Dendritic cell surfaces (IMAGE) Massachusetts Institute of Technology Caption :MIT researchers have identified a specialized subset of dendritic cells that help stimulate T cells to attack tumors. In this image, the blue represents a protein found on dendritic cell surfaces, and the purple stain reveals tumor proteins that the dendritic cell uses to “disguise” itself as a tumor cell. Cell nuclei are labeled in yellow. Credit Ellen Duong and Tim Fessenden Usage Restrictions Credit must be given to the creator. No derivatives or adaptations of the work are permitted. License CC BY-ND 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.