This technical report introduces a transgene-free human embryo model known as the peri-gastrulation trilaminar embryonic disc (PTED) embryoid. Created from primed human pluripotent stem cells, these 3D structures successfully mimic the self-organizing properties of the critical human peri-gastrulation phase. The models feature a trilaminar disc situated between an amniotic-like sac and a yolk sac-...去小宇宙查看完整单集简介
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