学術雑誌論文 Human RAD 17 Polymorphism at Codon 546 Is Associated with the Risk of Colorectal Cancer

Yasuda, Yukiko  ,  Sakai, Akiko  ,  Ito, Sachio  ,  Sasai, Kaori  ,  Yamamoto, Hiromasa  ,  Matsubara, Nagahide  ,  Ouchida, Mamoru  ,  Katayama, Hiroshi  ,  Shimizu, Kenji

71 ( 1 )  , pp.59 - 68 , 2017-02 , Okayama University Medical School
ISSN:0386-300X
NII書誌ID(NCID):AA00508441
内容記述
Human RAD17 acts as an activator of checkpoint signals in response to DNA damage. Here we evaluated the association of hRAD17 Leu546Arg (rs1045051), a missense single nucleotide polymorphism, with the risk of colorectal cancer (CRC) in relation to smoking and alcohol consumption habits in 212 CRC patients and 1,142 cancer-free controls in a case-control study conducted in Japan. The results showed that the hRAD17 Leu/Arg genotype compared to the Leu/Leu genotypes was significantly associated with the protective effect on CRC risk with the adjusted odds ratio (OR) of 0.68 [95% confidence interval (CI): 0.49−0.95, p=0.024], and the males with the Arg/Arg genotype had a greater risk of CRC compared to those with the Leu/Leu and Leu/Arg genotypes (OR=1.87, 95%CI 1.03−3.40, p=0.04). In stratified studies, the protective effect of the Leu/Arg genotype on CRC risk was markedly higher in the light smokers (< 20 pack years) (OR=0.61, 95%CI 0.40−0.94, p=0.024) and the rectal cancer patients (OR=0.49, 95%CI 0.31−0.78, p=0.003). The risk of the Arg/Arg genotype was associated with heavy smoking (≥ 20 pack-years) (OR=2.24, 95%CI 1.09−4.61, p=0.03). These findings suggest that the genetic variant of hRAD17 Leu546Arg polymorphism has a significant effect on CRC susceptibility in Japanese.
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http://ousar.lib.okayama-u.ac.jp/files/public/5/54826/20170215164207457728/71_1_59.pdf

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