A useful transgenic mouse line for studying the development of spinal nociceptive circuits

A useful transgenic mouse line for studying the development of spinal nociceptive circuits
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用于研究脊髓伤害性回路发育的有用转基因小鼠系

DOI:
10.1016/j.neulet.2008.11.054
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发表时间:
2009-01
影响因子:
2.5
通讯作者:
Hu, Chuanyin
Hu, Chuanyin
中科院分区:
医学4区
文献类型:
--
作者:
Zhang, Ying;Liu, Junhua;Li, Yiping;Zhao, Chunjie;Xie, Wei;Hu, Chuanyin

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伤害性外周刺激由伤害性DRG感觉神经元检测;该信息被传递到脊髓的浅层背角,中继到大脑,然后被感知为疼痛。先前的研究表明,Wnt信号在伤害性感受回路的发育过程中起着至关重要的作用。我们已经报道了一种转基因小鼠系,其中Tau-LacZ是由一个Wnt受体Frizzled 10的启动子驱动的。在这里,我们进一步描述了这种转基因小鼠系,并提出我们的研究结果,即伤害性回路特异性标记的Tau-LacZ转基因在发育中的脊髓和DRG。Tau-LacZ特异性标记了穿过底板并将伤害性信息传递到大脑的连合轴突。因此,这一小鼠系将提供一个强大的遗传工具,研究脊髓伤害性回路的发展和连合轴突的指导机制。
Noxious peripheral stimuli are detected by nociceptive DRG sensory neurons; this information is transmitted to the superficial dorsal horn of the spinal cord, relayed to the brain, then perceived as pain. Previous studies have shown that Wnt signaling plays a crucial role during the development of nociceptive circuits. We have reported a transgenic mouse line in which Tau-LacZ is driven by the promoter of one Wnt receptor, Frizzled10. Here, we further characterize this transgenic mouse line and present our findings that nociceptive circuits were specifically labeled by the Tau-LacZ transgene in developing spinal cord and DRG. Tau-LacZ specifically labeled commissural axons crossing the floor plate and transmitting nociceptive information to the brain. Thus this mouse line will provide a powerful genetic tool for studying the development of spinal nociceptive circuits and the mechanisms of commissural axon guidance.
DOI: 10.1038/nn1962
发表时间: 2007-10-01
影响因子: 25
作者:
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