Invasive Tumor Cells (2 of 2) (video) Rockefeller University Press Share Print E-Mail Loading video... Caption In the absence of Omi, Ras-transformed tumor cells form invasive lamellipodial protrusions. Credit Yamauchi et al., 2014 Usage Restrictions Reporters may freely use these materials in news coverage, with the appropriate credit information. Share Print E-Mail 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.