Link between skin pigmentation and cancer may be genetic

Studies by scientists in Iceland and Australia have suggested that genetics, rather than skin tone, may be a better indicator for who is most at risk from skin cancer.

Iceland-based deCODE Genetics is amongst the groups which have identified a gene called ASIP that doubles the risk of getting melanoma, along with the already-identified gene MC1R that has a similar effect. Both genes are linked to red hair, freckles and sun sensitivity, so explaining the traditionally-accepted link, the New Scientist magazine reported.

Kari Stefannson, chief executive of deCODE, stressed that the gene had little effect in his native country where strong sunlight is rare, and so the key factor in avoiding melanoma was still staying out of direct sunlight.