An amyloid link between Parkinson's disease and melanoma

On the surface, Parkinson’s disease—a neurodegenerative disorder—and melanoma—a type of skin cancer—do not appear to have much in common. However, for nearly 50 years, doctors have recognized that Parkinson’s disease patients are more likely to develop melanoma than the general population. Now, scientists report a molecular link between the two diseases in the form of protein aggregates known as amyloids.