The ability to program naïve cells or to reprogram differentiated cells into particular fates will open the door to the discovery of novel therapeutics for diseases such as diabetes. The goal of my lab is to understand the fundamental principles that govern the identity of a cell, and to use these principles to manipulate cell fates for regenerative medicine. In pursuit of this goal, we employ a variety of approaches including cellular programming and reprogramming through gene transduction, directed differentiation of embryonic stem (ES) cells, chemical screening, mouse genetics, adult tissue injury and regeneration, and tissue/cell transplantation.