1. Department of Biology, University of Naples Federico II, 80126 Naples, Italy
2. Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania “Luigi Vanvitelli”, 81100 Caserta, Italy
3. Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
4. Department of Health Sciences, University Magna Graecia, Viale Europa, 88100 Catanzaro, Italy
5. Department of Pathology, Anatomy and Cell Biology, Columbia University, New York, NY 10032, USA