1. Department of Experimental Medicine, University of Rome “La Sapienza”, Rome, Italy
2. Rheumatology Unit, Laboratory of Experimental Medicine and Environmental Pathology, Rieti, Italy
3. Department of Internal Medicine and Medical Specialties, University of Rome “La Sapienza”, Rome, Italy
4. Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University of London, London, UK