Invasive Tumor Cell (IMAGE) Rockefeller University Press Caption A new study in the Journal of Cell Biology reveals how a lipid-converting enzyme helps cancer cells gain traction and mobilize. In this image, Rab-coupling protein (green) gathers at the tip of the pseudopod of an invasive tumor cell. Credit Elena Rainero Usage Restrictions Reporters may freely use these materials in news coverage, with the appropriate credit information. License Licensed content 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.