
Activated and expanded natural killer cells target osteosarcoma tumor initiating cells in an NKG2D–NKG2DL dependent manner
Keywords: Natural killer cells; Osteosarcoma tumor initiating cells; NKG2D–NKG2DL interactions; ImmunotherapyDNAM-1, DNA accessory molecule 1; EMEM, Eagle's minimum essential medium; Gem, gemcitabine; GFP, green-fluorescent protein; MEM, minimum essential medium; M