GEO DataSets

(Submitter supplied) The melan-a cell line is derived from immortalized mouse melanocytes obtained from Ink4a-ARF-/- mice. RNA-seq was performed to assess the global nature of transcript and gene expression profiles in melan-a cells. These RNA-seq data, along with separate ChIP-seq performed in melan-a cells (GSE38498), were used to correlate gene expression patterns with the presence or absence of transcription factors of interest.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

3 Samples

Download data: TXT

(Submitter supplied) Damage to the gene regulatory network governing terminal differentiation of melanocytes leads to pigmentation phenotypes and increases the risk for melanoma. Microphthalmia-associated transcription factor (MITF) directly activates expression of melanocyte differentiation effectors, and levels of MITF have been proposed to govern the melanoma phenotype. Mutations in the gene encoding Transcription Factor Activator Protein 2 alpha (TFAP2A) cause reduced pigmentation in model organisms and premature hair graying in humans, and TFAP2A expression tends to be lower in advanced melanoma tumors than in benign nevi. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL11002

3 Samples

Download data: BIGWIG, NARROWPEAK

(Submitter supplied) Mutations in the gene encoding transcription factor TFAP2A result in pigmentation anomalies in model organisms and premature hair graying in humans. However, the pleiotropic functions of TFAP2A and its redundantly-acting paralogs have made the precise contribution of TFAP2-type activity to melanocyte differentiation unclear. Defining this contribution may help to explain why TFAP2A expression is reduced in advanced-stage melanoma compared to benign nevi. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9442

2 Samples

Download data: BED

(Submitter supplied) scRNA-seq on GFP + cells sorted from the Tg(mitfa:GFP) transgenic zebrafish embryos at 28 hours post fertilization (hpf) using the 10x Chromium system

Organism:

Danio rerio

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20828

1 Sample

Download data: MTX, TSV

(Submitter supplied) In developing melanocytes and in melanoma cells, multiple paralogs of the Activating-enhancer-binding Protein 2 family of transcription factors (TFAP2) contribute to expression of genes encoding pigmentation regulators, but their interaction with Microphthalmia transcription factor (MITF), a master regulator of these cells, is unclear. Supporting the model that Tfap2 facilitates MITF's ability to activate expression of pigmentation genes, single-cell seq analysis of zebrafish embryos revealed that pigmentation genes are only expressed in the subset of mitfa-expressing cells that also express Tfap2 paralogs. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing; Expression profiling by high throughput sequencing

Platform:

GPL24676

46 Samples

Download data: BW, XLSX

(Submitter supplied) TFAP2A and MITF binding sites were identified in SK-MEL-28 cell lines using Cleavage Under Targets and Release Using Nuclease (CUT&RUN).

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL24676

6 Samples

Download data: BW

(Submitter supplied) The purpose of this study was to identify Tfap2a binding genome-wide in zebrafish embryos at 24hpf. Tfap2 transcription factors are essential regulators of neural crest development, melanocyte differentiation, and melanoma progression. We aimed to identify Tfap2a-occupied genes to determine direct Tfap2a-regulated transcriptional networks.

Organism:

Danio rerio

Type:

Other

Platform:

GPL24995

2 Samples

Download data: BED, BIGWIG

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL17021 GPL24247

10 Samples

Download data: MTX, TSV

(Submitter supplied) Cranial neural crest development is governed by positional gene regulatory networks (GRNs). Fine-tuning of the GRN components underly facial shape variation, yet how those in the midface are connected and activated remain poorly understood. Here, we show that concerted inactivation of Tfap2a and Tfap2b in the murine neural crest, even during the late migratory phase, results in a midfacial cleft and skeletal abnormalities. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24247

2 Samples

Download data: MTX, TSV

(Submitter supplied) Cranial neural crest development is governed by positional gene regulatory networks (GRNs). Fine-tuning of the GRN components underly facial shape variation, yet how those in the midface are connected and activated remain poorly understood. Here, we show that concerted inactivation of Tfap2a and Tfap2b in the murine neural crest, even during the late migratory phase, results in a midfacial cleft and skeletal abnormalities. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17021

2 Samples

Download data: NARROWPEAK

(Submitter supplied) Cranial neural crest development is governed by positional gene regulatory networks (GRNs). Fine-tuning of the GRN components underly facial shape variation, yet how those in the midface are connected and activated remain poorly understood. Here, we show that concerted inactivation of Tfap2a and Tfap2b in the murine neural crest, even during the late migratory phase, results in a midfacial cleft and skeletal abnormalities. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

6 Samples

Download data: XLSX

(Submitter supplied) The Notch pathway is a cell-cell communication system which is critical for many developmental processes, including craniofacial development. Notch receptor activation induces expression of several well-known canonical targets including those encoded by the hes and her genes in mammals and zebrafish, respectively. The function of these genes, individually and in combination, during craniofacial development is not well understood. more...

Organism:

Danio rerio

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24995

1 Sample

Download data: CSV, RDS

(Submitter supplied) Gene expression profiling of tissues derived from different genetic backgrounds can provide insight to potential phenotype-related changes in gene expression. We have compared wildtype C57BL/6 (melan-Ink4a) melanocyte cell gene expression to that of, “brown“ Tyrp1b/ b (melan-Ink4a-b) and “chocolate” Rab38 cht/cht (melan-cht) melanocyte derived lines. We observed alterations in gene expression consistent with a physiological response of melan-Ink4a-b cells to endoplasmic reticulum protein-folding impairment. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL4612

15 Samples

Download data: GPR

(Submitter supplied) Melanocytes, our pigment producing cells, originate from neural crest-derived progenitors during embryogenesis and from multiple stem cell niches in adult tissues. Although pigmentation traits are known risk-factors for melanoma, we lack lineage markers with which to identify melanocyte stem cell populations and study their function. Here, by combining live-imaging, scRNA-seq and chemical-genetics in zebrafish, we identify the transcription factor Tfap2b as a functional marker for the melanocyte stem cell (MSC) population that resides at the dorsal root ganglia site. more...

Organism:

Danio rerio

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24995

2 Samples

Download data: CSV

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL16791

27 Samples

Download data: TXT, WIG

(Submitter supplied) Microphthalmia-associated transcription factor (MITF) is the master regulator of the melanocyte lineage. By tandem affinity purification and mass spectrometry, we present a comprehensive characterisation of the MITF interactome comprising multiple novel cofactors involved in transcription, DNA replication and repair and chromatin organisation, including a BRG1 chromatin remodelling complex comprising CHD7. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16791

19 Samples

Download data: TXT

(Submitter supplied) Microphthalmia-associated transcription factor (MITF) is the master regulator of the melanocyte lineage. By tandem affinity purification and mass spectrometry, we present a comprehensive characterisation of the MITF interactome comprising multiple novel cofactors involved in transcription, DNA replication and repair and chromatin organisation, including a BRG1 chromatin remodelling complex comprising CHD7. more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL16791

8 Samples

Download data: WIG

(Submitter supplied) Stem cell establishment and fate assignment are critical for both early development, as well as regeneration. A committed cell state is characterized by its unique transcriptional landscape. In contrast, the upstream fate-biased state is often metastable and transitory, thereby mechanisms of specification are difficult to identify. In this study, we elucidate the role of a histone variant H2a.z.2 in specification of melanocyte lineage from multipotent neural crest cells. more...

Organism:

Danio rerio

Type:

Expression profiling by array

Platform:

GPL26813

4 Samples

Download data: TXT

(Submitter supplied) Waardenburg Syndrome (WS) is a rare genetic disorder that leads to congenital hearing loss and pigmentation defects. MITF is one of its pathogenic genes. While studied extensively in animal models, its pathogenic mechanism still poorly described in humans due to the challenges in accessing embryonic tissues. In recent years, patient-derived human induced pluripotent stem cells(iPSCs) technology offers a promising approach for modeling human melanocyte development and hereditary disease. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24676

18 Samples

Download data: TXT

(Submitter supplied) The MITF-low melanoma transcriptional signature is predictive of poor outcome for patients but little is known about its biological signature. We used genetic models of zebrafish with low expression of mitfa (MITF-low) to study this biological subtype. Using genetic inhibition of MITF activity we discover minimal residual disease at the site of regression. We performed single cell RNA-seq (Smart-seq2) to characterise cells at the site of residual disease, and put in relation with primary tumours and recurring disease.

Organism:

Danio rerio

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18413

332 Samples

Download data: TXT