XIAP and acute myeloid leukemia: As for AML, multiple reports have regarded XIAP as a unfavourable gene through a variety of signal pathways, including caspase pathway7, 8 and NF‐kB pathway,9 and inhibition of XIAP can sensitize AML cells to tumour necrosis factor‐related apoptosis‐inducing ligand (TRAIL).10, 11