New Type of Cell Movement (video) University of Pennsylvania Loading video... Caption Penn and NIH researchers have demonstrated a never-before characterized type of cell movement. In this video, a cell's vimentin cytoskeleton (green) pulls the nucleus (red) forward to generate a high-pressure protrusion, called a lobopodia, inside a cell migrating in a physiological 3D extracellular matrix. This time-lapse movie is 30 minutes of time compressed into 4 seconds (450x speed). Credit NIH Usage Restrictions In context of reproting 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.