Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Efficient mouse embryo models from stem cells for environmental studies

ABSTRACT: Blastoids are stem cell-derived structures that mimic natural blastocysts, including formation of the trophectoderm, epiblast, and primitive endoderm lineages. However, current methods often produce incomplete structures that do not cavitate or form sufficient primitive endoderm. We developed a new approach to enhance blastoid formation by aggregating embryonic stem cells (ESCs) with ESCs transiently expressing Gata4 (iG4-ESCs) to promote the primitive endoderm fate, followed by addition of trophoblast stem cells (TSCs). This method achieved an ~80% efficiency in forming cavitated blastocyst-like structures, termed iG4-blastoids. Single-cell RNA sequencing revealed that iG4-blastoids resemble day 4.5 blastocysts. iG4-blastoids cultured in media lacking FGF4 showed improved specification of the invasive mural trophectoderm. iG4-blastoids underwent post-implantation remodeling, with ~12% forming an egg cylinder-like structure. Notably, blastoid formation was affected by caffeine, alcohol, nicotine, and amino acid levels. Thus, iG4-blastoids are a robust model for screening diverse environmental factors for their consequences on embryogenesis.

ORGANISM(S): Mus musculus

PROVIDER: GSE271157 | GEO | 2025/07/25

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Single-cell RNA-seq for mouse NrESC-blastoids

Project description:Embryonic stem cells upon extrinsic induction could self-assemble into blastocyst-like structures. However, the intrinsic regulation of such blastoid forming potential remain to be addressed. We discover that the activity of nuclear receptor subfamily 1, group H, member 2 (Nr1h2) in expanded potential stem cell (EPSC) positively correlates with blastoid efficiency and quality. In addition, Nr1h2 agonist, T0901317, improves natural blastocyst development. Surprisingly, Nr1h2-activated ESC (NrESC) is rewired towards a distinct pluripotency state that is capable of self-organizing into blastoids and contribute to embryonic and extraembryonic lineage. We aim at characterizing the NrESC-derived blastoids by single-cell RNA-seq and show that blastoid comprise of epiblast-like, trophectoderm-like and primitive endoderm-like populations, which is the same as blastocyst composition and shows respective gene marker expression for each cluster. Thus, NrESC has attained a unique expanded pluripotency state driven by Nr1h2 activation.

2024-10-23 | GSE217826 | GEO

Cynomolgus monkey embryo model captures gastrulation and early pregnancy

Project description:Here, we constructed monkey blastoids resembling blastocysts in morphology and transcriptomics using naïve ESCs and optimized protocol. The synthetic blastoids could develop to embryonic disk stage with the structure of yolk sac, chorionic cavity, amnion cavity, primitive streak, connecting stalk along the rostral–caudal axis by in-vitro prolonged culture (IVC). Primordial germ cells, gastrulating cells, visceral endoderm/yolk-sac endoderm, three germ layers and haemato-endothelial progenitors were identified in the monkey blastoid IVC embryo by single-cell transcriptomics or immunostaining. Besides, pregnancies with early gestation sacs were achieved by transferring monkey blastoids to surrogates. Our results revealed the in-vitro gastrulation and in-vivo early pregnancy of primate synthetic embryos, providing a powerful system to dissect primate embryonic development with less ethical concerns and restrict access.

2023-04-06 | GSE218375 | GEO

Bulk and single-cell RNA-seq of mouse blastocyst, blastoid Trophoblast stem cells and Embryonic stem cells

Project description:We did bulk and single cell RNA sequencing of blastocysts, blastoids, trophoblast stem cells (TSC) and embryonic stem cells (ESC). The goal of these experiment is to describe the transformations of the transcriptome occurring within cells (TSC, ESC) upon formation of a blastoid. E3.25 and E3.5 blastocysts are used as controls. To this end, we first did RNA sequencing of intact structures (E3.25 and E3.5 blastocysts, blastoids, and parental cell lines). In a different series of experiments, we micro-dissected blastocyst, blastoid or trophosphere structures into single cells, and sequenced their mRNAs, to infer cell identity and transcriptome variations.

2018-05-07 | GSE99786 | GEO

Human blastoids model blastocyst development and implantation

Project description:About one week after fertilization, human embryos implant into the uterus. This necessitates the formation of a blastocyst consisting of a sphere encircling a cavity lodging the embryo proper. Stem cells can form a blastocyst model, which we termed blastoid. Here we show that naive human pluripotent stem cells (PXGL hPSCs) efficiently (>70%) form blastoids generating blastocyst-stage analogs of the 3 founding lineages (>97% trophectoderm, epiblast, and primitive endoderm) according to the sequence and to the pace of blastocyst development. Blastoids form the first axis and we observe that the epiblast induces the maturation of the polar trophectoderm that consequently acquires the specific and transient potential to attach to hormonally-stimulated endometrial cells. Such human blastoids are faithful, scalable, versatile, and ethical models to explore human implantation and development.

2021-09-15 | GSE177689 | GEO

Generation of human blastocyst-like structures from pluripotent stem cells

Project description:Human blastocysts are comprised of the first three cell lineages of the embryo: trophectoderm, epiblast, and primitive endoderm, all of which are essential for early development and organ formation1,2. However, due to ethical concerns and restricted access to human blastocysts, we lack a comprehensive understanding of early human embryogenesis. To bridge this knowledge gap, we need a reliable model system that recapitulates early stages of human embryogenesis. Here we report a ∼three-dimensional (3D), two-step induction protocol for generating blastocyst-like structures (EPS-blastoids) from human extended pluripotent stem (EPS) cells. Morphological and single-cell transcriptomic analyses revealed that EPS-blastoids contain key cell lineages and are transcriptionally similar to human blastocysts. Furthermore, EPS-blastoids also exhibited the developmental potential to undergo post-implantation morphogenesis in vitro to form structures with a cellular composition and transcriptome signature similar to human embryos that had been cultured in vitro for 8 or 10 days. In conclusion, human EPS-blastoids provide a new experimental platform for studying early developmental stages of the human embryo.

2021-05-08 | GSE174034 | GEO

Nuclear Receptor-SINE B1 Network Modulates Expanded Pluripotency in Blastoids and Blastocysts [RNA-seq 2]

Project description:Embryonic stem cells possess the remarkable ability to self-organize into blastocyst-like structures upon induction. These synthetic embryo models serve as invaluable platforms for studying embryogenesis and therapeutic developments. Nevertheless, the specific intrinsic regulators that govern this potential for blastoid formation remain unknown. Here we demonstrate a novel intrinsic program that plays a crucial role in both blastoids and blastocysts across multiple species. We first establish metrics for grading the resemblance of blastoids to mouse blastocysts, and identify the differential activation of gene regulons involved in lineage specification among various blastoid grades. Notably, abrogation of nuclear receptor subfamily 1, group H, member 2 (Nr1h2) drastically reduces blastoid formation. Nr1h2 activation alone is sufficient to rewire conventional ESC into a distinct pluripotency state, enabling them to form blastoids with enhanced implantation capacity in the uterus and contribute to both embryonic and extraembryonic lineages in vivo. Through integrative multi-omics analyses, we uncover the broad regulatory role of Nr1h2 in the transcriptome, chromatin accessibility and epigenome, targeting genes associated with embryonic lineage and the transposable element SINE-B1. The Nr1h2-centred intrinsic program governs and drives the development of both blastoids and early embryos.

2025-04-10 | GSE293870 | GEO

Nuclear Receptor-SINE B1 Network Modulates Expanded Pluripotency in Blastoids and Blastocysts [RNA-seq 1]

2025-04-10 | GSE293869 | GEO

Nuclear Receptor-SINE B1 Network Modulates Expanded Pluripotency in Blastoids and Blastocysts [ChIP-seq 2]

2025-04-10 | GSE293868 | GEO

Nuclear Receptor-SINE B1 Network Modulates Expanded Pluripotency in Blastoids and Blastocysts [ChIP-seq 1]

2025-04-10 | GSE293867 | GEO

Protein expression landscape defines the formation potential of mouse blastoids from EPS cells

Project description:Preimplantation embryo development is a precisely regulated process organized by maternally inherited and newly synthesized proteins. Recently, some studies have reported that blastocyst-like structures, named blastoids, can be generated from mouse ESCs (embryonic stem cells) or EPSCs (extended pluripotent stem cells). In this study, to explore the dynamic expression characteristics of proteins and their PTMs in mouse EPS blastoids, we revealed the protein expression profile of EPS-blastoids and metabolite characteristics by TMT-based quantitative mass spectrometry (MS) strategy. Furthermore, the protein phosphorylation sites were identified to show the phosphoproteomic analysis in blastoids compared with mouse early embryos. Above all, our study revealed the protein expression profile of EPS blastoids compared with mouse embryos during preimplantation development and indicated that glucose metabolism is key to blastoid formation.

2022-04-04 | PXD031002 | Pride

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data