We have previously shown that tumor cells expressing mHsp70 can be recognized and killed using NK cells that have been activated by ex vivo incubation with a 14-mer Hsp70-derived peptide (TKDNNLLGRFELSG, ‘TKD’) and low-dose IL-2 (100 U/ml for 3-5 days) in a wide range of different cancer settings (31). The gene discussed is IL2; the disease is cancer.