Asian Pacific Journal of Cancer Prevention

Asian Pacific Journal of Cancer Prevention (아시아태평양암예방학회)
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The Role of Genetic Polymorphisms in Nrf2 and P73 in Egyptian Women with Breast Cancer

  • Azhary, Nevin M Al (Biochemistry and Molecular Medicine Department, College of Medicine, Taibah University) ;
  • Kamel, Mahmoud M (Department of Clinical Pathology, National Cancer Institute, Cairo University) ;
  • Ismail, Yahia M (Department of Medical Oncology, National Cancer Institute, Cairo University) ;
  • Mahmoud, Amal A (Clinical Pathology Department, Faculty of Medicine, Assiut University) ;
  • Radwan, Enas M (Department of Clinical Pathology, National Cancer Institute, Cairo University)
  • Published : 2016.11.01
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Abstract

Background: Breast cancer is the commonest cancer in Egyptian females. Nrf2 is involved in oxidative stress while P73 functions in response to DNA damage. This study aimed to assess the role of Nrf2 promoter and P73 G4C14 to A4T14 SNPs in breast cancer in Egypt. Patients: Eighty-five female patients with breast tumours (41 malignant, 44 benign) were included. Nrf2 (rs6721961) and p73 (G4A) SNPs were determined by PCR- CTPP assay. Results: Genotype frequencies of the Nrf2 promoter SNP were 34.2% and 37.9% for AA in benign and malignant groups respectively, and 43.9% and 40.5% for CC and, 21.9 % and 21.6% for CA. Genotype frequencies for the P73 G4A SNP were 52.9% and 44.7% for GA in benign and malignant groups respectively, and 47.1% and 55.3% for GG. Discussion: Nrf2 genotypes in pre - and post-menopausal patients, showed significantly different distributions in the 2 patient groups, the AA genotype being significantly more common in pre-menopausal patients. The P73 G4A SNP showed no relation to age of disease onset. Conclusion: The Nrf2 (rs6721961) AA genotype might be related to early breast cancer onset. In contrast the P73 G4A polymorphism showed no relation to either disease risk or age at presentation.

Keywords

References

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