WT1 and acute myeloid leukemia: The predictive value of isolated high WT1 expression in AML has been confirmed in several follow‐up long‐term studies (Bergmann et al, 1997; Trka et al, 2002), and it was in fact extended to therapy subgroups, including haematopoietic stem cell transplantation (Jacobsohn et al, 2009), though it was not a consistent finding in this setting (Ostergaard et al, 2004).