(E) QRT-PCR assay of SOX1 after 4 HDAC inhibitors (4i) treatment or remove one inhibitor from these 4 HDAC inhibitors (4i) in V1-PAKI cells on day 16 of dorsal neural differentiation, p=0.0053 (V1-PAKI), p=0.0240 (4i), p=0.0255 (4i-2833), p=0.0097 (4i-34051), p=0.0272 (4i-CAY). Data information: Data are presented as mean ±SEM from three independent experiments (n=3). *p<0.05, **p<0.01, ***p<0.001 versus Ctrl group ; #p<0.05, ##p<0.01, ###p<0.001 versus V1-PAKI group (one-way ANOVA). 