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Loss of CTCF reveals basic properties of post-mitotic epigenomes and induces heart failure

ABSTRACT: Loss of CTCF reveals basic properties of post-mitotic epigenomes and induces heart failure

PROVIDER: PRJNA379857 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR5349550_1.fastq.gz	Fastqsanger.gz
	SRR5349550_2.fastq.gz	Fastqsanger.gz
	SRR5349560.fastq.gz	Fastqsanger.gz
	SRR5349551_1.fastq.gz	Fastqsanger.gz
	SRR5349551_2.fastq.gz	Fastqsanger.gz

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Loss of CTCF reveals basic properties of post-mitotic epigenomes and induces heart failure [HiC-seq]

Project description:Understanding the principles of endogenous chromatin structure has key implications for epigenetic therapy. To determine the mechanisms of genome structure-function in post-mitotic cells, genome-wide chromatin conformation capture was performed in cardiac myocytes, a non-dividing, differentiated cell responsible for cardiac contraction. Cardiac-specific CTCF knockout mice demonstrated that loss of CTCF had minimal effect on topologically associating domains; however, it selectively altered boundary strength and A/B compartmentalization, with gene expression changes mimicking those in heart failure. Loss of CTCF (or subjecting wild-type mice to clinically relevant pressure overload stress) remodeled long-range chromatin looping to alter 3D proximity of enhancers and disease causing genes. Depletion of CTCF was sufficient to induce heart failure in mice and human heart failure patients receiving mechanical unloading to attenuate disease progression show increased CTCF expression. These findings establish CTCF in the maintenance of chromatin looping and identify global chromatin remodeling as a causative factor in heart failure.

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Loss of CTCF reveals basic properties of post-mitotic epigenomes and induces heart failure [ChIP-seq]

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Loss of CTCF reveals basic properties of post-mitotic epigenomes and induces heart failure

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