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A regulatory sub-circuit downstream of Wnt signaling controls developmental transitions in neural crest development

ABSTRACT: A regulatory sub-circuit downstream of Wnt signaling controls developmental transitions in neural crest development

PROVIDER: PRJNA639815 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12844804_1.fastq.gz	Fastqsanger.gz
	SRR12844804_2.fastq.gz	Fastqsanger.gz
	SRR12844805_1.fastq.gz	Fastqsanger.gz
	SRR12844805_2.fastq.gz	Fastqsanger.gz
	SRR12844806_1.fastq.gz	Fastqsanger.gz

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A regulatory sub-circuit downstream of Wnt signaling controls developmental transitions in neural crest development

Project description:The process of cell fate commitment requires sequential changes in the gene expression profiles of embryonic progenitors. This is exemplified in the development of the neural crest, a migratory stem cell population derived from the ectoderm of vertebrate embryos. Neural crest formation involves a series of regulatory changes, in which cells adopt distinct transcriptional states in a stepwise manner. The mechanisms underpinning these shifts in cell identity are still poorly understood. Here we employ enhancer analysis to identify a genetic sub-circuit that controls developmental transitions in neural crest development. This sub-circuit links Wnt target genes in an incoherent forward loop that controls the sequential activation of genes in the neural crest lineage. By examining the cis-regulatory apparatus of Wnt effector gene AXUD1, we found that multipotency factor SP5 directly promotes neural plate border identity, while inhibiting premature specification by interacting with tissue specific enhancers.

2020-12-17 | GSE152599 | GEO

A regulatory sub-circuit downstream of Wnt signaling controls developmental transitions in neural crest formation.

Project description:The process of cell fate commitment involves sequential changes in the gene expression profiles of embryonic progenitors. This is exemplified in the development of the neural crest, a migratory stem cell population derived from the ectoderm of vertebrate embryos. During neural crest formation, cells transition through distinct transcriptional states in a stepwise manner. The mechanisms underpinning these shifts in cell identity are still poorly understood. Here we employ enhancer analysis to identify a genetic sub-circuit that controls developmental transitions in the nascent neural crest. This sub-circuit links Wnt target genes in an incoherent feedforward loop that controls the sequential activation of genes in the neural crest lineage. By examining the cis-regulatory apparatus of Wnt effector gene AXUD1, we found that multipotency factor SP5 directly promotes neural plate border identity, while inhibiting premature expression of specification genes. Our results highlight the importance of repressive interactions in the neural crest gene regulatory network and illustrate how genes activated by the same upstream signal become temporally segregated during progressive fate restriction.

| S-EPMC7846109 | biostudies-literature

Gene expression analysis of neural crest in zebrafish to identify novel downstream targets of Twist1

Project description:sox10:GFP transgenic embryos were used to FACS sort neural crest and microarray analysis was done to compare genes expressed differentially between GFP positive and negative and fold changes were compared to differentially expressed genes in embryos treated with morpholino oligonucleotides to knockdown function of Twist1 A Nimblegen catalog design microarray study done in biological triplicates to analyze expression of genes in neural crest and regulated by Twist1

2011-09-22 | E-GEOD-32308 | biostudies-arrayexpress

Single-cell transcriptome analysis of avian neural crest migration reveals signatures of invasion and molecular transitions

Project description:Single-cell transcriptome analysis of avian neural crest migration reveals signatures of invasion and molecular transitions

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Single-cell transcriptome analysis of avian neural crest migration reveals signatures of invasion and molecular transitions [scRNA-seq]

Project description:Neural crest cells migrate throughout the embryo, but how cells move in a directed and collective manner has remained unclear. Here, we perform the first single-cell transcriptome analysis of cranial neural crest cell migration at three progressive stages in chick and identify and establish hierarchical relationships between cell position and time-specific transcriptional signatures. We determine a novel transcriptional signature of the most invasive neural crest Trailblazer cells that is consistent during migration and enriched for approximately 900 genes. Knockdown of several Trailblazer genes shows significant but modest changes to total distance migrated. However, in vivo expression analysis by RNAscope and immunohistochemistry reveals some salt and pepper patterns that include strong individual Trailblazer gene expression in cells within other subregions of the migratory stream. These data provide new insights into the molecular diversity and dynamics within a neural crest cell migratory stream that underlie complex directed and collective cell behaviors.

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Norepinephrine transporter-deficient neural crest cells

Project description:Background: The goal of this study was to determine the transcriptional consequences of norepinephrine transporter (NET) gene deletion in noradrenergic neuron differentiation. The norepinephrine transporter (NET) is the target of powerful mind-altering substances, such as tricyclic antidepressants and the drug of abuse, cocaine. NET function in adult noradrenergic neurons of the peripheral and central nervous systems is that of a scavenger that internalizes norepinephrine from the synaptic cleft. By contrast, norepinephrine (NE) transport has a different role in embryogenesis. It promotes differentiation of neural crest cells and locus ceruleus progenitors into noradrenergic neurons, whereas NET inhibitors, such as the tricyclic antidepressant desipramine and the drug of abuse, cocaine, inhibit noradrenergic differentiation. While NET structure und regulation of NET function is well described, little is known about downstream targets of NE transport. Results: We have determined by long serial analysis of gene expression (LongSAGE) the gene expression profiles of in vitro differentiating wild type and norepinephrine transporter-deficient (NETKO) neural crest derivatives. Comparison analyses with the wild type library (GSM 105765) have identified a number of important differentially expressed genes, including genes relevant to noradrenergic neuron differentiation and to the phenotype of NETKO mice. Furthermore we have identified novel differentially expressed genes. Conclusions: Loss of NET function during embryonic development deregulates signaling pathways that are critically involved in neural crest formation and noradrenergic neuron differentiation. The library was constructed from total RNA of 60 neural crest culture at culture day 7. The neural tubes were dissected from E9.5 embryos that lack the norepinephrine transporter gene.

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Single-cell transcriptome analysis of avian neural crest migration reveals signatures of invasion and molecular transitions [bulk RNA-seq]

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Single-cell transcriptome analysis of avian neural crest migration reveals signatures of invasion and molecular transitions [scRNA-seq]

Project description:Single-cell transcriptome analysis of avian neural crest migration reveals signatures of invasion and molecular transitions [scRNA-seq]

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Global ubiquitinome profiling identify Nedd4 as aregulator of Profilin 1 and actin remodeling in neural crest cells

Project description:We utilized quantitative analyses of the proteome, transcriptome, and ubiquitinome to study how ubiquitination and NEDD4 control neural crest cell survival and stem-cell-like properties. We report 276 novel NEDD4 targets in neural crest cells and show that loss of NEDD4 leads to a striking global reduction in specific ubiquitin lysine linkages.

2022-02-08 | PXD024103 | Pride

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Project description:We report the characterization of a synthetic genetic circuit using RNA-Seq data. Data is collected for all input inducer combinations and cells harboring the circuit are grown in two conditions (14 ml culture tubes and 250 ml Erlenmeyer flasks).

2017-09-29 | GSE88835 | GEO

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