MYB and acute lymphoblastic leukemia: Although the duplication for genomic region of MYB-SE has been reported in some of the T-ALL samples (Lahortiga et al, 2007; O’Neil et al, 2007), the MYB-SE region in ALL is not functional for MYB expression, as the enhancers in ALL for MYB are located 116 kb away from the MYB-SE (Li et al, 2021; Stadhouders et al, 2014).