ATXN3 and neuroblastoma: To explore the potential of JM17, RTA-408, and DMF for treating SCA3, we used wild-type SK-N-SH neuroblastoma cells (WT) and SK-N-SH cells containing either 26 or 78 glutamines in the ataxin-3 gene, termed MJD26 and MJD78 cells hereafter.