A cancer cell and two immune cells STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY/Alamy
Cancer is a disease, or group of diseases, in which some cells proliferate uncontrollably and can spread to other parts of the body. But that description doesn’t reflect how our conception of cancer has changed, says at Johns Hopkins University in Maryland. “People used to view cancer as sort of bad luck: the cancer would just change over time and we didn’t really understand why, or how, or what was driving those changes.”
In the past few years, however, Pienta and others have come to see cancers…