The UV ‐induced uptake of melanosome by skin keratinocyte is triggered by α7 nicotinic acetylcholine receptor‐mediated phagocytosis

The melanosome is an organelle that produces melanin for skin pigmentation, which is synthesized by epidermal melanocytes, subsequently transported and internalized by epidermal keratinocytes. Exposure to ultraviolet (UV) from sunlight radiation is a major stimulator of melanosome uptake by kerat…