Tumor After Anti-angiogenic Therapy (IMAGE) University of Basel Caption Following anti-angiogenic therapy, tumors develop regions containing no blood vessels (green) and therefore no oxygen (red). The tumor cells are made visible by dyeing the nuclei blue. Credit University of Basel, Department of Biomedicine Usage Restrictions Give adequate credit. 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.