1. Cellular Immunoregulation Group, Department of Dermatology and Allergology, Charité–Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
2. Deutsches Rheuma-Forschungszentrum Berlin, 10117 Berlin, Germany.
3. Department of Neuropathology, Charité–Universitätsmedizin Berlin, 10117 Berlin, Germany.
4. Berlin-Brandenburg Center for Regenerative Therapies, Augustenburger Platz 1, 13353 Berlin, Germany.
5. Department of Neurology, Charité–Universitätsmedizin Berlin, 10117 Berlin, Germany.