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Analysis of p63-isoform specific direct target genes in primary murine keratinocytes

ABSTRACT: Analysis of p63-isoform specific direct target genes in primary murine keratinocytes

PROVIDER: PRJNA315854 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR3271330_1.fastq.gz	Fastqsanger.gz
	SRR3271330_2.fastq.gz	Fastqsanger.gz
	SRR3271360.fastq.gz	Fastqsanger.gz
	SRR3271331_1.fastq.gz	Fastqsanger.gz
	SRR3271331_2.fastq.gz	Fastqsanger.gz

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Analysis of p63-isoform specific direct target genes in primary murine keratinocytes

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

2018-03-20 | GSE79449 | GEO

Genome wide identification of p63 binding sites in human neonatal foreskin keratinocytes

Project description:We report here genome wide identification of p63 binding sites in cycling neonatal foreskin keratinocytes using high throughput sequencing of ChIP enriched DNA. Analysis of gene ontology, database mining with integration with publicly available data, reveals a role for p63 in transcriptional regulation of multiple genes genetically linked to cleft palate. In addition, we identify AP-2Î±, a transcription factor which, when mutated, also results in craniofacial clefting syndrome, as a co-regulator of p63 responsive genes. Examination of p63 binding sites in neonatal foreskin keratinocytes

2012-06-07 | E-GEOD-32061 | biostudies-arrayexpress

p63 ChIP-seq analysis comparing WT, TAp63-null, and DNp63-null primary murine keratinocytes

Project description:We performed a ChIP-seq analysis characterizing the p63 binding sites in primary keratinocytes obtained from E18.5 mice of 3 different genotypes (WT, TAp63-/-, and ΔNp63-/-). We aimed to identify the specific genomic regions bound by TAp63 and ΔNp63 in physiological conditions.

2018-03-20 | GSE79448 | GEO

p63 cooperates with CTCF to modulate chromatin accessibility and architecture in skin keratinocytes

Project description:Here we integrated multi-omics profiles including transcriptomics, DNA accessibility and capture Hi-C data to explore how p63 shapes local chromatin architecture in skin keratinocytes isolated from EEC syndrome patients. Surprisingly, we observed decreased chromatin accessibility in a number of DNA looping nodes which were co-mediated by p63 and CTCF. Our findings not only identified a new aspect of the bookmark function of p63, but also shed light on the disease mechanism underlined p63 dysfunction. Therefore, we propose p63 as a spatial genome organizer by modulating a subset of DNA loops with CTCF and therefore fine-tuning transcription programs required for skin keratinocytes.

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Impact of iASPP knockout on p63 genome occupancy in mouse keratinocytes

Project description:iASPP (PPP1R13L) is an evolutionarily conserved regulator of p53 family members. In mice, iASPP deletion in keratin 14-expressing keratinocytes is sufficient to cause detrimental phenotypes with squamous epithelium abnormalities. In human skin, wild-type nuclear iASPP colocalizes with the key squamous differentiation regulatory factor, TP63, and iASPP mutations are associated with abnormalities in skin development. To clarify how iASPP modulates p63 genome occupancy, p63 ChIP-seq data from iASPP WT and iASPP KO primary mouse keratinocytes (MKC) were compared.

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Genome wide identification of p63 binding sites in human neonatal foreskin keratinocytes

2012-06-08 | GSE32061 | GEO

Transcription profiling of human and mouse keratinocytes infected with AD and Ad-NotchIC viruses reveals cross-regulation between Notch and p63 in keratinocyte commitment to differentiation

Project description:Notch signaling promotes commitment of keratinocytes to differentiation and suppresses tumorigenesis. p63, a p53 family member, has been implicated in establishment of the keratinocyte cell fate and/or maintenance of epithelial self-renewal. Here we show that p63 expression is suppressed by Notch1 activation in both mouse and human keratinocytes through a mechanism independent of cell cycle withdrawal and requiring down-modulation of selected interferon-responsive genes, including IRF7 and/or IRF3. In turn, elevated p63 expression counteracts the ability of Notch1 to restrict growth and promote differentiation. p63 functions as a selective modulator of Notch1-dependent transcription and function, with the Hes-1 gene as one of its direct negative targets. Thus, a complex cross-talk between Notch and p63 is involved in the balance between keratinocyte self-renewal and differentiation. Experiment Overall Design: PolyA+ mRNA (2-5 ug) from cells infected with the Ad GFP and Ad-NotchIC viruses was used as template for double stranded cDNA preparations with a T7-(dT)24 oligonucleotide primers for the first strand reaction. The resulting cDNA was used for preparation of biotin-labeled antisense cRNA and further used for hybridization to Affymetrix U74A or U95A âgene chipsâ according to the manufacturerâs recommendation.

2008-06-13 | E-GEOD-5229 | biostudies-arrayexpress

Cross-regulation between Notch and p63 in keratinocyte commitment to differentiation

Project description:Notch signaling promotes commitment of keratinocytes to differentiation and suppresses tumorigenesis. p63, a p53 family member, has been implicated in establishment of the keratinocyte cell fate and/or maintenance of epithelial self-renewal. Here we show that p63 expression is suppressed by Notch1 activation in both mouse and human keratinocytes through a mechanism independent of cell cycle withdrawal and requiring down-modulation of selected interferon-responsive genes, including IRF7 and/or IRF3. In turn, elevated p63 expression counteracts the ability of Notch1 to restrict growth and promote differentiation. p63 functions as a selective modulator of Notch1-dependent transcription and function, with the Hes-1 gene as one of its direct negative targets. Thus, a complex cross-talk between Notch and p63 is involved in the balance between keratinocyte self-renewal and differentiation. Keywords: Notch1, p63, keratinocyte differentiation, gene expression profiling

2006-07-08 | GSE5229 | GEO

Genome-wide profiling of p63 binding sites identifies genes and regulatory elements for p63-related disorders

Project description:We identified p63 target genes and binding sites responsible for ectodermal defects by genome-wide profiling of p63 binding using ChIP-seq and expression analysis in human primary keratinocytes from patients with p63 mutations. As proof of principle, we identified a novel de novo microdeletion causing limb defects (SHFM1) that includes a p63 binding site functioning as a cis-regulatory element to control expression of the distally located DLX5/DLX6 genes essential for limb development. Our data demonstrate that target genes and regulatory elements detected in this study can serve as powerful tools to identify causative mutations of unresolved ectodermal disorders. ChIP-seq profiles of p63 in primary human keratinocytes established from two different normal individuals.

2010-08-15 | E-GEOD-17611 | biostudies-arrayexpress

Mutant p63 affects epidermal cell identity through rewiring the enhancer landscape

Project description:<p>Transcription factor p63 is a key regulator of epidermal keratinocyte proliferation and differentiation. Mutations in the p63 DNA-binding domain are associated with Ectrodactyly Ectodermal Dysplasia Cleft Lip/Palate (EEC) syndrome. Underlying molecular mechanism of these mutations however remain unclear. Here we characterized the transcriptome and epigenome of p63 mutant keratinocytes derived from EEC patients. The transcriptome of p63 mutant keratinocytes deviated from the normal epidermal cell identity. Epigenomic analyses showed an altered enhancer landscape in p63 mutant keratinocytes contributed by loss of p63-bound active enhancers and by unexpected gain of enhancers. The gained enhancers were frequently bound by deregulated transcription factors such as RUNX1. Reversing RUNX1 overexpression partially rescued deregulated gene expression and the altered enhancer landscape. Our findings identify an unreported disease mechanism whereby mutant p63 rewires the enhancer landscape and affects epidermal cell identity, consolidating the pivotal role of p63 in controlling the enhancer landscape of epidermal keratinocytes.</p>

| phs001737 | dbGaP

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