Topics: skin, skin cancer, sun, sunscreen

NEXT time your kids complain about putting on sunscreen, tell them this: Sunscreen shields a superhero gene that protects them from getting cancer.

It is widely accepted that sunscreen stops you from getting burnt but to date there has been academic debate about the effectiveness of sunscreen in preventing skin cancers.

Now QUT has undertaken a world-first human study to assess the impact of sunscreen at the molecular level.

Researchers found sunscreen provides 100 per cent protection against all three forms of skin cancer: BCC (basal cell carcinoma); SCC (squamous cell carcinoma); and malignant melanoma.

Lead researcher Dr Elke Hacker, from QUT's AusSun Research Lab, said sunscreen not only provided 100 per cent protection against the damage that can lead to skin cancer but it shielded the important p53 gene, a gene that works to prevent cancer.

"As soon as our skin becomes sun damaged, the p53 gene goes to work repairing that damage and thereby preventing skin cancer occurring.

"But over time if skin is burnt regularly the p53 gene mutates and can no longer do the job it was intended for - it no longer repairs sun damaged skin and without this protection skin cancers are far more likely to occur."

The study, published in the Pigment Cell & Melanoma Research journal, looked at the impact of sunlight on human skin, both with and without sunscreen, and found no evidence of UV-induced skin damage when proper application of sunscreen (SPF30+) had been applied to exposed area.

"Melanoma is the most lethal form of skin cancer with research showing damage of melanocytes - the pigment-producing cells of the skin - after sun exposure plays a role in the development of skin cancer," Dr Hacker said.

Here is the original post:
Sunscreen not only saves skin but 'superhero' within

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