(IMAGE) Université de Genève Caption Killer-T cells (green) attack lymphatic vessels (red) in tumours and induce their death (cell death marker in white). Credit UNIGE - Robert Pick / Stéphanie Hugues Usage Restrictions none License Original 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.