原肠胚形成过程中细胞运动需要 Furry,并且与 NDR1 具有功能互作。
Furry is required for cell movements during gastrulation and functionally interacts with NDR1.
机构信息
Facultad de Ciencias Exactas y Naturales, Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE-UBA-CONICET), Universidad de Buenos Aires (UBA), C1428EGA, Buenos Aires, Argentina.
Facultad de Ciencias Exactas y Naturales. Departamento de Física, Instituto de Física de Buenos Aires (IFIBA-UBA-CONICET), Universidad de Buenos Aires (UBA), C1428EGA, Buenos Aires, Argentina.
出版信息
Sci Rep. 2021 Mar 23;11(1):6607. doi: 10.1038/s41598-021-86153-x.
Gastrulation is a key event in animal embryogenesis during which germ layer precursors are rearranged and the embryonic axes are established. Cell polarization is essential during gastrulation, driving asymmetric cell division, cell movements, and cell shape changes. The furry (fry) gene encodes an evolutionarily conserved protein with a wide variety of cellular functions, including cell polarization and morphogenesis in invertebrates. However, little is known about its function in vertebrate development. Here, we show that in Xenopus, Fry plays a role in morphogenetic processes during gastrulation, in addition to its previously described function in the regulation of dorsal mesoderm gene expression. Using morpholino knock-down, we demonstrate a distinct role for Fry in blastopore closure and dorsal axis elongation. Loss of Fry function drastically affects the movement and morphological polarization of cells during gastrulation and disrupts dorsal mesoderm convergent extension, responsible for head-to-tail elongation. Finally, we evaluate a functional interaction between Fry and NDR1 kinase, providing evidence of an evolutionarily conserved complex required for morphogenesis.
原肠作用是动物胚胎发生过程中的一个关键事件,在此期间,胚层前体被重新排列,胚胎轴被建立。细胞极化在原肠作用中至关重要,它驱动着不对称细胞分裂、细胞运动和细胞形状变化。Fry 基因编码一种进化上保守的蛋白质,具有广泛的细胞功能,包括无脊椎动物中的细胞极化和形态发生。然而,关于其在脊椎动物发育中的功能知之甚少。在这里,我们表明在非洲爪蟾中,Fry 除了其先前描述的在调节背侧中胚层基因表达中的作用外,还在原肠作用过程中的形态发生过程中发挥作用。使用形态发生抑制物敲低,我们证明了 Fry 在胚孔闭合和背轴伸长中的独特作用。Fry 功能的丧失极大地影响了原肠作用期间细胞的运动和形态极化,并破坏了负责从头至尾伸长的背侧中胚层会聚延伸。最后,我们评估了 Fry 和 NDR1 激酶之间的功能相互作用,提供了一个进化上保守的复合物对于形态发生是必需的证据。