Genetic map of prostate cancer cracked

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The genetic code of one of the most deadly cancers has been mapped by scientists for the first time in a breakthrough that could “transform” our understanding of the disease.

The blueprint uncovers many of the mutations and genetic damage that drives prostate cancer and could lead to new treatments and better diagnosis.

Such a detailed picture of the fundamental causes of the disease will lead to earlier detection and new breeds of drugs to reverse the damage. 

Eventually it could lead to patient’s having their own “cancer chart” drawn up which could be used by doctors to provide “made to measure” personal care.

Dr Mike Berger, lead author at the Broad Institute at MIT and Harvard, said: “This is a transforming moment in understanding the underlying biology of prostate cancer.

“It offers the potential of new targets for treatment and earlier diagnosis of the more aggressive strains of the disease.”

All cancers are caused by damage or mutations to the DNA of formerly healthy cells acquired during a person’s lifetime.

This damage causes them to grow into abnormal lumps or tumours and spread around the body disrupting its normal processes and eventually – if unchecked – causing death.

Dr Berger and colleagues sequenced the genomes of seven different prostate cancer tumours and compared them to healthy tissues to find where they had been damaged or mutated.

They found more than 21,000 mutations – like spelling mistakes – in the seven tumours as well as more than a 100 “rearrangements” where whole sections of DNA have broken free and reattached to other parts of the genome.

Most of these alterations to the normal genome are known as “passengers” and cause damage but not cancer.

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