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Neoplasma. 2007;54(3):235-9.

Association of cyclin D1 G870A polymorphism with susceptibility to gastric cancers in Korean male patients.

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1
Department of Pathology, The Catholic University of Korea, Seoul, Korea.

Abstract

Cyclin D1 is a key cell cycle regulator that is upregulated in gastric cancer. The common G870A polymorphism of cyclin D1 which can influence cancer susceptibility and disease outcome has been the most frequently investigated. The specific aim of this study is to investigate whether the G870A polymorphism of cyclin D1 was associated with individual susceptibility to gastric cancer in Korea. The frequency of the polymorphism was examined in 253 gastric cancer patients and 442 healthy controls. Polymorphism analysis was performed by amplifying exon 4 of cyclin D1 and sequencing the products. The frequencies of genotypes: G/G, G/A and A/A were 28.1% (71/253), 49.4% (125/253) and 22.5% (57/253), respectively, in gastric cancer cases, and 23.1%, 51.1% and 25.8%, respectively, in healthy controls. Statistically, the polymorphism was not associated with increased risk of gastric cancer. When stratified by histological subtype of gastric cancer, the risk was also not statistically significant. However, the male gastric cancer patients showed a significantly higher proportion of the homozygous G/G genotype and the G allele (Chi-Square test, P = 0.0242 & P = 0.0307) compared to males in the control group. Thus, our findings suggested that the G870A polymorphism of cyclin D1 was not associated with an increased risk for gastric cancer in this population, however, it may contribute to susceptibility to gastric cancer in men.

PMID:
17447856
[Indexed for MEDLINE]

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