Cancer Information

Posts Tagged ‘chronic physical irritation’

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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