Model of regulatory T cell behaviour (VIDEO) University of Cambridge This video is under embargo. Please login to access this video. Caption Regulatory T cells can migrate from tissue to tissue via the blood. The cells take merely minutes to travel around the body, and then slow down to a crawl once they enter a tissue, spending on average three weeks inside the tissue before leaving. Credit Equinox Graphics Usage Restrictions With credit 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.