Figure 1. Dopaminergic phenotype of SH-SY5Y neuroblastoma cells. Contrast phase microscopy of differentiated with ATRA/TPA and not differentiated SH-SY5Y cells and histogram showing dopamine production. Western blotting for TH. Immunofluorescence of β-tubulin III and TH. Western blotting and immunofluorescence for GAP43. Results are mean ± SE of 3 different experiments (n=3). *p< 0,05, **p< 0,005 vs. ATRA/TPA.