With regard to IFN-γ production by γδ T cells (Figure 5B), we observed an enhanced IFN-γ production, i.e. 15–20% intracellular IFN-γ expression, upon stimulation with IL–15 DCs in a leukemic environment in AML patients that were brought into complete remission after induction/consolidation chemotherapy (UPN1 and UPN2). Here, IL15 is linked to acute myeloid leukemia.