Colon cancer tissue (IMAGE) Nagoya University Caption Representative images of human colon cancer tissue showing the localization of gremlin 1-positive (left) and meflin-positive (right) cancer-associated fibroblasts (CAFs) in the stroma. Brown denotes CAFs that are positive for gremlin 1 or meflin T., tumor cells. Credit Atsushi Enomoto 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.