Fgf8 dosage determines midfacial integration and polarity within the nasal and optic capsules.

Fgf8 dosage determines midfacial integration and polarity within the nasal and optic capsules.
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DOI:
10.1016/j.ydbio.2012.11.014
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发表时间:
2013-02-01
影响因子:
2.7
通讯作者:
Depew, Michael J.
Depew, Michael J.
中科院分区:
生物学3区
文献类型:
--
作者:
Griffin, John N.;Compagnucci, Claudia;Hu, Diane;Fish, Jennifer;Klein, Ophir;Marcucio, Ralph;Depew, Michael J.

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颅面发育需要在胚胎头上皮和间质之间有一个精确的时间和位置的串扰。这种串音是将图案过程和信息精确翻译成不同的、适当的骨骼形态的基础。分子和细胞的对话包括通过分泌的信号分子(包括Fgf8)及其解释的效应物进行通信。在此,我们利用Fgf8在小鼠中的遗传衰减,并进行了功能获得小鼠-鸡嵌合实验,以证明额鼻和视神经骨骼的重要特征状态依赖于Fgf8。值得注意的是,我们发现鼻胶囊的正常取向和极性及其发育的原基依赖于Fgf8。我们进一步证明了Fgf8是面中部整合所必需的,并为Fgf8在视膜发育中的作用提供了证据。综上所述,我们的数据强调Fgf8信号在颅面发育过程中可能是进化选择压力的目标。
Craniofacial development requires an exquisitely timed and positioned cross-talk between the embryonic cephalic epithelia and mesenchyme. This cross-talk underlies the precise translation of patterning processes and information into distinct, appropriate skeletal morphologies. The molecular and cellular dialogue includes communication via secreted signaling molecules, including Fgf8, and effectors of their interpretation. Herein, we use genetic attenuation of Fgf8 in mice and perform gain-of-function mouse-chick chimeric experiments to demonstrate that significant character states of the frontonasal and optic skeletons are dependent on Fgf8. Notably, we show that the normal orientation and polarity of the nasal capsules and their developing primordia are dependent on Fgf8. We further demonstrate that Fgf8 is required for midfacial integration, and provide evidence for a role for Fgf8 in optic capsular development. Taken together, our data highlight Fgf8 signaling in craniofacial development as a plausible target for evolutionary selective pressures.
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影响因子: 2.2
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