Cancer Information

Posts Tagged ‘DNA’

Cancer cells develop from normal cells in a complex process called transformation. The first step is the initiation process in which a change in the cell’s genetic material prepares to become cancerous. This change is caused by an agent called a carcinogen (may be a chemical, a virus, radiation, or sunlight). However, not all cells are equally susceptible to carcinogens. A genetic defect in the cell or other agent, known as a promoter, including chronic physical irritation may increase the ability of cells to become cancerous.

The next step is to promote, in this way a cell that has begun its change becomes cancerous. The promotion has no effect on cells that have not undergone the initiation process. Thus, several factors, often a combination of a susceptible cell and a carcinogen, are needed to cause cancer.
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We explained in Immortals and perfect (p34) that in recent years there has been a controversy around a patent by Myriad Genetics. American company is patented in its day two human genes associated with breast cancer (BRCA1 and BRCA2), which in practice means that only they can make their genetic tests to detect susceptibility to cancer.

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