Biochemical pathway to skin darkening holds implications for prevention of skin cancers

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Biochemical pathway to skin darkening holds implications for prevention of skin cancers

A skin pigmentation mechanism that can darken the color of human skin as a natural defense against ultraviolet (UV)-associated cancers has been discovered by scientists at Massachusetts General Hospital (MGH). Mediating the biological process is an enzyme, NNT, which plays a key role in the production of melanin (a pigment that protects the skin from harmful UV rays) and whose inhibition through a topical drug or ointment could potentially reduce the risk of skin cancers. The study was published online in Cell.

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