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Quantitative Analysis of Protein Expression to Study Lineage Specification in Mouse Preimplantation Embryos
Published on: February 22, 2016
Epigenetic regulation in early embryo development: from zygotic genome activation to the first lineage specification
Ruimin Xu1, Yanhe Li2, You Wu3
1Clinical and Translation Research Center of Shanghai First Maternity and Infant Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China; Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai, 200120, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai, 200092, China.
Abstract:
Epigenetic regulation plays a pivotal role in orchestrating early embryo development, guiding the transition from a totipotent zygote to a complex multicellular organism. This review summarizes the dynamic landscape of epigenetic reprogramming during preimplantation embryo development, emphasizing the interplay between DNA methylation, histone modifications, higher-order chromatin, transposable elements (TEs), and RNA modifications in resetting the parental epigenome. We also summarize the abnormal epigenetic reprogramming observed in somatic cell nuclear transfer (SCNT) and assisted reproductive technologies (ART), as well as clinical disorders resulting from these epigenetic defects, and discuss potential therapeutic strategies and future research directions. We seek to elucidate the role of epigenetic modifications in developmental defects, offering perspectives to enhance both developmental biology studies and clinical applications of assisted reproduction.
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