The group has established multiple collaborations with national and international scientists as e.g. with K. Midwood (Kennedy Institute of Rheumatology, Oxford, UK), E. van Obberghen-Schilling (iBV, Nice), R. Kain (MUW, Vienna, Austria), M. del Pozzo (Madrid, Spain), A. Sacco (The Burnham Institute, USA), M. de Palma (ISREC, Lausanne, Switzerland), K. Imanaka-Yoshida (Mie, Japan), O. Schilling (Freiburg, Germany), M. Plodinec (ARTIDIS, Switzerland), K. Schenke-Layland (Tübingen) G. Christofori (Basel, Switzerland) and others, Veronique Orian-Rouseeau (KIT, Karlsruhe).