Affiliated Hospital of Jiangsu University 1 article published in JoVE Developmental Biology Direct Reprogramming of Mouse Fibroblasts into Melanocytes Yi-Xuan Zhang1,2, Li-Ping Liu1,2, Ming Jin1,2, Hui Sun1,2, Han-Lin Zhang1,2, Yu-Mei Li1,2 1Institute for Regenerative Medicine, Jiangsu University, 2Department of Dermatology, Affiliated Hospital of Jiangsu University Here, we describe an optimized direct reprogramming system for melanocytes and a high-efficiency, concentrated virus packaging system that ensures smooth direct reprogramming.