Immune Cells Attacking Tumor Cells (IMAGE) Ecole Polytechnique Fédérale de Lausanne Caption A microscope photograph showing immune cells (green) attacking tumor cells (red). Credit Michele De Palma/EPFL Usage Restrictions For media, educational and non-commercial purposes only. Please mention 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.