Kangaroo DNA May Provides Insights for Skin Cancer Prevention

Linda Feketeová and Dr. Uta Wille from the ARC Center of Excellence for Free Radical Chemistry and Biotechnology at the University of Melbourne (Australia), together with scientists from the University of Innsbruck (Austria), Dr. Feketeová and Dr. Wille, are working toward reducing the number of skin cancer-related cases by studying the chemistry behind potential skin cancer therapies. The teams are investigating a DNA repair enzyme found in kangaroos and many other organisms, but not humans. This enzyme is very effective in repairing a specific type of DNA damage linked to many skin cancers.

"As summer approaches, excessive exposure to the sun's harmful UV [ultraviolet] light will see more than 400,000 Australians diagnosed with skin cancer,” remarked Dr. Feketeová. "Other research teams have proposed a ‘dream cream' containing the DNA repair enzyme which you could slap on your skin after a day in the sun. We are now examining whether this would be feasible by looking at the chemistry behind the DNA repair system.”

Using highly advanced technology, the groups are simulating the skin's UV exposure in the laboratory, and then analyzing the DNA repair process in a specialized mass spectrometer instrument. "We were quite surprised that the DNA's repair process also resulted in a number of chemical by-products, which have never been seen before,” stated Dr. Wille. "Our plan is to study these products to understand if the DNA repair enzyme could be incorporated into a safe and effective method for skin cancer prevention.”

"But there is still much to investigate before this ‘dream cream' will be available at the pharmacy, so don't throw out your sunscreen just yet,” added Dr. Feketeová.

This work will be published as a "hot paper” in the upcoming edition of the journal Chemical Communications.

Related Links:
ARC Centre of Excellence for Free Radical Chemistry and Biotechnology
University of Innsbruck