Journal
CANCER LETTERS
Volume 301, Issue 1, Pages 7-16Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.canlet.2010.10.017
Keywords
Thoracic neoplasms; DNA methylation; DNA methyltransferase; Tumor suppressor genes
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Thoracic neoplasms, which include lung cancers, esophageal carcinoma, and thymic epithelial tumors, are the leading causes of tumor-related death and a major health concern worldwide. The development of neoplasms is a multistep process involving both genetic and epigenetic alterations. A growing body of research provides evidence that aberrant DNA methylation, including DNA hypermethylation in promoter regions, global DNA hypomethylation and the overexpression of DNA methyltransferases, plays an important role in tumorigenesis. In this review, we summarize published observations of methylation pattern disruptions in thoracic tumors, and discuss how these abnormalities contribute to the development of cancers. We review recent findings showing that suppressing the activity of the DNA methylating enzymes DNMTs can have potent anti-cancer effects, and discuss the possibility of developing novel therapies for thoracic tumors based on DNMT inhibition. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
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