Michael Lieber, M.D., Ph.D. is professor of pathology, biochemistry and molecular biology, molecular microbiology and biological sciences. He is the program co-leader of the Molecular Genetics Program. Dr. Lieber is currently conducting four research projects in chromosomal translocation development in human cells. His grant-funded projects include: • A National Institute of General Medical Sciences (NIGMS)-funded study of the mechanism of V(D)J recombination, and mistakes in this pathway result in many lymphoid translocations, as in T cell leukemias and lymphomas. • A NIGMS-funded study of the mechanism of class switch recombination, and mistakes in this pathway result in lymphoid translocations such as Burkitt's lymphoma. • A National Cancer Institute (NCI) Merit grant-funded study into additional causes of translocation in human malignancies. • An NCI grant to study how broken DNA ends are rejoined in a pathway called nonhomologous DNA end joining (NHEJ).