ELP1 and neuroblastoma: To investigate the correlation between the neurite morphological features with Tau expression in Elp1 KD FD neuroblastoma cells, we measured Tau expression by immuno-fluorescence confocal microscopy analysis of Elp1 KD and control cells, using Tau antibodies before and after differentiation with RA and BDNF, as shown in representative images in Figure 2 A-D.