MARY HELEN BARCELLOS-HOFF
Mary Helen Barcellos-Hoff is a professor and vice chair of the Department of Radiation Oncology, University of California, San Francisco and is a cancer biologist whose research focuses on the tumor microenvironment, radiation biology, and systems biology. Barcellos-Hoff earned her undergraduate degree from the University of Chicago in biopsychology, a field of research in which human behavior is studied as the product of interactions between the brain, the body, and the environment. Her Ph.D. was in experimental pathology from the University of California at San Francisco where she still holds an appointment in their Anatomy Department. She came to Berkeley Lab in 1986 to do postdoctoral research in cell biology under Mina Bissell, the first scientist to link breast cancer to the “extracellular matrix” or ECM, a support network of proteins surrounding breast cells. Amongst her honors and awards.