Fig. 1.
VPA upregulates p75NTR and sortilin expression in human neuroblastoma cells. SH-SY5Y and LAN-1 cells were treated for 24 h with either vehicle or 1 mM VPA and the expression of p75NTR (a and d) and sortilin (b and e) was analysed by Western blot and normalised to actin. Values are the mean ± SD of five (a and d) and four (b and e) independent experiments. c and f quantitative real-time RT-PCR analysis of p75NTR and sortilin mRNA levels in SH-SY5Y and LAN-1 cells, treated for 24 h with either vehicle or 1 mM VPA. Values are the mean ± SD of four independent determinations. *p < 0.05, **p < 0.01 vs. control (vehicle-treated cells)