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