Extra-embryonic Wnt3 regulates the establishment of the primitive streak in mice.

Extra-embryonic Wnt3 regulates the establishment of the primitive streak in mice.
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DOI:
10.1016/j.ydbio.2015.04.008
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发表时间:
2015-07-01
影响因子:
2.7
通讯作者:
Rivera-Perez, Jaime A.
Rivera-Perez, Jaime A.
中科院分区:
生物学3区
文献类型:
--
作者:
Yoon, Yeonsoo;Huang, Tingting;Tortelote, Giovane G.;Wakamiya, Maki;Hadjantonakis, Anna-Katerina;Behringer, Richard R.;Rivera-Perez, Jaime A.

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在发育的早期阶段建立头-尾轴是脊椎动物胚胎发生的一个基本方面。在小鼠中,实验胚胎学、遗传学和表达研究表明,内脏内胚层,一种胚外组织,在前后轴发育中起重要作用。在这里,我们表明,Wnt 3的情况下,在后内脏内胚层导致延迟形成的原始条纹和前,后内脏内胚层之间的相互作用限制了原始条纹的位置。然而,内脏内胚层中缺乏Wnt 3的胚胎在E9.5时表现正常。我们的研究结果提出了一个模型的轴向发展中,需要多个信号的前后轴向发展在哺乳动物。
The establishment of the head to tail axis at early stages of development is a fundamental aspect of vertebrate embryogenesis. In mice, experimental embryology, genetics and expression studies have suggested that the visceral endoderm, an extra-embryonic tissue, plays an important role in anteroposterior axial development. Here we show that absence of Wnt3 in the posterior visceral endoderm leads to delayed formation of the primitive streak and that interplay between anterior and posterior visceral endoderm restricts the position of the primitive streak. Embryos lacking Wnt3 in the visceral endoderm, however, appear normal by E9.5. Our results suggest a model for axial development in which multiple signals are required for anteroposterior axial development in mammals.
DOI: 10.1038/11932
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影响因子: 30.8
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