Scientists, intensly focused on their own areas of research, don't usually stray out of their own lanes. So, Dr. Rohit Pappu, of Washington University in St. Louis, whose field is cellular and molecular biophysics and bioengineering, was surprised when asked to review a scientific publication about improving heart transplants. But when he began to read the article, he saw that a team of doctors at the Mayo Clinic, led by surgeon Paul Tang, had drawn on the basic research of his lab and others to save lives. Dr Pappu and Dr. Tang join us to tell this heartwarming tale about how studying little molecular communities within cells can lead to advances in medicine.  Veteran broadcast journalists Judy Muller and George Lewis are our guides for this podcast.