illustration (IMAGE) UT Southwestern Medical Center Caption This artist's rendering shows a synthetic polymer (purple) that activates STING proteins (yellow and green motifs) for cancer immunotherapy. Credit Shenyang Zhiyan Science and Technology Co. Ltd. Usage Restrictions None 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.