(A) QRT-PCR assay of PAX6, SOX1, NKX2-1, NKX2-2, TBR1 and TBR2 during dorsal (up) and ventral (down) neural differentiation. (B) QRT-PCR assay of SOX1-OT V1 during dorsal (up) and ventral (down) neural differentiation Data information: Data are presented as mean ±SEM from three independent experiments (n=3). *p<0.05, **p<0.01, ***p<0.001 (unpaired two-tailed Student's t-test). 