Journal
JNCI-JOURNAL OF THE NATIONAL CANCER INSTITUTE
Volume 95, Issue 23, Pages 1747-1757Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/jnci/dig109
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Epigenetic events, a key driving force in the development of cancer, are alterations in gene expression without changes in the DNA coding sequence that are heritable through cell division. Such changes occur throughout all stages of tumorigenesis, including the early phases, and are increasingly recognized as major mechanisms involved in silencing tumor suppressor genes. Epigenetic changes can be reversed by the use of small molecules and, thus, such changes are promising targets for cancer chemopreventive drug development. This review examines the basis for targeting the epigenome as a prevention strategy, focusing on understanding the epigenetic changes that occur before the development of frank malignancy, when chemopreventive intervention will have the maximal impact.
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