The document reviewed the role of melanocyte stem cells (McSCs) in skin pigmentation and their potential in disease modeling and regenerative medicine. It discussed how McSCs, originating from neural crest cells, continuously repopulated functional melanocytes in adult skin. Alterations in McSCs were linked to skin abnormalities and diseases. Most knowledge about McSCs came from studies on mouse hair follicles, but anatomical differences suggested potential distinctions between mouse and human McSCs. Advances in human pluripotent stem cell research offered tools to obtain human McSCs and melanocytes, enhancing research and regenerative applications. The review emphasized recent progress in understanding melanocyte development and McSC regulation.
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