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Genome-wide chromatin accessibility change after PRC2 inhibition by MAK683 treatment

ABSTRACT: Genome-wide chromatin accessibility change after PRC2 inhibition by MAK683 treatment

PROVIDER: PRJNA761397 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR15742925_1.fastq.gz	Fastqsanger.gz
	SRR15742925_2.fastq.gz	Fastqsanger.gz
	SRR15742926_1.fastq.gz	Fastqsanger.gz
	SRR15742926_2.fastq.gz	Fastqsanger.gz

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Genome-wide chromatin accessibility change after PRC2 inhibition by MAK683 treatment

Project description:The methyltransferase Polycomb Repressive Complex 2 (PRC2), composed of EZH2, SUZ12, and EED subunits, is associated with transcriptional repression via tri-methylation of histone H3 on lysine 27 residue (H3K27me3). PRC2 is a validated drug target, as the EZH2 gain-of-function mutations identified in patient samples drive tumorigenesis. PRC2 inhibitors have been discovered and demonstrated anti-cancer efficacy in clinic. However, their pharmacological mechanisms are poorly understood. MAK683 is a potent EED inhibitor in clinical development. The overall goal of our study is to understand the molecular events leading to tumor regression after PRC2 inhibition. Our study revealed that multiple senescence-associated secretory phenotype (SASP) genes, such as Gata4, Mmp2/10, Itga2 and Gbp1, are derepressed upon PRC2 inhibition and contribute to decreased Ki67+, ECM reorganization, inflammation and tumor regression even in Cdkn2a/p16 knockout tumor.

2022-03-09 | GSE183602 | GEO

Genome-wide CRISPR/Cas9 screen to uncover effectors of PRC2 inhibition

Project description:The methyltransferase Polycomb Repressive Complex 2 (PRC2), composed of EZH2, SUZ12, and EED subunits, is associated with transcriptional repression via tri-methylation of histone H3 on lysine 27 residue (H3K27me3). PRC2 is a validated drug target, as the EZH2 gain-of-function mutations identified in patient samples drive tumorigenesis. PRC2 inhibitors have been discovered and demonstrated anti-cancer efficacy in clinic. However, their pharmacological mechanisms are poorly understood. MAK683 is a potent EED inhibitor in clinical development. The overall goal of our study is to understand the molecular events leading to tumor regression after PRC2 inhibition. Our study revealed that BMP-ACVR1 signaling pathway as a critical component for the anti-lymphoma efficacy of PRC2 inhibitor.

2024-04-04 | GSE232614 | GEO

H3K27me3 and H3K4me3 ChIP-seq on DMSO or MAK683 treated cancer cell

Project description:The methyltransferase Polycomb Repressive Complex 2 (PRC2), composed of EZH2, SUZ12, and EED subunits, is associated with transcriptional repression via tri-methylation of histone H3 on lysine 27 residue (H3K27me3). PRC2 is a validated drug target, as the EZH2 gain-of-function mutations identified in patient samples drive tumorigenesis. PRC2 inhibitors have been discovered and demonstrated anti-cancer efficacy in clinic. However, their pharmacological mechanisms are poorly understood. MAK683 is a potent EED inhibitor in clinical development. The overall goal of our study is to understand the molecular events leading to tumor regression after PRC2 inhibition. Our study revealed that BMP-ACVR1 signaling pathway as a critical component for the anti-lymphoma efficacy of PRC2 inhibitor.

2024-04-04 | GSE232613 | GEO

H3K27me3 and H3K4me3 ChIP-seq on DMSO or MAK683 treated cancer cell

2022-03-09 | GSE183601 | GEO

RNA-seq on DMSO or MAK683 treated cancer cells and xenograft tumor samples

Project description:The methyltransferase Polycomb Repressive Complex 2 (PRC2), composed of EZH2, SUZ12, and EED subunits, is associated with transcriptional repression via tri-methylation of histone H3 on lysine 27 residue (H3K27me3). PRC2 is a validated drug target, as the EZH2 gain-of-function mutations identified in patient samples drive tumorigenesis. PRC2 inhibitors have been discovered and demonstrated anti-cancer efficacy in clinic. However, their pharmacological mechanisms are poorly understood. MAK683 is a potent EED inhibitor in clinical development. The overall goal of our study is to understand the molecular events leading to tumor regression after PRC2 inhibition. Our study revealed that BMP-ACVR1 signaling pathway as a critical component for the anti-lymphoma efficacy of PRC2 inhibitor.

2024-04-04 | GSE232612 | GEO

RNA-seq on DMSO or MAK683 treated cancer cells and xenograft tumor samples

2022-03-09 | GSE183600 | GEO

The chromatin accessibility change by PRC2 inactivation with or without IFNγ stimulation in human MPNST cancer cells

Project description:PRC2-isogenic human malignant peripheral nerve sheath tumor (MPNST) M3 cells were generated through CRISPR/Cas9-mediated knockout of the PRC2 core component, SUZ12. PRC2 loss led to not only significant increase, but also significant decrease of chromatin accessibility at 15,346 (16% of all ATAC peaks) and 20,099 genomic loci (21% of all ATAC peaks), respectively. PRC2 loss decreased the chromatin accessibility for IFNγ-responsive loci in M3 cells, resulting in dampened response to IFNγ stimulation.

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The chromatin accessibility change by PRC2 inactivation with or without IFNγ stimulation in human MPNST cancer cells

Project description:The chromatin accessibility change by PRC2 inactivation with or without IFNγ stimulation in human MPNST cancer cells

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Inhibition of PRC2 activity by H3K36 methylation

Project description:Inhibition of PRC2 activity by H3K36 methylation

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Multiple modes of PRC2 inhibition elicit global chromatin alterations in H3K27M pediatric glioma

Project description:A methionine substitution at lysine 27 on histone H3 variants (H3K27M) characterizes ~80% of diffuse intrinsic pontine gliomas (DIPG) and inhibits PRC2 in a dominant negative fashion. Yet, the mechanisms for this inhibition and abnormal epigenomic landscape have not been resolved. Using quantitative proteomics, we discovered that robust PRC2 inhibition requires levels of H3K27M greatly exceeding those of PRC2, seen in DIPG. While PRC2 inhibition requires interaction with H3K27M, we found this interaction on chromatin is transient with PRC2 largely being released from H3K27M. Unexpectedly, inhibition persisted even after PRC2 dissociated from H3K27M-chromatin suggesting a lasting impact on PRC2. Furthermore, allosterically activated PRC2 is particularly sensitive to K27M leading to a failure to spread H3K27me3 at distinct foci. In turn, levels of Polycomb antagonists such as H3K36me2 are elevated suggesting a more global, downstream effect on the epigenome. Together, these findings reveal the conditions required for H3K27M-mediated PRC2 inhibition and reconcile seemingly paradoxical effects of H3K27M on PRC2 recruitment and activity.

2018-08-31 | GSE118954 | GEO

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