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

Autor: Guangxu Tao, Zhenmeiyu Li, Yan Wen, Xiaolei Song, Song Wei, Heng Du, Zhengang Yang, Zhejun Xu, Yan You
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Frontiers in Molecular Neuroscience, Vol 12 (2019)
Druh dokumentu: article
ISSN: 1662-5099
DOI: 10.3389/fnmol.2019.00075
Popis: 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.
Databáze: Directory of Open Access Journals