Peter Sorger, Ph.D., is the Otto Krayer Professor of Systems Biology and head of the Program in Therapeutic Science (HiTS) at Harvard Medical School. He also serves as director of its Laboratory of Systems Pharmacology. Dr. Sorger’s research focuses on the signal transduction networks controlling cell proliferation and death, dysregulation of these networks in cancer and inflammatory diseases and mechanisms of action of therapeutic drugs that target signaling proteins. His group uses a combination of mathematical and experimental (“systems biology”) approaches to construct and test computational models of drug response and resistance. Sorger was a co-founder of the MIT systems biology program and Glencoe Software and one of the original academic founders of Merrimack.