Aggressive Leukemia Hijack Normal Protein to Grow (image) University of Pennsylvania School of Medicine Share Print E-Mail Caption Knockdown of normal MLL gene in human leukemia cells reduces leukemic infiltration in mouse bone marrow (left), compared with heavy leukemic infiltration in marrow from leukemia cells with normal MLL gene (right). Arrows denote leukemic cells. Credit Peter Blessington, University of Pennsylvania School of Medicine 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.