In contrast, a clear reduction in tumor cells was observed after 4 to 12 hours when they were co-incubated with TKD/IL-2 activated NK cells (Figure 5B), after 24 hours when they were co-incubated with anti-Hsp70 CAR T cells (Figure 5D), and after 36 hours nearly no viable tumor cell was visible. Here, IL2 is linked to neoplasm.