MAPT and neuroblastoma: We observed that while Elp1 mRNA transcription is significantly reduced in Elp1 KD neuroblastoma cells (Figure 4A, left), the MAPT mRNA expression level is similar in both Elp1 KD neuroblastoma cells and control cells supporting the view that Tau expression in the FD model is probably regulated at the protein (Figure 4A, right).