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Multi-axial self-organisation properties of mouse embryonic stem cells into gastruloids [individual]

ABSTRACT: Multi-axial self-organisation properties of mouse embryonic stem cells into gastruloids [individual]

PROVIDER: PRJNA415971 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6224360.fastq.gz	Fastqsanger.gz
	SRR6224370.fastq.gz	Fastqsanger.gz
	SRR6224380.fastq.gz	Fastqsanger.gz
	SRR6224361.fastq.gz	Fastqsanger.gz
	SRR6224371.fastq.gz	Fastqsanger.gz

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Multi-axial self-organisation properties of mouse embryonic stem cells into gastruloids [individual]

Project description:Gastruloids, small aggregates of murine Embryonic Stem (ES) cells stimulated to undergo gastrulation-like symmetry breaking events in vitro (van den Brink, S. C. et al. 2014, Simunovic, M. & Brivanlou, A. H 2017). Analysis of the transcriptional profiles from pools of gastruloids collected at different time-points after aggregation (AA) revealed that gastruloids are capable of organizing an axially integrated post-occipital pattern of neural, mesodermal and endodermal derivatives that mimics that of the embryo in terms of gene expression. To test the homogeneity and reproducibility of the transcriptional programs uncovered by our bulked RNAseq experiments, we performed RNAseq analysis of individual gastruloids collected at different time-points AA (10 biological replicates per time-point). Our results indicates that the transcriptional profiles of gastruloid were highly reproducible at each time points and that each gastruloid implement the full diversity of transcriptional programs detected in our bulked RNAseq experiments.

2018-06-01 | GSE106226 | GEO

Multi-axial self-organisation properties of mouse embryonic stem cells into gastruloids

Project description:Multi-axial self-organisation properties of mouse embryonic stem cells into gastruloids

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Multi-axial self-organisation properties of mouse embryonic stem cells into gastruloids [bulk]

Project description:Multi-axial self-organisation properties of mouse embryonic stem cells into gastruloids [bulk]

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Multi-axial self-organisation properties of mouse embryonic stem cells into gastruloids [bulk]

Project description:Gastruloids are small aggregates of murine Embryonic Stem (ES) cells stimulated to undergo gastrulation-like symmetry breaking events in vitro (van den Brink, S. C. et al. 2014, Simunovic, M. & Brivanlou, A. H 2017). We analyzed the transcriptomic profiles of gastruloids at different time-points after aggregation (AA), showing that they are capable of organizing a post-occipital pattern of neural, mesodermal and endodermal derivatives that mimics that of the embryo in terms of gene expression.

2018-06-01 | GSE106225 | GEO

Multi-axial self-organisation properties of mouse embryonic stem cells into gastruloids [E6.5 to E9.5]

Project description:Multi-axial self-organisation properties of mouse embryonic stem cells into gastruloids [E6.5 to E9.5]

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Multi-axial self-organisation properties of mouse embryonic stem cells into gastruloids [E6.5 to E9.5]

Project description:Gastruloids are small aggregates of murine Embryonic Stem (ES) cells stimulated to undergo gastrulation-like symmetry breaking events in vitro (van den Brink, S. C. et al. 2014, Simunovic, M. & Brivanlou, A. H 2017). We analyzed the transcriptomic profiles of gastruloids at different time-points after aggregation (AA) and compared them with those of mouse embryo at different stages, raging from e6 to e9.5. We show that gastruloids are capable of organizing a post-occipital pattern of neural, mesodermal and endodermal derivatives that mimics that of the embryo in terms of gene expression.

2018-06-01 | GSE113885 | GEO

Multi-axial self-organisation properties of mouse embryonic stem cells into gastruloids

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

2018-06-01 | GSE106227 | GEO

Notch coordinates self-organization of germ layers and axial polarity in cnidarian gastruloids

Project description:Notch coordinates self-organization of germ layers and axial polarity in cnidarian gastruloids

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Notch coordinates self-organization of germ layers and axial polarity in cnidarian gastruloids

Project description:Dissociation and reaggregation experiments in several animal systems have revealed the stunning capacity of self-organization. Reaggregated early gastrula cells (here called gastruloids) of the sea anemone Nematostella vectensis are able to regenerate with only little delay whole organisms that are virtually indistinguishable from normal developing polyps. However, the molecular control underlying the restoration of body axis and germ layers remains largely unknown. To address this, we established a standardized protocol, which reproducibly generates gastruloids developing into polys with a single body axis. Here, we show that committed mesodermal and endodermal cells are sorted out to the surface of the aggregate, where mesodermal cells form clusters of about 30 cells. At a critical time point, one mesodermal cluster immigrates, along with peripherally attached endodermal cells. Thereby, the inner germ layer and the oral-aboral axis is established in one and the same process. Functional studies demonstrated that this polarization of the endodermal cells requires a feedback loop of Notch and Wnt signaling. The dissociation of the early embryo disrupts Notch signaling in the endodermal cells, which leads to transient adoption of an endomesodermal profile, marked by the expression of the mesodermal cadherin1 until the boundaries between the germ layer identities are re-established. Our results highlight distinct morphogenetic behaviors of mesodermal and endodermal cells and the hitherto unknown role of Notch signaling in germ layer boundary formation in self-organizing gastruloids. Conservation of Notch-mediated boundary formation between endoderm and mesoderm mirrors bilaterian mechanisms, demonstrating how adoption of ancestral regulatory networks governing morphogenesis likely enabled the diversification of metazoan body plans.

2025-09-15 | GSE307733 | GEO

Single-cell and spatial transcriptomics reveal somitogenesis in gastruloids

Project description:Gastruloids are three-dimensional aggregates of embryonic stem cells (ESCs) that display key features of mammalian post-implantation development, including germ layer specification and axial organization. Gastruloids have mostly been characterized with microscopy-based approaches, limiting the number of genes that can be explored. It is therefore unclear to what extent gene expression in gastruloids reflects in vivo embryonic expression. Using both single-cell RNA-seq (scRNA-seq) and spatial transcriptomics we systematically compared cell types and spatial expression patterns between mouse gastruloids and mouse embryos.

2019-12-05 | GSE123187 | GEO

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