T-Cells Infiltrating a Tumor (IMAGE) Cold Spring Harbor Laboratory Caption Killer T-cells (stained red) have infiltrated a tumor. Two are attacking a cancer cell (stained green) that is in the middle of dividing (two cell nuclei, stained blue) in a tumor where the cancer cells do not have the CCR2 protein. Credit Xue-Yan He, Egeblad lab, CSHL Usage Restrictions Attribution required 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.