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DNA typos to blame for most cancer mutations


Claire.

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DNA typos to blame for most cancer mutations

Nearly two-thirds of the mutations that drive cancers are caused by errors that occur when cells copy DNA, mathematical models suggest.

The findings, published in Science on 23 March, are the latest argument in a long-running debate over how much the environment or intrinsic factors contribute to cancer. They also suggest that many cancer mutations are not inherited and could not have been prevented by, for example, making different lifestyle choices. It’s a finding that could change how researchers wage the “war on cancer”, says study co-author Bert Vogelstein, a geneticist at the Sidney Kimmel Comprehensive Cancer Center in Baltimore, Maryland.

Read more: Nature

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Mind-boggling to think that all it takes is a teeny tiny error in DNA for cells to multiply out of control. Not exactly the best news.

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