Expanded potential: the key to synthetic embryo?

Expanded potential: the key to synthetic embryo?
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扩大潜力:合成胚胎的关键?

DOI:
10.1016/j.gde.2020.06.008
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发表时间:
2020-07
期刊:
Current Opinion in Genetics and Develoment
影响因子:
--
通讯作者:
Pentao Liu
Pentao Liu
中科院分区:
其他
文献类型:
--
作者:
Jian Yang;Haifeng Fu;Cheryl Tam;Pentao Liu

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胚胎如何获得全能性并发育成成人是一个基本的科学问题。从植入前胚胎中提取的干细胞或从具有全能性特征的体细胞中重新编程的干细胞已经建立。它们具有丰富的分子特征,包括转录、表观遗传修饰、染色质结构和代谢,类似于早期胚胎从2细胞(2C)到桑葚胚。在功能上,它们显示出更广泛的发育潜力,可以分化为胚胎和胚胎外组织中的细胞类型。通过将这些干细胞单独诱导成胚胎样结构或与其他胚胎来源的干细胞聚集,进一步证明了扩大的发育潜力。合成的胚胎样结构不仅有助于解剖早期胚胎发育的关键事件,而且可以作为研究妊娠相关并发症的模型。
How does an embryo acquire totipotency and develop into an adult is a fundamental scientific question. Stem cells derived from pre-implantation embryos or reprogrammed from somatic cells with totipotency features have been established. They have enriched molecular features, including transcription, epigenetic modification, chromatin structure and metabolism, similar to early embryos from 2 cell (2C) to morula. Functionally, they display a broader developmental potential to differentiate into cell types in the embryonic and extraembryonic tissues. The expanded developmental potential was further demonstrated by inducing these stem cells into embryo-like structures alone or aggregating with other embryo-derived stem cells. The synthetic embryo-like structures not only facilitate the dissection of key events in early embryonic development, but also serve as a model for investigating pregnancy related complications.
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