As a result, the final tumor sizes of nude mice injected with MIIP-overexpressing C4–2 and PC3 cells were much smaller than those injected with C4–2 and PC3 vector control cells (C4–2: 0.27 ± 0.09 vs 0.09 ± 0.05 g, *p<0.05; PC3: 0.63 ± 0.24 vs 0.23 ± 0.15, *p<0.05; Fig. 6b). The gene discussed is MIIP; the disease is neoplasm.