Cancer cells (IMAGE) Salk Institute Caption An ARID1A gene-deficient human endometrial tumor being infiltrated by CD8+ T cells (yellow). All cell nuclei are colored blue, including tumor cells and CD8+ T cells. Credit Salk Institute Usage Restrictions With credit and related coverage 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.