While immunodeficient NSG mice implanted with si‐ALDH2‐transfected CT26 only exhibited a modest reduction in tumor volume (p < 0.05) compared with control CT26 cells (Figure 2Q), the immunocompetent mice (wild‐type) implanted with si‐ALDH2‐transfected CT26 cells displayed a significantly slower tumor growth (p < 0.01) than control CT26 (Figure 2R). The gene discussed is ALDH2; the disease is neoplasm.