Illustration (IMAGE) University of Wisconsin-Madison Caption This is an illustration of the CTC capture process where cancer cells (in orange) and white blood cells (in white) both begin rolling along sticky proteins mimicking blood vessel walls. Only cancer cells are held firmly in place by CTC-specific antibodies, while normal white blood cells are allowed to keep moving. Credit Michael Poellmann 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.