Ira Mellman is chair of the Yale School of Medicine's department of Cellular Biology and an affiliate investigator at the Ludwig Institute for Cancer Research. He says that while "the idea that one can manipulate a patient's immune system to help combat cancer" is promising - the subject of his piece on page 47 - "it's simply that we don't know enough," he says. As a "lab guy," Mellman lobbies in Washington, DC, to bring industry, academia, bench research, and clinical research together. "Your work isn't really over until you've tested if your ideas are correct," he says.













