Conservation and diversity of Foxp2 expression in muroid rodents: functional implications.

Conservation and diversity of Foxp2 expression in muroid rodents: functional implications.
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FOXP2表达在Muroid啮齿动物中的保护和多样性:功能含义。

DOI:
10.1002/cne.21881
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发表时间:
2009-01-01
期刊:
The Journal of comparative neurology
影响因子:
--
通讯作者:
Phelps SM
Phelps SM
中科院分区:
其他
文献类型:
--
作者:
Campbell P;Reep RL;Stoll ML;Ophir AG;Phelps SM

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FOXP2基因是第一个与人类语言障碍有因果关系的基因,它与鸣禽的鸣叫获得、产生和感知、原始人的言语和语言进化以及蝙蝠的回声定位进化有关。尽管Foxp2与脊椎动物的声音交流有明显的相关性,但目前还缺乏对哺乳动物神经表达模式的全面描述。在这里,我们使用免疫细胞化学系统地描述了Foxp2蛋白在四种鼠类啮齿类动物中的神经分布:Scotinomys teguina和S. xerampelinus(“唱歌的老鼠”),鹿鼠,Peromyscus maniculatus和实验室小鼠,Mus musculus。虽然Foxp2的表达模式在整个大脑区域普遍高度保守,但我们发现Foxp2分布存在微妙但一致的种间差异,尤其是在内侧杏仁核和伏隔核以及整个大脑的V层皮层。在整个大脑中,Foxp2在涉及精细运动输出调节的区域(纹状体、中脑边缘多巴胺回路、左小脑系统)以及多模态感觉加工和感觉运动整合(丘脑、皮层)中高度富集。我们提出了成人大脑中foxp2调节通路的广义模型,包括但不限于精细运动产生和听觉感知。
FOXP2, the first gene causally linked to a human language disorder, is implicated in song acquisition, production and perception in oscine songbirds, the evolution of speech and language in hominids and the evolution of echolocation in bats. Despite the evident relevance of Foxp2 to vertebrate acoustic communication, a comprehensive description of neural expression patterns is currently lacking in mammals. Here we use immunocytochemistry to systematically describe the neural distribution of Foxp2 protein in four species of muroid rodents: Scotinomys teguina and S. xerampelinus (‘singing mice’), the deer mouse, Peromyscus maniculatus, and the lab mouse, Mus musculus. While expression patterns were generally highly conserved across brain regions, we identified subtle but consistent interspecific differences in Foxp2 distribution, most notably in the medial amygdala and nucleus accumbens, and in layer V cortex throughout the brain. Throughout the brain, Foxp2 was highly enriched in areas involved in modulation of fine motor output (striatum, mesolimbic dopamine circuit, olivocerebellar system), and in multimodal sensory processing and sensorimotor integration (thalamus, cortex). We propose a generalized model for Foxp2-modulated pathways in the adult brain including, but not limited to, fine motor production and auditory perception.
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发表时间: 2005-01-01
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影响因子: 2.6
作者:
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影响因子: 25
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影响因子: 2
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