Immunofluorescence imaging (IMAGE) University of Pennsylvania Caption Immunofluorescence imaging showing nerve terminals (magenta) innervating keratinocytes (yellow) and myeloid cells (white) that express IL-33 (green) in naive murine skin. (Image: Courtesy of Camila Napuri) Credit Camila Napuri Usage Restrictions Seek permission to redistribute from authors. 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.