期刊
NATURE PROTOCOLS
卷 9, 期 12, 页码 2732-2739出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nprot.2014.186
关键词
-
资金
- Wellcome Trust
- European Molecular Biology Organization (EMBO)
The implanting mouse blastocyst invades the uterine stroma and undergoes a dramatic transformation into an egg cylinder. The morphogenetic and signaling events during this transition are largely unexplored, as the uterine tissues engulf the embryo. Here we describe a protocol supporting the development of the mouse embryo beyond the blastocyst stage in vitro. We established two types of medium to be applied sequentially, and we used a substrate permitting high-resolution imaging of the transition from blastocyst to egg cylinder. We developed two variants of this protocol: the first starts with intact early blastocysts that upon zona removal can attach to the substrate and develop into egg cylinders after 5 d, and the second starts with late blastocysts that upon dissection of the mural trophectoderm form egg cylinders in only 3 d. This method allows observation of a previously hidden period of development, and it provides a platform for novel research into peri-implantation embryogenesis and beyond.
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