Figure 6.
B16/IL‐2.4 induces a rapid natural killer (NK) cell infiltrate. Mice were injected with 1 × 106 B16 or B16/IL‐2.4 cells. The tumours were processed into single cell suspensions and analysed by flow cytometry at the indicated days. The frequency of T cells or NK cells was determined and normalized to the weight of the tumour to correct for differences in tumour size (n = 4 tumours examined in each condition). Squares indicate NK cells, circles indicate CD8 T cells. Dotted lines indicate cells from B16 tumours, solid lines those from B16/IL‐2.4 tumours.