Dr. Besim Ogretmen (IMAGE) Medical University of South Carolina Caption Dr. Besim Ogretmen's team discovered that blocking certain ceramide molecules improves the anti-tumor function of aging T-cells. Credit MUSC/Marquel Coaxum 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.