IL15 and neoplasm: In BT474 HTM, the tumor volume in tumor-bearing animals shrank from 3416 mm3 (+/- 1401, n=12) in control mice to 2800 mm3 (+/- 932; n=5) in trastuzumab-treated animals down to 192 mm3 (+/- 186; n=4) in IL-15/trastuzumab-treated mice (Figure 2E).