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Sivoňová MK, Vilčková M, Kliment J, Mahmood S, Jurečeková J, Dušenková S, Waczulíková I, Slezák P, Dobrota D. Association of p53 and p21 polymorphisms with prostate cancer. Biomed Rep 2015; 3:707-714. [PMID: 26405550 DOI: 10.3892/br.2015.496] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 07/03/2015] [Indexed: 12/13/2022] Open
Abstract
Cell cycle deregulation is common in human cancer. Alterations of the tumor-suppressor gene p53 and its downstream effector p21 have been indicated in the development of numerous human malignancies. Therefore, we hypothesize that the p53 codon 72 polymorphism, either on its own or in combination with p21 (C98A and C70T) polymorphisms, modifies the risk of prostate cancer within the Slovak population, and no previous studies have investigated these gene-gene interactions in the pathogenesis of prostate cancer in the Slovak population. Polymerase chain reaction-restriction fragment length polymorphism was used to determine the p53 and p21 genotypes in subjects comprising 300 prostate cancer patients and 446 healthy individuals. These 3 polymorphisms individually did not correlate with the prostate cancer risk. Conversely, the interaction between the p53 and p21 polymorphisms significantly decreased the risk of prostate cancer, with the odds ratio (OR) being 0.49 [95% confidence interval (CI), 0.27-0.86; P<0.05] for subjects carrying the p53 codon 72 arginine (Arg)/proline (Pro)+Pro/Pro and p21 C98A CA genotypes compared to the combined reference genotypes p53 codon 72 Arg/Arg and p21 C98A CC. Neither the p53 genotypes nor the p21 genotypes showed statistically significant differences in Gleason score or serum prostate-specific antigen levels (P>0.05). A decreased risk of prostate cancer association with the p21 C98A CA genotype (OR=0.58; 95% CI, 0.36-0.93; P<0.05) in non-smokers compared to the non-smokers with the p21 C98A CC genotype was observed. Smokers carrying the p53 codon 72 Pro/Pro genotype were not at any significant risk of prostate cancer (OR=2.97; 95% CI, 0.51-17.15) compared to the non-smokers with the Arg/Arg genotype. Taken together, to the best of our knowledge this is the first study to show that a combination of the variant genotypes of p53 codon 72 and p21 C98A may modify the prostate cancer risk within the Slovak population.
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Affiliation(s)
- Monika Kmeťová Sivoňová
- Department of Medical Biochemistry, Comenius University in Bratislava, Jessenius Faculty of Medicine, 036 01 Martin, Slovak Republic
| | - Marta Vilčková
- Department of Medical Biochemistry, Comenius University in Bratislava, Jessenius Faculty of Medicine, 036 01 Martin, Slovak Republic
| | - Ján Kliment
- Department of Urology, Comenius University in Bratislava, Jessenius Faculty of Medicine and UHM, 036 01 Martin, Slovak Republic
| | - Silvia Mahmood
- Department of Medical Biochemistry, Comenius University in Bratislava, Jessenius Faculty of Medicine, 036 01 Martin, Slovak Republic
| | - Jana Jurečeková
- Department of Medical Biochemistry, Comenius University in Bratislava, Jessenius Faculty of Medicine, 036 01 Martin, Slovak Republic
| | - Svetlana Dušenková
- Department of Urology, Comenius University in Bratislava, Jessenius Faculty of Medicine and UHM, 036 01 Martin, Slovak Republic
| | - Iveta Waczulíková
- Department of Nuclear Physics and Biophysics, Division of Biomedical Physics, Comenius University, Faculty of Mathematics, Physics and Informatics, 842 48 Bratislava, Slovak Republic
| | - Peter Slezák
- Institute of Simulation and Virtual Medical Education, Comenius University, Faculty of Medicine, 813 72 Bratislava, Slovak Republic
| | - Dušan Dobrota
- Department of Medical Biochemistry, Comenius University in Bratislava, Jessenius Faculty of Medicine, 036 01 Martin, Slovak Republic
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