Abstract:
:A single mouse blastomere from an embryo until the 8-cell stage can generate an entire blastocyst. Whether laboratory-cultured cells retain a similar generative capacity remains unknown. Starting from a single stem cell type, extended pluripotent stem (EPS) cells, we established a 3D differentiation system that enabled the generation of blastocyst-like structures (EPS-blastoids) through lineage segregation and self-organization. EPS-blastoids resembled blastocysts in morphology and cell-lineage allocation and recapitulated key morphogenetic events during preimplantation and early postimplantation development in vitro. Upon transfer, some EPS-blastoids underwent implantation, induced decidualization, and generated live, albeit disorganized, tissues in utero. Single-cell and bulk RNA-sequencing analysis revealed that EPS-blastoids contained all three blastocyst cell lineages and shared transcriptional similarity with natural blastocysts. We also provide proof of concept that EPS-blastoids can be generated from adult cells via cellular reprogramming. EPS-blastoids provide a unique platform for studying early embryogenesis and pave the way to creating viable synthetic embryos by using cultured cells.
journal_name
Celljournal_title
Cellauthors
Li R,Zhong C,Yu Y,Liu H,Sakurai M,Yu L,Min Z,Shi L,Wei Y,Takahashi Y,Liao HK,Qiao J,Deng H,Nuñez-Delicado E,Rodriguez Esteban C,Wu J,Izpisua Belmonte JCdoi
10.1016/j.cell.2019.09.029subject
Has Abstractpub_date
2019-10-17 00:00:00pages
687-702.e18issue
3eissn
0092-8674issn
1097-4172pii
S0092-8674(19)31080-3journal_volume
179pub_type
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