The other MYCN-amplified lines, SK-N-DZ and N91, had IC50 values of 806 nM and 234 nM, respectively, while the IC50 values of the non-MYCN amplified neuroblastoma cells SK-N-AS and SK-N-SH were 73 μM and 378 nM, respectively. The gene discussed is MYCN; the disease is neuroblastoma.