[PROBLEMS] To provide a technique which enables an effective antibody therapy for cancer which targets for FGFR1 without the need of using any effective antibody having high specificity and a potent cell-killing activity. [MEANS FOR SOLVING PROBLEMS] Disclosed are: a therapeutic agent for cancer, which comprises an enhancer of the expression of a fibroblast growth factor receptor-1 and an anti-fibroblast growth factor receptor-1 antibody； and a method for the treatment of cancer using the therapeutic agent.
