We detected comparatively higher RPL23 mRNA expression in the SKM-1 [an acute myeloid leukaemia cell line established in the leukaemic phase during the progression from MDS to AML (MDS/AML)] and K562 [human chronic myelogenous leukaemia (CML) cell line] cell lines than in other leukaemic cell lines, e.g., HEL (human erythroleukaemia cell line), HL60 (human acute promyelocytic leukaemia cell line) and NB4 (human acute promyelocytic leukaemia cell line) (Supplementary Fig. S1a). The gene discussed is RPL23; the disease is acute myeloid leukemia.