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

ABSTRACT: 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.

ORGANISM(S): Homo sapiens

PROVIDER: GSE32061 | GEO | 2012/06/08

SECONDARY ACCESSION(S): PRJNA147615

REPOSITORIES: GEO

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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

Microarray analysis of palatal shelves from wild-type versus p63-null mouse embryos

Project description:Mutations in the transcription factor p63 underlie of a series of human malformation syndromes which are defined by a combination of epidermal, limb and craniofacial abnormalities including cleft lip and palate. Transcription profiling was performed to determine the role of p63 in vivo mouse palatal shelves. Microarray analysis was done of palatal shelves dissected from E14.0 wild-type versus p63-null mouse embryos.

2017-06-12 | E-MTAB-3145 | biostudies-arrayexpress

p63 spatio-temporal control of cleft palate

Project description:Cleft palate is a common congenital anomaly with a live birth prevalence estimated to be 1:2500 live births, that results from failure of growth, elevation, adhesion and/or fusion of the palatal shelves during embryogenesis. Mutations in the gene encoding the transcription factor p63 result in cleft palate in humans and mice. To study the roles of P63 in periderm migration and medial edge epithelia in mice sub-mucous cleft palate, ÎNp63alpha was ectopically expressed in the palatal epithelia using a transgenic approach.

2017-06-12 | E-MTAB-5289 | biostudies-arrayexpress

CNV analysis of 140 Filipinos with Cleft Lip and/or Palate

Project description:Orofacial clefts are one of the most common birth defects, affecting 1-2 per 1000 births, and have a complex etiology. High-resolution array-based comparative genomic hybridization has increased the ability to detect copy number variants that can be causative for complex diseases such as cleft lip and/or palate. Utilizing this technique on 97 non-syndromic cleft lip and palate cases and 43 cases with cleft palate only, we identified a heterozygous deletion of Isthmin 1 in one affected case, as well as a deletion in a second case which removes putative 3' regulatory information. Isthmin 1 is a strong candidate for clefting as it is expressed in orofacial structures derived from the first branchial arch and is also in the same synexpression group as fibroblast growth factor 8 and sprouty RTK signaling antagonist 1a and 2, all of which have been associated with clefting. Copy number variants affecting Isthmin 1 are exceedingly rare in control populations, and Isthmin 1 scores as a likely haploinsufficiency locus. Confirming its role in craniofacial development, knockdown or CRISPR/Cas9-generated mutation of isthmin 1 in Xenopus laevis resulted in mild to severe craniofacial dysmorphologies, with several individuals presenting with median clefts. Moreover, knockdown of isthmin 1 produced decreased expression of LIM homeobox 8, itself a gene associated with clefting, in regions of the face that pattern the maxilla. Our study demonstrates a successful pipeline from copy number variant identification of a candidate gene to functional validation in a vertebrate model system and reveals Isthmin 1 as both a new human clefting locus as well as a key craniofacial patterning gene.

2018-01-17 | GSE100845 | GEO

Transcription profiling by RNA-Seq mouse embryos

Project description:Mutations in the transcription factor p63 underlie of a series of human malformation syndromes which are defined by a combination of epidermal, limb and craniofacial abnormalities including cleft lip and palate. Transcription profiling was performed to determine the role of p63 in vivo mouse palatal shelves. RNA-seq analysis was done of palatal shelves dissected from E10.5, E11.5, E12.5, E13.5 and E14.5 mouse embryos.

2017-06-12 | E-MTAB-3157 | biostudies-arrayexpress

CNV analysis of 869 individuals from the Philippines with cleft lip and/or cleft palate

Project description:Cleft lip with or without cleft palate (CL/P) is a common birth defect with a complex, heterogeneous etiology. It is well-established that both common and rare sequence variants contribute to the formation of CL/P, however, the contribution of copy number variants (CNVs) to cleft formation remains relatively understudied. To fill this knowledge gap, we conducted a large-scale comparative analysis of genome-wide CNV profiles of 869 individuals from the Philippines and 233 individuals of European ancestry with CL/P with three primary goals: first, to evaluate whether differences in CNV number, amount of genomic content, or amount of coding genomic content existed within clefting subtypes; second, to assess whether CNVs in our cohort overlapped with known Mendelian clefting loci; and third, to identify unestablished Mendelian clefting genes. Significant differences in CNVs across cleft types or in individuals with non-syndromic versus syndromic clefts were not observed, however, several CNVs in our cohort overlapped with known syndromic and non-syndromic Mendelian clefting loci. Moreover, employing a filtering strategy relying on population genetics data that rare variants are on the whole more deleterious than common variants, we identify several CNV-associated gene losses likely driving non-syndromic clefting phenotypes. By prioritizing genes deleted at a rare frequency across multiple individuals with clefts yet enriched in our case cohort compared to controls, we identify COBLL1, RIC1, and ARHGEF38 as clefting genes. CRISPR/Cas9 mutagenesis of these genes in Xenopus laevis and Danio rerio yielded craniofacial dysmorphologies, including clefts analogous to those seen in human clefting disorders.

2022-12-01 | GSE212166 | GEO

CNV analysis of 233 individuals of European ancestry and 6 individuals of non-European ancestry with cleft lip and/or cleft palate

2022-12-01 | GSE212165 | GEO

Protein arginine methyltransferase PRMT1 is essential for palatogenesis

Project description:We report that neural crest-specific deletion of Prmt1 caused craniofacial malformations including cleft palate.

2019-09-01 | GSE114894 | GEO

Tamoxifen induces cleft palate in mice

Project description:Tamoxifen (TAM), a widely-used drug in treating breast cancer, has been reported to be associated with craniofacial defects including micrognathia and cleft palate in humans. However, the exact effects of TAM on the developing palate remain unclear. In the present study, we conclude that excess TAM exposure causes cleft palate defect in mice by regulating MAPK pathways, which implicates the importance of tightly regulated MAPK signaling in palate development and provides a basis for further exploration of the molecular etiology of cleft palate defects caused by environmental factors.

2022-11-22 | GSE140836 | GEO

Transcription profiling of skin from interferon regulatory factor 6 (Irf6) knockout mice and wild type mice to study the role for Irf6 in epidermal development.

Project description:Transcription factor paralogs may share a common role (e.g. Hox) in staged or overlapping expression in specific tissues. In other examples, members have distinct roles in a range of embryologic, differentiation or response pathways (e.g. Tbx, Pax). For the Interferon Regulatory Factor (IRF) family of transcription factors, mice deficient in Irf1, Irf2, Irf3, Irf4, Irf5, Irf7, Irf8 or Irf9, have defects in the immune response but display no embryologic abnormalities. Mice deficient for Irf6 have not been reported, but in humans, mutations in IRF6 cause two Mendelian orofacial clefting syndrome, and genetic variation in IRF6 confers risk for isolated cleft lip and palate. Mice deficient for Irf6 have abnormal skin, limb and craniofacial development. Histological and gene expression analyses indicate that the primary defect is in keratinocyte differentiation and proliferation. This study describes a novel role for an IRF family member in epidermal development. Experiment Overall Design: Skin from E17.5 mice was removed and flash frozen for RNA extraction and hybridization on Affymetrix microarrays.

2007-11-13 | E-GEOD-5800 | biostudies-arrayexpress

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