Home FOR AUTHORS Neoplasma 2008 Neoplasma Vol.55, No.3, p.256-260, 2008

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Neoplasma Vol.55, No.3, p.256-260, 2008

Title: No association of MDM2 T309G polymorphism with susceptibility to Korean gastric cancer patients
Author: Y. G. CHO, B. J. CHOI, J. H. SONG, C. J. KIM, Z. CAO, S. W. NAM, J. Y. LEE, W. S. PARK

Abstract: Mouse double minute 2 (Mdm2) acts as a negative regulator of p53 by binding to the amino-terminus of p53. The common T309G polymorphism of Mdm2 has been the most frequently investigated, which can influence in cancer susceptibility and disease outcome. The specific aim of this study is to investigate whether the T309G polymorphism of Mdm2 was associated with individual susceptibility to gastric cancer in Korea. The frequency of the polymorphism was examined in 239 gastric cancer patients and 299 healthy controls. Polymorphism analysis was performed by amplifying the first intron of the Mdm2 and digesting with restriction enzyme and sequencing the products. The frequencies of genotypes: T/T, T/G and G/G were 26.8% (64/239), 46.0% (110/239) and 27.2% (65/239), respectively, in gastric cancer cases and 20.4% (61/299), 50.8% (152/ 299) and 28.8% (86/299), respectively, in healthy controls. Statistically, there was no significant difference in the frequency of genotype and allele between healthy control and gastric cancer patients. Finally, the polymorphism was not associated with increased risk of gastric cancer in this population. When stratified by histological subtype of gastric cancer, the risk was also not statistically significant. Our findings suggested that the T309G polymorphism of Mdm2 was not associated with an increased risk for gastric cancer in Korean population.

Keywords: Mdm2, p53, Gastric cancer, Polymorphism, Susceptibility
Year: 2008, Volume: 55, Issue: 3 Page From: 256, Page To: 260

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