Itching for New Help Eczema (image) University of Pennsylvania School of Medicine Caption This is a visualization of innate immune cells in inflamed skin. A histologic section of skin isolated from MC903-treated Rag1-/- mice was stained to visualize cytokeratin (green), IL-33R+ innate immune cells (red) and DAPI+ nuclei (blue). Credit Gregory Rak, Jerome Molleston, Brian Kim and David Artis, Perelman School of Medicine, University of Pennsylvania Usage Restrictions None 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.