Single nucleotide polymorphisms in DNA repair genes and risk of cervical cancer: A case-control study

  • Authors:
    • Lihua Zhang
    • Zhenchao Ruan
    • Qingya Hong
    • Xiangzhen  Gong
    • Zhengguang Hu
    • Yan Huang
    • Aidi Xu
  • View Affiliations

  • Published online on: October 26, 2011     https://doi.org/10.3892/ol.2011.463
  • Pages: 351-362
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Abstract

In this report, we describe a case control study in a Chinese population aimed at identifying possible associations between susceptibility to cervical cancer and single nucleotide polymorphisms in XRCC1 194C>T, XRCC1 280G>A, XRCC1 399G>A, ERCC2 751A>C , ERCC2 156C>A, ERCC1 118C>T, PARP1 762T>C , RAD51 135G>C and HER2 655A>G. The cases comprised 154 patients: 80 cervical squamous cell carcinomas (SCCs), 2 adenocarcinomas and 72 cervical intraepithelial neoplasias (CINs). A total of 177 healthy women were recruited as the controls. A significant association was found between ERCC1 118C>T and SCC in the additive genetic model [odds ratio (OR)=1.711; 95% confidence interval (CI), 1.089-2.880; p=0.021] and the dominant genetic model (OR=1.947; 95% CI, 1.056-3.590; p=0.033). Among women with a smoking family member, ERCC1 118C>T increased SCC risk in the additive model (OR=2.800; 95% CI, 1.314‑5.968; p=0.008). For women who had first intercourse before 22 years of age, XRCC1 280G>A was found to act as a protective factor for SCC under the additive model (OR=0.228; 95% CI, 0.058‑0.900; p=0.035), while RAD51 135G>C was a risk factor for CIN (OR=4.246; 95% CI, 1.335-13.502; p=0.014). For women who had first intercourse after 22 years of age, the additive genetic model showed RAD51 135G>C (OR=0.359; 95% CI, 0.138-0.934; p=0.036) and HER2 655A>G (OR=0.309; 95% CI, 0.098-0.972; p=0.045) to be protective factors for SCC. XRCC1 399G>A increased CIN risk among women who first gave birth before the age of 22 in the additive genetic model (OR=4.459; 95% CI, 1.139‑17.453; p=0.032). For those who first gave birth after age 22, ERCC1 118C>T was found to be a risk factor for SCC in the additive genetic model (OR=1.884; 95% CI, 1.088-3.264; p=0.024). A significant interaction was observed between RAD51 135G>C and age at first intercourse (pinteraction=0.033 for SCC, pinteraction=0.021 for CIN), as well with sexual partner number (pinteraction=0.001 for SCC). The interaction between HER2 655A>G and age at first intercourse, ERCC2 156C>A and family smoking status and XRCC1 280G>A and alcohol consumption were significant, with pinteraction=0.023 for SCC, pinteraction=0.021 for CIN and pinteraction=0.025 for SCC, respectively.
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February 2012
Volume 3 Issue 2

Print ISSN: 1792-1074
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Spandidos Publications style
Zhang L, Ruan Z, Hong Q, Gong X, Hu Z, Huang Y and Xu A: Single nucleotide polymorphisms in DNA repair genes and risk of cervical cancer: A case-control study. Oncol Lett 3: 351-362, 2012
APA
Zhang, L., Ruan, Z., Hong, Q., Gong, X., Hu, Z., Huang, Y., & Xu, A. (2012). Single nucleotide polymorphisms in DNA repair genes and risk of cervical cancer: A case-control study. Oncology Letters, 3, 351-362. https://doi.org/10.3892/ol.2011.463
MLA
Zhang, L., Ruan, Z., Hong, Q., Gong, X., Hu, Z., Huang, Y., Xu, A."Single nucleotide polymorphisms in DNA repair genes and risk of cervical cancer: A case-control study". Oncology Letters 3.2 (2012): 351-362.
Chicago
Zhang, L., Ruan, Z., Hong, Q., Gong, X., Hu, Z., Huang, Y., Xu, A."Single nucleotide polymorphisms in DNA repair genes and risk of cervical cancer: A case-control study". Oncology Letters 3, no. 2 (2012): 351-362. https://doi.org/10.3892/ol.2011.463