Cancer cells use telomerase to add several telomeric sections to the ends of their DNA during DNA replication, which prolongs their life span relative to other somatic cells and prevents cancer cells from dying. As a result, cancer cells never expire.
Uncontrolled cell division may result from growth factor overexpression or a lack of suppressor proteins. Tumors form as a result of unchecked cell proliferation, which if left untreated can be fatal. Continual mitosis takes place. Cancer cells use the enzyme telomerase to add several telomeric sections to the ends of their DNA during DNA replication, which prolongs their life span relative to other somatic cells. As a result, cancer cells never die. Through this technique, normally dying cancer cells just continue to divide. A condition known as cancer is one in which a small percentage of the body's cells develop out of control and spread to other bodily regions.
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