Increased Risk of Differentiated Thyroid Carcinoma with Combined Effects of Homologous Recombination Repair Gene Polymorphisms in an Iranian Population

Fayaz, Shima; Karimmirza, Maryam; Tanhaei, Shokoofeh; Fathi, Mozhde; Torbati, Peyman Mohammadi; Fard-Esfahani, Pezhman

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자료유형: 학술저널

저자정보: Fayaz, Shima (Department of Biochemistry, Pasteur Institute of Iran) Karimmirza, Maryam (Department of Biochemistry and Genetics, Payam-e-Noor University of Tehran) Tanhaei, Shokoofeh (Department of Biochemistry and Genetics, Payam-e-Noor University of Tehran) Fathi, Mozhde (Department of Biochemistry and Genetics, Payam-e-Noor University of Tehran) Torbati, Peyman Mohammadi (Department of Pathology, Labbafi-Nezhad Hospital, Shahid Beheshti Medical University) Fard-Esfahani, Pezhman (Department of Biochemistry, Pasteur Institute of Iran)

저널정보: 아시아태평양암예방학회 Asian Pacific journal of cancer prevention : APJCP Asian Pacific journal of cancer prevention : APJCP 제14권 제11호

발행연도: 2013.1

수록면: 6,727 - 6,731 (5page)

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Homologous recombination (HR) repair has a crucial role to play in the prevention of chromosomal instability, and it is clear that defects in some HR repair genes are associated with many cancers. To evaluate the potential effect of some HR repair gene polymorphisms with differentiated thyroid carcinoma (DTC), we assessed Rad51 (135G>C), Rad52 (2259C>T), XRCC2 (R188H) and XRCC3 (T241M) polymorphisms in Iranian DTC patients and cancer-free controls. In addition, haplotype analysis and gene combination assessment were carried out. Genotyping of Rad51 (135G>C), Rad52 (2259C>T) and XRCC3 (T241M) polymorphisms was determined by PCR-RFLP and PCR-HRM analysis was carried out to evaluate XRCC2 (R188H). Separately, Rad51, Rad52 and XRCC2 polymorphisms were not shown to be more significant in patients when compared to controls in crude, sex-adjusted and age-adjusted form. However, results indicated a significant difference in XRCC3 genotypes for patients when compared to controls (p value: 0.035). The GCTG haplotype demonstrated a significant difference (p value: 0.047). When compared to the wild type, the combined variant form of Rad52/XRCC2/XRCC3 revealed an elevated risk of DTC (p value: 0.007). It is recommended that Rad52 2259C>T, XRCC2 R188H and XRCC3 T241M polymorphisms should be simultaneously considered as contributing to a polygenic risk of differentiated thyroid carcinoma.

#Differentiated thyroid carcinoma #polymorphism #homologous recombination repair genes

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