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DNA hypermethylation in gastric cancer

Cited 40 time in Web of Science Cited 46 time in Scopus
Authors
Kim, T. Y.; Jong, H. S.; Jung, Y.; Kim, T. Y.; Kang, G. H.; Bang, Yung-Jue
Issue Date
2004-07
Citation
Alimentary Pharmacology and Therapeutics, Vol.20 No.1, pp.131-142
Abstract
Background: Transcriptional silencing of tumour suppressor genes by DNA hypermethylation plays a crucial role in the progression of gastric cancer. Many genes involved in the regulation of cell cycle, tissue invasion, DNA repair and apoptosis have been shown to be inactivated by this type of epigenetic mechanism. Results: Recent studies have demonstrated that DNA hypermethylation begins early in cancer progression, and in some cases, may precede the neoplastic process. Ageing is associated with DNA hypermethylation, and may provide a mechanistic link between ageing and cancer. Several reports have indicated that Epstein-Barr virus-related gastric cancer is associated with a high frequency of DNA hypermethylation, suggesting that viral oncogenesis might involve DNA hypermethylation with inactivation of tumour suppressor genes. Hypermethylation of hMLH1 with the resulting loss of its expression is known to cause microsatellite instability, which reflects genomic instability associated with defective DNA mismatch repair genes in the tumour. Conclusions: In conclusion, recent studies demonstrate that DNA hypermethylation is a crucial mechanism of inactivation of tumour suppressor genes in gastric cancer. A better understanding of DNA hypermethylation will provide us with new opportunities in the diagnosis and therapy of gastric cancer.
ISSN
0269-2813
URI
https://hdl.handle.net/10371/172941
DOI
https://doi.org/10.1111/j.1365-2036.2004.01984.x
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College of Medicine/School of Medicine (의과대학/대학원)Internal Medicine (내과학전공)Journal Papers (저널논문_내과학전공)
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