Catherine Wu, Dana-Farber Cancer Institute (image) Dana-Farber Cancer Institute Share Print E-Mail Caption Catherine Wu, M.D., and colleagues have published a study that shows how gene mutations shift and evolve over time in chronic lymphocytic leukemia (CLL). This evolution, they report, holds the key to understanding why CLL often recurs after treatment and helps explain why patients with a seemingly similar disease often don't derive the same benefit from therapy and why therapy itself may speed the recurrence of the disease. Credit Sam Ogden Usage Restrictions None Share Print E-Mail 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.