Moving Cells with Light (audio) Washington University School of Medicine Loading audio... Caption Many important functions in the body, from neural development to insulin secretion, immune cell function and heart rate are controlled by key receptors various cells around the body. Now scientists at Washington University School of Medicine in St. Louis have shown that they can coax some of those cells to move toward a beam of light, and they say the feat may be the first step toward using light to control things like insulin secretion or heart rate. Jim Dryden reports... Credit Washington University BioMed Radio Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.