Engineered T cells Combat Cancer in Mice (IMAGE) Virginia Commonwealth University Caption Control mice (left panel) with prostate cancer show large areas of metastasis in the lungs (blue). When a subset of animals were treated with unmodified T cells (middle panel), the secondary tumors were smaller than in untreated mice. And when a separate group of mice received T cells engineered to produce MDA-7/IL-24 (right panel), metastases shrunk even more, in some cases down to nothing. Credit Shawn Wang, Ph.D. Usage Restrictions news media use is allowed, with proper credit 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.