1. Institute of Anatomy and Cell Biology, Università Cattolica del Sacro Cuore, Rome, Italy
2. Institute of Physiology and Biochemistry, Faculty of Biology, University of Belgrade, Belgrade, Serbia
3. Department of Biology, University of Rome “Tor Vergata”, Rome, Italy
4. IRCCS San Raffaele Scientific Institute, Università Vita-Salute San Raffaele, Milan, Italy