Human naïve stem cell models reveal the role of FGF in hypoblast specification in the human embryo
Human naïve stem cell models reveal the role of FGF in hypoblast specification in the human embryo
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人类幼稚干细胞模型揭示了 FGF 在人类胚胎下胚层规范中的作用
DOI:
10.1101/2023.11.30.569161
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Dattani A
中科院分区:
文献类型:
--
作者:
Dattani A
The hypoblast is an essential extra-embryonic tissue set aside within the inner cell mass early in mammalian embryo development, in the blastocyst. Research with human embryos is challenging. Thus, stem cell models that reproduce hypoblast differentiation provide valuable alternatives. We show here that human naïve PSC to hypoblast differentiation proceeds via reversion to a transitional ICM-like state, from which hypoblast emerges in concordance with the trajectory in human blastocysts. We identified a window when fibroblast growth factor (FGF) signalling is critical for hypoblast specification. Revisiting FGF signalling in human embryos revealed that inhibition in the early blastocyst suppresses hypoblast formation.In vitro, the induction of hypoblast is synergistically enhanced by limiting trophectoderm and epiblast fates. This finding revises previous reports and establishes a conservation in lineage specification between mouse and human. Overall, this study demonstrates the utility of human naïve PSC-based models in elucidating mechanistic features of early human embryogenesis.
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影响因子:
11.8
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通讯作者:
Hadjantonakis AK
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DOI:
10.3929/ethz-b-000377412
发表时间:
2019
期刊:
--
影响因子:
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通讯作者:
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D. Rappolee;C. Basilico;Yogesh Patel;Z. Werb
影响因子:
23.9
作者:
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通讯作者:
Guo G