Similar to the chemosensitization by FASN inhibitors when administered in combination with anti-cancer drugs,12,13 previous studies have demonstrated that FASN inhibition can sensitize cancer cells to radiation therapy in experimental models.14, 15, 16 However, there are currently no FASN inhibitors that are clinically approved for use in cancer therapy and the radiosensitizing ability of FASN inhibitors in clinical trials has not been fully evaluated. Here, FASN is linked to cancer.