Kinase Surveillance (video) Stanford School of Engineering Loading video... Caption The circle inside each cell is its nucleus. As this video begins the circles are bright, which reveals the presence of inactive kinase protein decoys. After the Stanford bioengineers stimulated the cells to activate the kinases, the nuclear circles darkened again. Kinase proteins regulate health and help cause disease. So creating a way to track these light and dark areas allows researchers to see whether a kinase is active or inactive when a cell is healthy or diseased. This new technique could speed drug discovery. Credit Sergi Regot, Covert Lab. Usage Restrictions with attribution 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.