Figure 3.
DNAM-1 is involved in immune surveillance against MCA-induced fibrosarcoma. (A) WT (n = 10) or DNAM-1–deficient (n = 10) mice were injected s.c. with 400 μg or 25 μg MCA on day 0. Tumor size in each mouse was measured once a week. Tumor incidence and survival data for 10 mice per group are shown. (B) When 25 μg MCA-induced fibrosarcomas in seven WT or nine DNAM-1–deficient mice reached a size of 1 cm in diameter, fibrosarcoma was resected from each mouse and subjected to quantitative RT-PCR for CD155 and CD112. The skins resected from four naive mice were also subjected to quantitative RT-PCR. The data are the mean of triplicates. The experiments were performed twice with similar results. One experiment is shown.