Drug Aimed At Preventing Spread Of Breast Cancer To Organs
 

Think of a protective fence that blocks the neighbor's dog from charging into your backyard. The body, too, has fences -- physical and biochemical barriers that keep cells in their place. When breast cancer spreads or metastasizes, it crashes through the body's protective fences. The disease becomes fatal when it travels outside the mammary ducts, enters the bloodstream and spreads to the bones, liver or brain.

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