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www.cancer.net/navigating-cancer-care/cancer-basics/genetics/genetics-cancer

All cancers begin when one or more genes in a cell are mutated, or changed. ... protein, which can cause cells to multiply uncontrollably and become cancerous.

www.mayoclinic.org/diseases-conditions/cancer/basics/causes/con-20032378

May 23, 2015 ... These mutations are the most common ones found in cancer. But many other gene mutations can contribute to causing cancer.

stanfordhealthcare.org/medical-clinics/cancer-genetics-program/understanding-genetics/how-genes-cause-cancer.html

The different types of genes, that when mutated, can lead to the development of cancer are described below. Remember, it takes mutations in several of these ...

www.sharecare.com/health/cancer-causes-and-risk-factors/how-cell-mutations-cause-cancer

The tumor-causing mutations are the rare cancer-causing mutations that tell the cell to ... The genes that regulate this process are known as cell-cycle genes, ...

www.cancer.gov/about-cancer/causes-prevention/genetics

May 1, 2017 ... Cancers that are not caused by inherited genetic mutations can sometimes appear to “run in families.” For example, a shared environment or ...

www.cancer.org/cancer/cancer-causes/genetics/genes-and-cancer/gene-changes.html

Jun 25, 2014 ... Gene mutations can sometimes lead to cancer. Learn more about changes in genes here.

www.cancer.org/cancer/colon-rectal-cancer/causes-risks-prevention/what-causes.html

Apr 14, 2017 ... Cancers can be caused by DNA mutations (changes) that turn on oncogenes or turn off tumor suppressor genes, resulting in cells growing out ...

www.cancerresearchuk.org/about-cancer/what-is-cancer/how-cancer-starts

Oct 27, 2014 ... For a cancer to start, certain changes take place within the genes of a cell or a group of cells. ... Mutations can happen by chance when a cell is dividing. ... form a tumour big enough to cause symptoms or show up on a scan.

www.cancer.org/cancer/cancer-causes/genetics.html

Gene changes that start in a single cell over the course of a person's life cause most cancers. In this section you can learn more about the complex links between ...