Cerebellar Stem Cells (IMAGE) Sanford Burnham Prebys Caption Cerebellar stem cells engineered to express Myc and mutant p53 (shown here) give rise to aggressive tumors that resemble a particularly malignant form of human medulloblastoma, providing a new model that will help scientists develop more effective therapies for this disease. Credit Sanford-Burnham Medical Research Institute Usage Restrictions Free to use in conjunction with this story only. Contact hbuschman@sanfordburnham.org with questions. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.