CLL Cells Expressing CD49d (IMAGE) Rockefeller University Press Caption The adhesive protein CD49d (red) is present on the surface of these adherent chronic lymphocytic leukemia cells. Credit Tissino et al., 2018 Usage Restrictions Reporters may freely use these materials in news coverage with the appropriate credit information. 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.