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Mus musculus

ABSTRACT: Genome-wide maps of histone modifications unwind in vivo chromatin states of the hair follicle lineage [ChIP-Seq]

PROVIDER: PRJNA146041 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR331073.fastq.gz	Fastqsanger.gz
	SRR331074.fastq.gz	Fastqsanger.gz
	SRR331075.fastq.gz	Fastqsanger.gz
	SRR331076.fastq.gz	Fastqsanger.gz
	SRR331077.fastq.gz	Fastqsanger.gz

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Mus musculus

Project description:Genome-wide maps of histone modifications unwind in vivo chromatin states of the hair follicle lineage

| PRJNA144895 | ENA

Genome-wide maps of histone modifications unwind in vivo chromatin states of the hair follicle lineage [ChIP-Seq]

Project description:Mouse hair follicles undergo synchronized cycles. Cyclical regeneration and hair growth is fueled by stem cells (SCs). During the rest phase, the HF-SCs remain quiescent due to extrinsic inhibitory signals within the niche. As activating cues accumulate, HF-SCs become activated, proliferate, and grows downward to form transient-amplifying matrix progenitor cells. We used ChIP-seq to reveal the genome-wide maps of histone modifications underlying the states of hair follicle stem cells and their transient-amplifying progeny before differentiation. Quiescent hair follicle stem cells (qHF-SCs), activated hair follicle stem cells (aHF-SCs) and transient-amplifying matrix cells (HF-TACs) were FACS-purified for ChIP-sequcencing.

2011-09-02 | E-GEOD-31239 | biostudies-arrayexpress

Genome-wide maps of histone modifications unwind in vivo chromatin states of the hair follicle lineage [ChIP-Seq]

2011-09-02 | GSE31239 | GEO

Nfatc1 Orchestrates Aging in Hair Follicle Stem Cells

Project description:Mouse hair follicles undergo synchronized cycles. Cyclical regeneration and hair growth is fueled by hair follicle stem cells (HFSCs). We used ChIP-seq to unfold genome-wide chromatin landscapes of Nfatc1 and dissect the biological relevence of its upstream BMP signaling in HFSC aging. Telogen quiescent hair follicle stem cells (HFSCs) were FACS-purified for ChIP-sequcencing.

2013-11-14 | E-GEOD-52328 | biostudies-arrayexpress

Signaling couples hair follicle stem cell quiescence with reduced histone H3K4/K9/K27me3 for proper tissue homeostasis

Project description:Mechanisms of plasticity to acquire different cell fates are critical for adult stem cell (SC) potential, yet are poorly understood. Reduced global histone methylation is an epigenetic state known to mediate plasticity in cultured embryonic SCs and T cell progenitors. We used mouse hair follicle stem cells (HFSCs) at two different hair cycle stages (early anagen and late catagen) to compare the genome-wide changes in the levels of histone modification marks H3K4me3, H3K9me3, and H3K27me3. Hair follicle stem cells from Early Anagen (EA-HFSCs) and Late Catagen (LC-HFSCs), and their non-HFSCs counterparts (nEA-HFSCs and nLC-HFSCs), were FACS-isolated for Chromatin Immunoprecipitation followed by sequencing (ChIP-seq) analysis of H3K4me3, H3K9me3, and H3K27me3.

2016-04-13 | E-GEOD-78749 | biostudies-arrayexpress

Pioneer factors govern super-enhancer dynamics in stem cell plasticity and lineage choice

Project description:Mouse hair follicles undergo synchronized cycles. Cyclical regeneration and hair growth is fueled by hair follicle stem cells (HFSCs) and transit-amplifying cells (TACs). We used ChIP-seq to unfold genome-wide chromatin landscapes of H3K27ac and Med1 to identify super-enhancers and dissect their biological relevance in cell identity and plasticity of HFSCs in vivo and in vitro.

2015-03-19 | GSE61316 | GEO

Niche stiffening compromises stem cell potential during aging by reducing chromatin accessibility at bivalent promoters

Project description:Tissue homeostasis and regeneration require activation and subsequent lineage commitment of tissue-resident stem cells (SCs). These state changes are controlled by epigenetic barriers. Using hair follicle stem cells (HFSCs) as paradigm, we studied how aging impacts the chromatin landscape and function of mammalian SCs. Analyses of genome-wide chromatin accessibility revealed that aged HFSCs displayed widespread reduction of chromatin accessibility specifically at key SC self-renewal and differentiation genes that were characterized by bivalent promoters carrying both activating and repressive chromatin marks. Consistently, aged HFSCs showed reduced self-renewing capacity and attenuated ability to activate expression of these bivalent genes upon regeneration. These functional defects were niche-dependent as transplantation of aged HFSCs into young recipients or into ex vivo niches restored SC functions and transcription of poised genes. Mechanistically, aged HFSC niche displayed wide-spread alterations in extracellular matrix composition and mechanics, resulting in compressive forces on SCs and subsequent transcriptional repression, leading to loss of bivalent promoters. Tuning tissue mechanics both in vivo and in vitro recapitulated age-related SC changes, implicating niche mechanics as a central regulator of genome organization and function leading to age-dependent SC exhaustion.

2021-05-07 | PXD018352 | Pride

Nfatc1 Orchestrates Aging in Hair Follicle Stem Cells

2013-11-14 | GSE52328 | GEO

Genome-wide maps of chromatin state in pluripotent and lineage-committed cells

Project description:Genome-wide maps of chromatin state (H3K4me3, H3K9me3, H3K27me3, H3K36me3, H4K20me3) in pluripotent and lineage-committed cells We report the application of single-molecule-based sequencing technology for high-throughput profiling of histone modifications in mammalian cells. By obtaining over four billion bases of sequence from chromatin immunoprecipitated DNA, we generated genome-wide chromatin-state maps of mouse embryonic stem cells, neural progenitor cells and embryonic fibroblasts. We find that lysine 4 and lysine 27 trimethylation effectively discriminates genes that are expressed, poised for expression, or stably repressed, and therefore reflect cell state and lineage potential. Lysine 36 trimethylation marks primary coding and non-coding transcripts, facilitating gene annotation. Trimethylation of lysine 9 and lysine 20 is detected at satellite, telomeric and active long-terminal repeats, and can spread into proximal unique sequences. Lysine 4 and lysine 9 trimethylation marks imprinting control regions. Finally, we show that chromatin state can be read in an allele-specific manner by using single nucleotide polymorphisms. This study provides a framework for the application of comprehensive chromatin profiling towards characterization of diverse mammalian cell populations. Histone H3 or H4 tri-methylation ChIP-Seq in singlicate from murine embryonic stem (ES) cells, ES-derived neural precursor cells, and embryonic fibroblasts.

2008-07-24 | E-GEOD-12241 | biostudies-arrayexpress

Genome-wide maps of chromatin state in mouse erythroid cells.

Project description:We generated genome-wide chromatin state and RNA Polymerase II binding maps in mouse erythroid cells by ChIP-Seq. Examination of 4 different histone modifications (H3K4me3, H3K4me1, H3K27me3, H3K27ac) and RNA Polymerase II (RNAP2) binding in mouse erythroid cells (Ter119+).

2012-01-30 | E-GEOD-27918 | biostudies-arrayexpress

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