To determine the potential cytokines responsible for GSTO1 induction in bladder cancer, HT1376 was treated with individual cytokines, including GRO‐α, GM‐CSF, M‐CSF, MIP‐1β, IL‐1α, IL‐1β, IL‐2, IL‐6, IL‐18, SDF‐1α, TNF‐α, and VEGF‐A. The gene discussed is IL18; the disease is urinary bladder cancer.