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Our somatic cells are born by mitosis and almost all will die by apoptosis, a physiological process of cellular suicide. Cancers can occur when this balance is disturbed, either by an increase in cell proliferation or a decrease in cell death. The goal of cancer therapy is to promote the death of cancer cells without causing too much damage to normal cells. Our knowledge of the mechanisms of apoptosis has enhanced our understanding of how some cancers originate and progress. It has also revealed that existing cancer therapies can work in two ways, by induction of apoptosis as well as by direct toxicity. In some cases resistance to apoptosis may explain why cancer therapies fail. Novel treatments designed to exploit our knowledge of apoptotic mechanisms are under development to promote apoptosis of cancer cells and limit concurrent death of normal cells.

Original publication

DOI

10.1093/carcin/bgh283

Type

Journal article

Publication Date

02/2005

Volume

26

Pages

263 - 270

Keywords

Animals, Antineoplastic Agents, Apoptosis, Cell Proliferation, Genes, p53, Humans, Mice, Mitosis, Neoplasms, Proto-Oncogene Proteins c-bcl-2, Signal Transduction