T Cell and Brain Cell (image) University of Michigan Health System Caption This illustration shows what the researchers found -- that a killer T cell (yellow) in the brain can target an infected or tumor cell (marked with A) and surrounding cells by releasing cytokines (dots) both within the gasket-like immunological synapse between the cells, and into the surrounding area via "leaks." These findings may help advance research on infections, tumors and autoimmune disease. Credit Lowenstein/Castro lab Usage Restrictions None 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.