Tumor fomation in mice brain (IMAGE) Hokkaido University Caption The cancer stem cells cultured on the DN gel formed a tumor when injected into mice brain. (Jun Suzuka et al., Nature Biomedical Engineering, March 29, 2021) Credit Jun Suzuka et al., Nature Biomedical Engineering, March 29, 2021 Usage Restrictions This image is copyrighted and can be used for reporting this research without obtaining permission if credited as instructed. 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.