Genetic Her-2 Neu - Tumors DNA Test


Genetic Her-2 Neu - Tumors DNA Test

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HER2 is a gene that sends control signals to your cells, telling them to grow, divide, and make repairs. A healthy breast cell has 2 copies of the HER2 gene. Some kinds of breast cancer get started when a breast cell has more than 2 copies of that gene, and those copies start over-producing the HER2 protein. As a result, the affected cells grow and divide much too quickly.

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This genetic problem is not inherited from your parents. The most likely cause of this problem is aging, and wear and tear on the body.
Fluorescence In Situ Hybridization - this test uses fluorescent probes to look at the number of HER2 gene copies in a tumor cell. If there are more than 2 copies of the HER2 gene, then the cancer is HER2 positive.
If your breast cancer is tested for HER2 status, the results will be graded as positive or negative. If your results are graded as HER2 positive, that means that your HER2 genes are over-producing the HER2 protein, and that those cells are growing rapidly and creating the cancer. If your results are graded HER2 negative, then the HER2 protein is not causing the cancer..