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Year : 2019  |  Volume : 15  |  Issue : 1  |  Page : 15-19

rs12904 polymorphism in the 3'-untranslated region of ephrin A1 ligand and the risk of sporadic colorectal cancer in the Iranian population

1 Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
2 Department of Genetics and Molecular Biology, School of Medicine; Acquired Immunodeficiency Research Center, Isfahan University of Medical Sciences; Gerfa Namayesh Azmayesh (Genazma) Science and Research Institute, Isfahan, Iran

Correspondence Address:
Dr. Rasoul Salehi
Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcrt.JCRT_766_17

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Background: Colorectal cancer (CRC) is rated as the second cause of cancer death. Genetic determinants are considered as driving forces in the development of sporadic CRC. Single-nucleotide polymorphisms (SNPs), due to their abundance in the human genome with collectively huge effect on cellular signaling pathways, are attributed as the main genetic factor in disease susceptibility including cancers. MicroRNAs are contributing to posttranslational gene regulation. They exert their regulatory function by binding to their specific recognition sequences located at 3'-untranslated region (UTR) of mRNAs. In the present study, we have elucidated the role of rs12904, a naturally occurring SNP, in the recognition site of miR200c in the 3'UTR of ephrin A1 ligand gene, in the development of sporadic CRC in the Iranian population. Materials and Methods: A case–control study using 152 CRC patients and 160 noncancerous counterparts was conducted to determine the rs12904 genotypes using polymerase chain reaction–restriction fragment length polymorphism method. Results: The results revealed no significant association between the rs12904 and sporadic CRC (odds ratio = 0.97, 95% confidence interval = 0.70–1.34). The frequency of genotypes and also alleles of the mentioned polymorphism were not significantly different between case and control groups (P = 0.765 and P = 0.847, respectively). Conclusion: The results suggest that this polymorphism probably has not a crucial role in the Iranian CRC risk and is not an important potential risk factor in molecular diagnostics of mentioned disease among the Iranian population.

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