Transcription Factors Sp8 and Sp9 Regulate Medial Ganglionic Eminence-Derived Cortical Interneuron Migration

Transcription Factors Sp8 and Sp9 Regulate Medial Ganglionic Eminence-Derived Cortical Interneuron Migration
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转录因子 Sp8 和 Sp9 调节内侧神经节隆起衍生的皮质中间神经元迁移

DOI:
10.3389/fnmol.2019.00075
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发表时间:
2019-04
影响因子:
4.8
通讯作者:
You Yan
You Yan
中科院分区:
医学2区
文献类型:
--
作者:
Tao Guangxu;Li Zhenmeiyu;Wen Yan;Song Xiaolei;Wei Song;Du Heng;Yang Zhengang;Xu Zhejun;You Yan

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皮层中间神经元来自于腭下区,通过长切向迁移到达发育中的皮层。成熟的皮质中间神经元的特点是显着的形态,分子和功能的多样性。钙结合蛋白小清蛋白(PV)和神经肽生长抑素(SST)识别大多数内侧神经节隆起(MGE)衍生的皮质中间神经元。以前,我们证明了Sp 9在调节MGE衍生的皮层中间神经元发育中起着curial转录作用。在这里,我们表明,SP 8蛋白每周表达的MGE套区的野生型小鼠,但上调Sp 9无效突变体。PV+皮质中间神经元严重丢失的Sp 8/Sp 9双条件敲除由于缺陷的切线迁移相比,Sp 9单突变体,这表明Sp 8/9协调调节PV+皮质中间神经元的发展。我们提供的证据表明,Sp 8/Sp 9活性是正常的MGE衍生的皮质中间神经元迁移所必需的,至少部分是通过调节EphA 3,Ppp 2 r2 c和Rasgef 1b的表达。
Cortical interneurons are derived from the subpallium and reach the developing cortex through long tangential migration. Mature cortical interneurons are characterized by remarkable morphological, molecular, and functional diversity. The calcium-binding protein parvalbumin (PV) and neuropeptide somatostatin (SST) identify most medial ganglionic eminence (MGE)-derived cortical interneurons. Previously, we demonstrated that Sp9 plays a curial transcriptional role in regulating MGE-derived cortical interneuron development. Here, we show that SP8 protein is weekly expressed in the MGE mantle zone of wild type mice but upregulated in Sp9 null mutants. PV+ cortical interneurons were severely lost in Sp8/Sp9 double conditional knockouts due to defects in tangential migration compared with Sp9 single mutants, suggesting that Sp8/9 coordinately regulate PV+ cortical interneuron development. We provide evidence that Sp8/Sp9 activity is required for normal MGE-derived cortical interneuron migration, at least in part, through regulating the expression of EphA3, Ppp2r2c, and Rasgef1b.
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影响因子: 11.1
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