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. The group also develops open-source software for constructing and analyzing such computational models. Recent research extends this systems pharmacology approach to analysis of clinical samples and interpretation of clinical trial data. Sorger co-leads the Harvard Tissue Atlas Project (https://www.tissue-atlas.org/) which developes and applies high-plex profiling methods for analyzing tissues and tumors.