Modeling human pregastrulation development by 3D culture of blastoids generated from primed-to-naïve transitioning intermediates
Received date: 26 Jun 2022
Accepted date: 26 Aug 2022
Published date: 15 May 2023
Copyright
Human pluripotent stem cells provide an inexhaustible model to study human embryogenesis in vitro. Recent studies have provided diverse models to generate human blastoids by self-organization of different pluripotent stem cells or somatic reprogramming intermediates. However, whether blastoids can be generated from other cell types or whether they can recapitulate postimplantation development in vitro is unknown. Here, we develop a strategy to generate human blastoids from heterogeneous intermediates with epiblast, trophectoderm, and primitive endoderm signatures of the primed-to-naïve conversion process, which resemble natural blastocysts in morphological architecture, composition of cell lineages, transcriptome, and lineage differentiation potential. In addition, these blastoids reflect many features of human peri-implantation and pregastrulation development when further cultured in an in vitro 3D culture system. In summary, our study provides an alternative strategy to generate human blastoids and offers insights into human early embryogenesis by modeling peri- and postimplantation development in vitro.
Zhifen Tu , Yan Bi , Xuehao Zhu , Wenqiang Liu , Jindian Hu , Li Wu , Tengyan Mao , Jianfeng Zhou , Hanwei Wang , Hong Wang , Shaorong Gao , Yixuan Wang . Modeling human pregastrulation development by 3D culture of blastoids generated from primed-to-naïve transitioning intermediates[J]. Protein & Cell, 2023 , 14(5) : 337 -349 . DOI: 10.1093/procel/pwac041
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