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The chromatin remodeler Bptf activates a stemness gene-expression program essential for the maintenance of adult hematopoietic stem cells [ATAC-Seq]

ABSTRACT: The chromatin remodeler Bptf activates a stemness gene-expression program essential for the maintenance of adult hematopoietic stem cells [ATAC-Seq]

PROVIDER: PRJNA427310 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6412242.fastq.gz	Fastqsanger.gz
	SRR6412243.fastq.gz	Fastqsanger.gz
	SRR6412244.fastq.gz	Fastqsanger.gz
	SRR6412245.fastq.gz	Fastqsanger.gz
	SRR6412246.fastq.gz	Fastqsanger.gz

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The chromatin remodeler Bptf activates a stemness gene-expression program essential for the maintenance of adult hematopoietic stem cells [ChIP-Seq]

Project description:Bptf, a component of NURF chromatin-remodeling complex, is essential for maintaining the pool size and function of hematopoietic stem cells (HSCs). Genome-wide transcriptome profiling revealed that Bptf loss caused down-regulation of HSC-specific gene-expression programs, which included master transcription factors (such as Meis1, Pbx1, and Lmo2) known to be required for HSC maintenance and self-renewal. Bptf directly bound to the promoter of ‘stemness’ TF genes, potentiating their transcription and DNA accessibility.

2018-01-25 | GSE108440 | GEO

The chromatin remodeler Bptf activates a stemness gene-expression program essential for the maintenance of adult hematopoietic stem cells [ATAC-Seq]

2018-01-25 | GSE108439 | GEO

The chromatin remodeler Bptf activates a stemness gene-expression program essential for the maintenance of adult hematopoietic stem cells [RNA-Seq]

2018-01-25 | GSE108438 | GEO

The chromatin remodeler Bptf activates a stemness gene-expression program essential for the maintenance of adult hematopoietic stem cells

Project description:The chromatin remodeler Bptf activates a stemness gene-expression program essential for the maintenance of adult hematopoietic stem cells

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The chromatin remodeler Bptf activates a stemness gene-expression program essential for the maintenance of adult hematopoietic stem cells [RNA-Seq]

Project description:The chromatin remodeler Bptf activates a stemness gene-expression program essential for the maintenance of adult hematopoietic stem cells [RNA-Seq]

| PRJNA427309 | ENA

The chromatin remodeler Bptf activates a stemness gene-expression program essential for the maintenance of adult hematopoietic stem cells [ChIP-Seq]

Project description:The chromatin remodeler Bptf activates a stemness gene-expression program essential for the maintenance of adult hematopoietic stem cells [ChIP-Seq]

| PRJNA427308 | ENA

The Chromatin Remodeler BPTF Activates a Stemness Gene-Expression Program Essential for the Maintenance of Adult Hematopoietic Stem Cells.

Project description:Self-renewal and differentiation of adult stem cells are tightly regulated partly through configuration of chromatin structure by chromatin remodelers. Using knockout mice, we here demonstrate that bromodomain PHD finger transcription factor (BPTF), a component of the nucleosome remodeling factor (NURF) chromatin-remodeling complex, is essential for maintaining the population size of hematopoietic stem/progenitor cells (HSPCs), including long-term hematopoietic stem cells (HSCs). Bptf-deficient HSCs are defective in reconstituted hematopoiesis, and hematopoietic-specific knockout of Bptf caused profound defects including bone marrow failure and anemia. Genome-wide transcriptome profiling revealed that BPTF loss caused downregulation of HSC-specific gene-expression programs, which contain several master transcription factors (Meis1, Pbx1, Mn1, and Lmo2) required for HSC maintenance and self-renewal. Furthermore, we show that BPTF potentiates the chromatin accessibility of key HSC "stemness" genes. These results demonstrate an essential requirement of the chromatin remodeler BPTF and NURF for activation of "stemness" gene-expression programs and proper function of adult HSCs.

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The chromatin remodeler Bptf activates a stemness gene-expression program essential for the maintenance of adult hematopoietic stem cells

Project description:This SuperSeries is composed of the SubSeries listed below.

2018-01-25 | GSE108441 | GEO

BPTF is required for c-MYC-induced remodelling of target chromatin and transcriptional activation [RNA-Seq]

Project description:The c-MYC oncogene is a key transcription factor deregulated in most human tumors. Histone marks associated with transcriptionally active genes in euchromatic islands define the set of high-affinity c-MYC targets. The mechanisms involved in their recognition by c-MYC are not known but likely involve chromatin-remodelling and chromatin-modifying complexes. Here, we show that c-MYC interacts with BPTF, a core subunit of the NURF complex that binds active chromatin. BPTF is required for the activation of the full c-MYC transcriptional programme in fibroblasts. BPTF knockdown leads to a decrease in c-MYC recruitment to DNA and to changes in chromatin accessibility. Using BPTF-null MEFs we show that BPTF is necessary for c-MYC-driven proliferation, G1-S progression, and replication stress, but not for c-MYC-driven apoptosis. Consistently, BPTF is required for the proliferation of cells driven by c-MYC, such as Burkitt lymphoma, and its expression in human cancer lines correlates with the activation of c-MYC gene signatures. Our findings point to the c-MYC-BPTF axis as a potential therapeutic target in cancer. To assess whether BPTF is required for the transcriptional activity of c-MYC, human foreskin fibroblasts (HFF) were stably transduced with the chimeric MYC-ER cDNA (HFF MYC-ER) and infected with lentiviruses coding for either control (shNt) or BPTF-targeting shRNAs. Cells were serum-starved for 2 days to achieve quiescence and then treated with 4-hydroxytamoxifen (4-OHT)

2016-01-19 | E-GEOD-65545 | biostudies-arrayexpress

BPTF is required for c-MYC-induced remodelling of target chromatin and transcriptional activation [ChIP-Seq]

2016-01-19 | E-GEOD-65544 | biostudies-arrayexpress