1199-灵长类全能干细胞向早期器官发生的全程模拟 episode artwork

EPISODE · Jun 28, 2026 · 22 MIN

1199-灵长类全能干细胞向早期器官发生的全程模拟

from 聊聊Sci

这份研究报告介绍了一种利用食蟹猴全能性卵裂球样干细胞 (cTBLCs) 构建的新型灵长类类胚体系统。科研人员通过剪接体抑制策略成功将多能干细胞重编程为具有合子及2-4细胞期特征的全能性干细胞,并能稳定传代。这些细胞在无需外部信号诱导的情况下,能够自发组装成包含完整胚内与胚外谱系的类囊胚,并进一步发育至早期器官发生阶段。该系统不仅模拟了神经管形成、肠道区域化及心脏跳动等关键发育过程,还揭示了一个不依赖于传统受精相关事件的内在发育启动程序。通过单细胞转录组测序,研究人员定义了从全能性到器官发育的连续时空谱系演变,为研究灵长类早期发育和人类疾病提供了精简且全面的体外模型平台。References:Zheng W, Peng B, Chen Z, et al. Continuous modeling of primate embryogenesis from totipotency to early organogenesis[J]. Cell, 2026.前往小宇宙评论区与主播互动

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1199-灵长类全能干细胞向早期器官发生的全程模拟

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