Frizzled10 mediates WNT1 and WNT3A signaling in the dorsal spinal cord of the developing chick embryo.

Frizzled10 mediates WNT1 and WNT3A signaling in the dorsal spinal cord of the developing chick embryo.
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DOI:
10.1002/dvdy.24123
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发表时间:
2014-06
期刊:
Developmental dynamics : an official publication of the American Association of Anatomists
影响因子:
--
通讯作者:
Burrus LW
Burrus LW
中科院分区:
其他
文献类型:
--
作者:
Galli LM;Munji RN;Chapman SC;Easton A;Li L;Onguka O;Ramahi JS;Suriben R;Szabo LA;Teng C;Tran B;Hannoush RN;Burrus LW

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WNT 1和WNT 3A在发育中的脊髓中驱动β-连环蛋白依赖性Wnt信号传导的背侧至腹侧梯度。然而,介导下游功能的受体的身份仍然知之甚少。在本文中,我们发现FZD 10和WNT 1/WNT 3A的时空表达模式高度相关。我们进一步表明,在LRP 6的存在下,FZD 10促进WNT 1和WNT 3A信号转导使用8xSuperTopFlash报告基因测定。与FZD 10的功能作用一致,我们证明FZD 10是脊髓增殖所需的。最后,通过使用原位邻近连接分析,我们观察到FZD 10与WNT 1和WNT 3A蛋白之间的相互作用。总之,我们的研究结果确定FZD 10作为WNT 1和WNT 3A在发育中的鸡脊髓的受体。
WNT1 and WNT3A drive a dorsal to ventral gradient of β-catenin dependent Wnt signaling in the developing spinal cord. However, the identity of the receptors mediating downstream functions remains poorly understood. In this paper, we show that the spatiotemporal expression patterns of FZD10 and WNT1/WNT3A are highly correlated. We further show that in the presence of LRP6, FZD10 promotes WNT1 and WNT3A signaling using an 8xSuperTopFlash reporter assay. Consistent with a functional role for FZD10, we demonstrate that FZD10 is required for proliferation in the spinal cord. Finally, by using an in situ proximity ligation assay, we observe an interaction between FZD10 and WNT1 and WNT3A proteins. Together, our results identify FZD10 as a receptor for WNT1 and WNT3A in the developing chick spinal cord.
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