MCF-7 Cells (IMAGE) Georgia Institute of Technology Caption Pictured are MCF-7 human breast cancer cells, stably transformed with SNAIL (right) or an empty vector control (left). Cells expressing SNAIL show an increased mesenchymal phenotype and malignant characteristics. The control cells display a cobblestone morphology, whereas cells overexpressing SNAIL are more elongated. Credit MgGrail, et al., FASEB 2014. Usage Restrictions None 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.