Merkel Cell Development in Mouse Skin (image) Rockefeller University Press Caption Merkel cells (red) fail to differentiate from epidermal stem cells in mouse skin lacking Atoh1 (right). The study appears in the October 5, 2009, issue of the Journal of Cell Biology. Credit Van Keymeulen, A., et al. 2009. J. Cell Biol. doi:10.1083/jcb.200907080. Usage Restrictions Reporters may freely use these materials in news coverage, with the appropriate credit information. 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.