La Jolla, CA -- Researchers at the Burnham Institute for Medical Research (“Burnham”) have provided the first evidence that gamma-secretase, an enzyme key to the progression of Alzheimer’s, acts as a tumor suppressor by altering the pathway of epidermal growth factor receptor (EGFR), a potential treatment target for cancer. Expedited to publication online by Proceedings of the National Academy of Sciences, these findings reveal a limitation of targeting gamma-secretase for treatment of Alzheimer’s and potentially other diseases.