Insights into epigenetic patterns in mammalian early embryos.

Insights into epigenetic patterns in mammalian early embryos.
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深入了解哺乳动物早期胚胎的表观遗传模式

DOI:
10.1007/s13238-020-00757-z
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发表时间:
2021-01
期刊:
影响因子:
21.1
通讯作者:
Gao S
Gao S
中科院分区:
生物学1区
文献类型:
--
作者:
Xu R;Li C;Liu X;Gao S

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哺乳动物的受精始于两个特化配子的融合,然后进行主要的表观遗传重塑,导致全能胚胎的形成。在植入前胚胎的发育过程中,精确的重编程进展是避免发育缺陷或胚胎致死的先决条件,但潜在的分子机制仍然难以捉摸。在过去的几年里,利用低输入全基因组染色质分析技术的多项进步和创新,在绘制哺乳动物早期胚胎发育过程中动态表观基因组调控网络方面取得了前所未有的突破。本综述的目的是重点介绍哺乳动物早期胚胎发生过程中表观遗传重塑机制的最新进展,包括 DNA 甲基化、组蛋白修饰、染色质可及性和 3D 染色质组织。
Mammalian fertilization begins with the fusion of two specialized gametes, followed by major epigenetic remodeling leading to the formation of a totipotent embryo. During the development of the pre-implantation embryo, precise reprogramming progress is a prerequisite for avoiding developmental defects or embryonic lethality, but the underlying molecular mechanisms remain elusive. For the past few years, unprecedented breakthroughs have been made in mapping the regulatory network of dynamic epigenomes during mammalian early embryo development, taking advantage of multiple advances and innovations in low-input genome-wide chromatin analysis technologies. The aim of this review is to highlight the most recent progress in understanding the mechanisms of epigenetic remodeling during early embryogenesis in mammals, including DNA methylation, histone modifications, chromatin accessibility and 3D chromatin organization.
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