Immunofluorescent Stained Mouse Intestine (IMAGE) University of California - San Diego Caption Immunofluorescent staining of intestinal epithelium tissue shows cell growth (green). In a normal mouse model (left), cell growth is controlled but in a mouse model with the ERK1/2 pathway blocked (right) increased cell proliferation and loss of organization occurred. Credit UC San Diego Health Usage Restrictions Use photo credit 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.