1. Experimental Dermatology, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany;
2. Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg and Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany;
3. Institute of Physiology and Pathophysiology, University of Heidelberg, Heidelberg, Germany;
4. Department of Dermatology, University of Muenster, Muenster, Germany;
5. Department of Translational Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany; and
6. Division of Hepatology and Gene Therapy, Center for Applied Medical Research, University of Navarra, Pamplona, Spain