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Investigation of NQO1 genetic polymorphism, NQO1 gene expression and PAH-DNA adducts in ESCC. A case-control study from Iran

Marjani, H.A. and Biramijamal, F. and Rakhshani, N. and Hossein-Nezhad, A. and Malekzadeh, R. (2010) Investigation of NQO1 genetic polymorphism, NQO1 gene expression and PAH-DNA adducts in ESCC. A case-control study from Iran. Genetics and Molecular Research, 9 (1). pp. 239-249.

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Abstract

We evaluated the effect of NQO1 genetic variation on PAH-DNA adducts in esophageal squamous cell carcinoma (ESCC) in northeast Iran. Golestan Province in northeast of Iran has one of the highest esophageal cancer incidences in the world. The study included 93 ESCC cases and 50 control individuals who were seen at the clinical cancer center in Golestan province. NQO1 C609T genotypes were determined by PCR-RFLP analysis. NQO1 gene expression in tissue samples was determined by quantitative real-time PCR. Immunohistochemical techniques were used to detect PAH-DNA adducts in ESCC and normal esophageal tissues. The distributions of NQO1 genetic polymorphism between cases and the control group were not significantly different. NQO1 gene expression was not higher in tumor tissues than in normal esophageal tissues adjacent to the ESCC; expression was higher in tumor tissues that had the NQO1 T allele. NQO1 gene expression was high in normal esophageal tissues. The level of PAH-DNA adducts was significantly higher in ESCC tissues of cases than in normal tissues adjacent to tumor tissues and in normal esophageal tissues of healthy controls. There were no significant differences between the adduct levels of normal esophageal tissues of patients and controls. There was also no significant relationship between cigarette smoking and PAH-DNA adducts. We concluded that PAHs are a risk factor for ESCC and that PAH-DNA adducts have potential as a biomarker for risk of ESCC.

Item Type: Article
Additional Information: cited By 19
Uncontrolled Keywords: polycyclic aromatic hydrocarbon, adult; article; case control study; controlled study; DNA adduct; esophageal squamous cell carcinoma; esophagus; female; gene; gene expression; genetic polymorphism; genetic variability; genotype; human; human tissue; Iran; major clinical study; male; NQO1 gene, Aged; Carcinoma, Squamous Cell; Case-Control Studies; DNA Adducts; Esophageal Neoplasms; Female; Gene Expression Regulation, Neoplastic; Genetic Predisposition to Disease; Humans; Iran; Male; Middle Aged; NAD(P)H Dehydrogenase (Quinone); Polycyclic Hydrocarbons, Aromatic; Polymorphism, Single Nucleotide
Subjects: مقالات نمایه شده محققین دانشگاه در سایت ,Web of Science ,Scopus
موارد کلی
Divisions: معاونت تحقیقات و فناوری
Depositing User: GOUMS
Date Deposited: 19 Apr 2015 09:04
Last Modified: 05 Apr 2017 10:07
URI: http://eprints.goums.ac.ir/id/eprint/2545

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