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There has been little recent progress in treating Ewing sarcoma, a pediatric tumor involving bone. Dr. Stegmaier and colleagues have used a technology called CRISPR to identify urgently needed, new therapeutic targets for this disease. They prioritized a class of targets which are expressed in immature but not mature tissues. These proteins are often abnormally re-expressed in cancers such as Ewing sarcoma. Thus, drugs targeting these proteins would be expected to have minimal toxicity. The Stegmaier lab identified the target IGF2BP1 as a top selective gene dependency in Ewing sarcoma; deletion of IGF2BP1 was more deleterious to Ewing sarcoma than all other cancer types screened. Importantly, IGF2BP1 is not expressed in most normal human cells. Dr. Stegmaier will validate IGF2BP1 as a therapeutic target in Ewing and will determine the mechanisms by which Ewing sarcoma cells rely on IGF2BP1 for growth. With IGF2BP1 chemical inhibitors in development, this project has exciting translational potential for patients with Ewing sarcoma.

This grant is funded by and named for The Ben Brandenburg Fund for Ewing Sarcoma Research. Ben passed away at the age of 15. He is remembered for his quick wit, indomitable spirit and bravery. This fund is his lasting legacy and ensures that research is funded so fewer children will have to suffer from Ewing Sarcoma.