Sana Karam, University of Colorado (IMAGE) University of Colorado Anschutz Medical Campus Caption Sana Karam, MD, PhD and University of Colorado Cancer Center colleagues show that TIM3 and Tregs may help cancers resist immunotherapy. Credit University of Colorado Cancer Center 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.