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MEDICAL ANIMATION TRANSCRIPT: Targeted therapy is a treatment option for cancers that have a specific kind of marker on the cancer cells. One therapy targets cells with markers called HER2. HER2 is a naturally occurring protein on your cells that normally promotes healthy growth in your cells. Some cancer cells have too much of this protein. This causes the cancer cells to grow and spread more aggressively than normal cells. Targeted therapy drugs are designed to only attach to the HER2 proteins on cancer cells. As a result, the cancer cells stop growing and may die. more

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