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

ABSTRACT: 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.

ORGANISM(S): Mus musculus

PROVIDER: GSE106226 | GEO | 2018/06/01

REPOSITORIES: GEO

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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.

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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

Multimodal characterization of murine gastruloid development

Project description:Gastruloids are highly scalable, three-dimensional assemblies generated from pluripotent stem cells that recapitulate fundamental principles of embryonic pattern formation in vitro. Using single cell RNA and multiome sequencing we provide a comprehensive resource mapping cellular states and cell types found during gastruloid development and compare them to the in vivo embryo. We further develop a high throughput gastruloid handling and imaging pipeline to spatially monitor cell type emergence and unfolding of symmetry breaking during gastruloid development. We report spatial variability of pluripotency states in early gastruloids that determines a binary cell response to Wnt activation. While cells situated in the core of the gastruloid revert to an ectopic pluripotent state, peripheral cells differentiate to a primitive streak like state. These two populations then cause gastruloids to break radial symmetry, allowing axial elongation and commitment to the three embryonic germ layers. Finally by performing a phenotypic compound screen, we perturb thousands of gastruloids at relevant developmental time points deriving a phenotypic landscape and inferring molecular regulator networks underlying gastruloid development. Employing this resource, we improve the formation of anterior structures in the existing gastruloid model, using a dual Wnt modulation approach to differentiate an anterior ectopic pluripotent core to anterior ecto- and endodermal structures. This work gives is a resource to understand how gastruloids develop and, more generally, how homogenous cell populations can generate complex patterns in vitro.

2023-09-07 | GSE229386 | GEO

Gastruloids generated without exogenous Wnt activation develop anterior neural tissues [EmbryoidsTruseq2]

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2023-07-20 | GSE232861 | GEO

Epigenetic reprogramming of intestinal stemness by dietary arachidonic acid [intestinal organoids]

Project description:We evaluated the effects of arachidonic acid (AA) on intestinal stem cell regeneration by RNA-seq and found that AA treatment led to strong upregulation of genes that are associated with stem cell reprogramming across the time points. AA elicits a conserved stem cell regeneration program in mouse intestinal organoids.

2023-03-01 | GSE188213 | GEO

Deep sequencing the circadian transcriptome of Drosophila brain

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2023-12-04 | E-MTAB-12749 | biostudies-arrayexpress

Deep sequencing the circadian transcriptome of Drosophila brain

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2012-01-01 | E-GEOD-29972 | biostudies-arrayexpress

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