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Stem cell-derived mouse embryos develop within an extra-embryonic yolk sac to form anterior brain regions and a beating heart

ABSTRACT: We report the analysis by inDrop single cell sequencing of mouse embryos at embryonic day E6.5, E7.5 and E8.5 as well as the analysis of stem cell derived synthetic embryos generated with the previously reported protocol (Amadei et al., 2021) and cultured to day 5, day 6 and day 8 of development. We find that all the cell types present in the natural embryos examined at these timepoints were also present in their synthetic counterparts. Furthermore, in these synthetic structures we observed formation of neuroectoderm and surface ectoderm, a beating heart, gut and primordial germ cells and development occurred inside extraembryonic membranes (yolk sac and amnion) similarly to what occurs in natural development. We conclude that these synthetic embryos are a unique tool to recapitulate mouse post-implantation development.

ORGANISM(S): Mus musculus

PROVIDER: GSE189425 | GEO | 2022/08/12

REPOSITORIES: GEO

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Inducible stem cell-derived embryos capture mouse morphogenetic events in vitro

Project description:We report the analysis by inDrop single cell sequencing of mouse embryos at embryonic day E5.5 and E6.5 as well as the analysis of stem cell derived synthetic embryos at day 4 of development generated with the standard protocol (Sozen et al., 2018) and the new protocol reported in this study. We find that the visceral endoderm-like layer of the synthetic embryos generated with the new protocol is much more similar to the visceral endoderm of mouse embryos than the layer of the synthetic embryos generated with the standard protocol, and this new and improved visceral endoderm-like layer endows these novel synthetic embryos with broader developmental potential

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Amnion signals are essential for mesoderm formation in primates

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