Two thirds of cancers triggered by random DNA mutations

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A recent study has looked at three causes of cancer: random mutations, environmental factors and genetics. Cancer, despite its common name, is not one disease. Therefore, it is not surprising that different cancers are caused more by one of the three factors (random mutation, for example) than by environmental factors or genetics. In addition, some cell types that are more prone to cancer through one mechanism can be greatly accelerated by one or both of the other factors. Great progress has been made in fighting cancer from the use of genetic markers to more targeted therapies, but the more we learn about cancer the more we realize how complex it is.

Read more at LiveScience