Molecule clue to breast cancer

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Scientists have identified a molecule present in most breast cancers which appears to control the growth of cancer cells and could point the way to new treatments. Studies show levels of the molecule, called Brk, are higher in two-thirds of breast cancers but absent in normal breast tissue.

The finding, published in Oncogene, was made by a team at the Institute of Cancer Research. Dr Mark Crompton, leader of the team, said: "With further research, it may be possible to develop drugs that target Brk directly, thus stunting the tumour's growth, without impacting surrounding healthy cells."