...hibits IGF-1R signaling. An oral IGF-1R inhibitor of cyclolignan chemistry is presently studied in patients with advanced cancer. Recently, they found that IGF-1R is SUMOylated, translocated to the nucleus, where it affects transcription. This is a novel and original function for IGF-1R and one of the goals of this proposal is to further study whether it is limited to tumor cells. In such case, th ...