p. 242. How does cancer develop?
- Nicholas James
In order to understand: ‘How does cancer develop?’ it is necessary to know something about basic cell biology. The importance of the cell nucleus for understanding cancer is outlined. Fundamentally, cancer is caused by damage to the DNA in the cell nucleus, which leads to abnormal, unregulated growth of cells. The mechanism of cell division is explained. Then the ways in which this process can go wrong are described and the process of carcinogenesis — how cancers start — is examined in terms of the role that genes play in this and other external, environmental factors.