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Hypoblast from human pluripotent stem cells regulates epiblast development

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Homo sapiens

PROVIDER: GSE131747 | GEO | 2023/10/17

REPOSITORIES: GEO

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Hypoblast from human pluripotent stem cells regulates epiblast development [scRNA-seq]

Project description:Recently, several studies using cultures of human embryos together with single-cell RNA-seq (scRNA-seq) analyses have revealed differences between humans and mice, necessitating the study of human embryos. Despite the importance of human embryology, ethical and legal restrictions have limited post-implantation stage studies. Thus, recent efforts have focused on developing in vitro self-organising models using human stem cells. Here, we established a genetic approach to generate authentic hypoblast cells (nHyC) - known to give rise to one of the two extraembryonic tissues essential for embryonic development - from naïve human pluripotent stem cells (hPSCs). Our nHyCs spontaneously assemble with naïve hPSCs to form a three-dimensional bilaminar structure (bilaminoids) with a pro-amniotic-like cavity. In the presence of additional naïve hPSC-derived analogues of the second extraembryonic tissue, the trophectoderm, the efficiency of bilaminoid formation increases from 20% to 40%, and the epiblast within the bilaminoids continues to grow due to IL6 secreted by the trophectoderm. Furthermore, we show that bilaminoids robustly recapitulate the patterning of the anterior-posterior axis and the formation of cells reflecting the pre-gastrula stage, whose emergence can be shaped by genetically manipulating the DKK1/OTX2 hypoblast-like domain. We therefore model and reveal mechanisms by which the two extraembryonic tissues efficiently guide the stage-specific growth and progression of the epiblast as it establishes the post-implantation landmarks of human embryogenesis.

2023-10-17 | GSE233715 | GEO

Hypoblast from human pluripotent stem cells regulates epiblast development [RNA-seq]

Project description:Recently, several studies using cultures of human embryos together with single-cell RNA-seq (scRNA-seq) analyses have revealed differences between humans and mice, necessitating the study of human embryos 1-8. Despite the importance of human embryology, ethical and legal restrictions have limited post-implantation stage studies. Thus, recent efforts have focused on developing in vitro self-organising models using human stem cells 9-18. Here, we established a genetic approach to generate authentic hypoblast cells (nHyC) - known to give rise to one of the two extraembryonic tissues essential for embryonic development - from naïve human pluripotent stem cells (hPSCs). Our nHyCs spontaneously assemble with naïve hPSCs to form a three-dimensional bilaminar structure (bilaminoids) with a pro-amniotic-like cavity. In the presence of additional naïve hPSC-derived analogues of the second extraembryonic tissue, the trophectoderm, the efficiency of bilaminoid formation increases from 20% to 40%, and the epiblast within the bilaminoids continues to grow due to IL6 secreted by the trophectoderm. Furthermore, we show that bilaminoids robustly recapitulate the patterning of the anterior-posterior axis and the formation of cells reflecting the pre-gastrula stage, whose emergence can be shaped by genetically manipulating the DKK1/OTX2 hypoblast-like domain. We therefore model and reveal mechanisms by which the two extraembryonic tissues efficiently guide the stage-specific growth and progression of the epiblast as it establishes the post-implantation landmarks of human embryogenesis.

2023-10-17 | GSE233959 | GEO

Derivation of hypoblast stem cells from rat embryonic stem cells.

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

2019-01-01 | GSE104698 | GEO

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