When tumor suppressor genes don't work properly, cells can grow out of control, make more cells that grow out of control, and don't die when they should, which can lead to cancer. Changes or mutations in DNA can cause normal breast cells to become cancer. For example, tests can identify women whose breast cancer cells have too many copies of the HER2 oncogene. Acquired DNA changes take place over time and are only in the breast cancer cells. These women can then take steps to reduce their risk of breast cancer and make plans to look for changes in their breasts to valerie bertilnelli nude find cancer at an earlier, more treatable stage.
How Does Breast Cancer Start?
Acquired DNA changes take place over time and are only in the breast cancer cells. Normal breast cells become cancer because of changes mutations in DNA. Mutated DNA can lead to mutated genes.
It helps control how and when the cell grows and divides. Although many women with high penetrance mutations develop cancer, most cases of cancer including breast cancer are not caused by this kind of mutation. But most DNA changes linked to breast cancer are acquired. Since these mutations in BRCA 1 and BRCA 2 genes are also associated with other cancers besides breastwomen with these mutations can also consider early screening and preventive actions for other cancers. The genes involved can affect things like hormone levels, metabolism, or other things that impact risk factors for breast cancer.
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