Immune cell invasion (VIDEO) Institute of Science and Technology Austria This video is under embargo. Please login to access this video. Caption With state-of-the-art technology, scientists at IST Austria can study the process of cell invasion in living fruit fly embryos. (Macrophages in green; surrounding tissue cells in purple) Credit © Vera Belyaeva / IST Austria Usage Restrictions - License Original 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.