Enabled (Xena) regulates neural plate morphogenesis, apical constriction, and cellular adhesion required for neural tube closure in Xenopus.

Enabled (Xena) regulates neural plate morphogenesis, apical constriction, and cellular adhesion required for neural tube closure in Xenopus.
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Enabled (Xena) 调节爪蟾神经管闭合所需的神经板形态发生、顶端收缩和细胞粘附。

DOI:
10.1016/j.ydbio.2007.12.010
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发表时间:
2008
影响因子:
2.7
通讯作者:
Miller,JeffreyR
Miller,JeffreyR
中科院分区:
生物学3区
文献类型:
--
作者:
Roffers-Agarwal,Julaine;Xanthos,JenniferB;Kragtorp,KatherineA;Miller,JeffreyR

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细胞粘附和细胞骨架动力学的调节对神经发育至关重要,尽管目前尚不清楚这两个过程如何协调。Ena/VASP家族蛋白的成员定位于细胞粘附和肌动蛋白动力学位点,在小鼠中缺乏两个家族成员,Mena和VASP,导致神经管关闭失败。然而,Ena/VASP蛋白调控这一过程的确切机制尚不清楚。在本报告中,我们发现非洲爪蟾(Xena)在神经发育过程中定位于神经上皮细胞的顶端粘附连接,并且Xena基因敲低会破坏神经管闭合所必需的细胞行为。在Xena基因敲低的胚胎中,神经板形状的改变以及神经板内的顶端收缩受到干扰。此外,我们证明了Xena对细胞-细胞粘附至关重要。这些结果表明,Xena在非洲爪蟾神经发育过程中协调细胞骨架动力学和细胞粘附调节中起着不可或缺的作用。
Regulation of cellular adhesion and cytoskeletal dynamics is essential for neurulation, though it remains unclear how these two processes are coordinated. Members of the Ena/VASP family of proteins are localized to sites of cellular adhesion and actin dynamics and lack of two family members, Mena and VASP, in mice results in failure of neural tube closure. The precise mechanism by which Ena/VASP proteins regulate this process, however, is not understood. In this report, we show that Xenopus Ena (Xena) is localized to apical adhesive junctions of neuroepithelial cells during neurulation and that Xena knockdown disrupts cell behaviors integral to neural tube closure. Changes in the shape of the neural plate as well as apical constriction within the neural plate are perturbed in Xena knockdown embryos. Additionally, we demonstrate that Xena is essential for cell–cell adhesion. These results demonstrate that Xena plays an integral role in coordinating the regulation of cytoskeletal dynamics and cellular adhesion during neurulation in Xenopus.
神经上皮细胞重排和分裂在禽神经板形成中的作用。
DOI: 10.1242/dev.106.3.427
发表时间: 1989
期刊: Development (Cambridge, England)
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作者:
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发表时间: 2000
期刊: Methods in molecular biology (Clifton, N.J.)
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