Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Self-organised pattern formation in the developing dorsal neural tube by a temporal relay of BMP signalling

ABSTRACT: Developing tissues interpret dynamic changes in morphogen activity to generate cell type diversity. To quantitatively study BMP signalling dynamicsin the vertebrateneural tube, we developed a new ES cell differentiation systemtailored for growing tissues. Differentiating cellsform strikingself-organised pattern of dorsal neural tube cell typesdriven by sequential phases of BMP signalling that are observed both in vitro and in vivo.Data-driven biophysical modelling showed that thesedynamics result from coupling fast negative feedbackwithslow positive regulation of signalling bythe specification of an endogenousBMP source.Thus, in contrast to relays that propagate morphogen signalling in space, we uncover a BMP signallingrelay that operates intime. This mechanism allows rapid initial concentration-sensitive response that is robustly terminated, thereby regulating balanced sequential cell type generation.Altogether, our study provides an experimental and theoretical framework to understand how signalling dynamicsis exploited indeveloping tissues.

ORGANISM(S): Mus musculus

PROVIDER: GSE247069 | GEO | 2024/08/19

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Self-organised pattern formation in the developing dorsal neural tube by a temporal relay of BMP signalling

Project description:Self-organised pattern formation in the developing dorsal neural tube by a temporal relay of BMP signalling

| PRJNA1036160 | ENA

Standard ATAC-seq from sorted Olig2-expressing cells for CaTS-ATAC QC

Project description:In many developing tissues the spatial and temporal pattern of gene expression is organised by secreted signals functioning in a graded manner over multiple cell diameters. Cis Regulatory Elements (CREs) interpret these graded inputs to control gene expression. How this is accomplished remains poorly understood. The morphogen Sonic hedgehog (Shh) acts in a graded manner to direct neural progenitor specification in the neural tube. Here, we uncover two distinct ways in which CREs translate graded Shh signaling into differential gene expression. A common set of CREs are used to control gene activity in the majority of ventral neural progenitors. These CREs integrate cell type specific inputs to control gene expression. By contrast, the most ventral progenitors use a unique set of CREs. These are established by the pioneer factor FOXA2, paralleling the role of FOXA2 in endoderm. Moreover, FOXA2 binds a subset of the same sites in neural and endoderm cells. Together the data identify distinct cis regulatory strategies for the interpretation of morphogen signaling and raise the possibility of an evolutionarily conserved role for Foxa2-mediated cell specification across tissues.

2022-10-05 | GSE214781 | GEO

Cell type specific ATACseq (Crosslinked and TF-Sorted ATAC-seq (CaTS-ATAC)) reveals two distinct cis regulatory strategies for Shh interpretation in the mouse ventral neural tube

2022-06-06 | GSE204690 | GEO

Foxa2 overexpression is sufficient to establish the p3 neural progenitor chromatin landscape

2022-06-06 | GSE204664 | GEO

Cell type specific RNAseq from crosslinked and and TF-Sorted ventral neural tube cell types

2022-06-06 | GSE204920 | GEO

Gene expression profile of neighboring cells of cells with unfit Wnt morphogen gradient during cell competition

Project description:Morphogen signalling forms an activity gradient and instructs cell identities in a signalling strength-dependent manner to pattern developing tissues. However, developing tissues also undergo dynamic morphogenesis, which may produce cells with unfit morphogen signalling and consequent noisy morphogen gradient. Here we show that a cell competition-related system corrects such noisy morphogen gradients. Zebrafish imaging analyses of the Wnt/β-catenin signalling gradient, which acts as a morphogen to establish embryonic anterior-posterior patterning, revealed that unfit cells with abnormal Wnt/β-catenin activity spontaneously appear and produce noise in the gradient. Communication between unfit and neighbouring fit cells via cadherin proteins stimulates apoptosis of the unfit cells by activating Smad signalling and reactive oxygen species production. This unfit cell elimination is required for proper Wnt/β-catenin gradient formation and consequent anterior-posterior patterning. Because this gradient controls patterning not only in the embryo but also in adult tissues, this system may support tissue robustness and disease prevention.

2024-11-15 | GSE254439 | GEO

Gene expression profile of cells with unfit Wnt morphogen gradient during cell competition

2019-09-15 | GSE133526 | GEO

Construction of a dorsal-ventral patterned neural tube organoid from pluripotent stem cells.

Project description:Purpose: Characterization of cell types in wild-type and TCTN2 KO human neural tube organoids (hNTOs). Methods: Wild-type and TCTN2 KO hNTOs were harvested at day11. Libraries were prepared using Single Cell 3′Library & gel Bead kit v3.1 (10x Genomics, Cat# PN-1000121) according to the manufacturer’s protocol for 10000 cells recovery. Results: 13 neural progenitor cells were detected in wild-type hNTOs, and TCTN2 deficiency led to reduction of ventral progenitors cells. Conclusions: A well-organized nueral tube organoid was constructed by applying BMP and SHH morphogen gradients.

2024-02-06 | GSE254817 | GEO

Identification of direct transcriptional targets of BMP signaling during zebrafish dorsal-ventral axial patterning

Project description:To determine the mechanism of BMP morphogen interpretation in the zebrafish gastrula, we identified genes that are dependent on BMP signaling for their expression, as well as the genes directly regulated by BMP signaling using RNA-sequencing.

2020-12-12 | GSE163047 | GEO

Morphogen-signalling modifying factors in Panarthropoda

Project description:morphogen-signalling modifying factors in Panarthropoda

| PRJEB28122 | ENA