IL15 and neoplasm: To improve the tumor homing and survival of AII cells we, in parallel, 1) transplanted MDA-MB-231 tumor pieces into the mammary fat pad (MFP) and injected AII cells intravenously in NOG mice (control), 2) co-transplanted MDA-MB-231 tumor pieces with AII cells directly into the MFP (to enhance antigen-specific stimulation), or 3) transplanted MDA-MB-231 tumor pieces into the MFP and injected AII cells intravenously in NOG mice, which produce human IL15 (hIL15 NOG) to enhance common gamma chain support (Fig. 2a).