The data showed that ZFX silencing significantly decreased the expression of DIS3L, SMO, and HOXB5 in both CML CD34+ cells (n = 3) and K562 cells (Additional file 1: Fig. S6), which supported the validity of the microarray data in the present study. This evidence concerns the gene DIS3L and chronic myelogenous leukemia, BCR-ABL1 positive.