PT - JOURNAL ARTICLE AU - Kent Imaizumi AU - Koki Fujimori AU - Seiji Ishii AU - Asako Otomo AU - Yasushi Hosoi AU - Hiroaki Miyajima AU - Hitoshi Warita AU - Masashi Aoki AU - Shinji Hadano AU - Wado Akamatsu AU - Hideyuki Okano TI - Rostrocaudal Areal Patterning of Human PSC-Derived Cortical Neurons by FGF8 Signaling AID - 10.1523/ENEURO.0368-17.2018 DP - 2018 Mar 01 TA - eneuro PG - ENEURO.0368-17.2018 VI - 5 IP - 2 4099 - http://www.eneuro.org/content/5/2/ENEURO.0368-17.2018.short 4100 - http://www.eneuro.org/content/5/2/ENEURO.0368-17.2018.full SO - eNeuro2018 Mar 01; 5 AB - The cerebral cortex is subdivided into distinct areas that have particular functions. The rostrocaudal (R-C) gradient of fibroblast growth factor 8 (FGF8) signaling defines this areal identity during neural development. In this study, we recapitulated cortical R-C patterning in human pluripotent stem cell (PSC) cultures. Modulation of FGF8 signaling appropriately regulated the R-C markers, and the patterns of global gene expression resembled those of the corresponding areas of human fetal brains. Furthermore, we demonstrated the utility of this culture system in modeling the area-specific forebrain phenotypes [presumptive upper motor neuron (UMN) phenotypes] of amyotrophic lateral sclerosis (ALS). We anticipate that our culture system will contribute to studies of human neurodevelopment and neurological disease modeling.