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Evaluation of Relative Frequency of Single Nucleotide Polymorphism G870a (Rs9344) in Cyclind1 Gene in Colorectal Cancer Patients and Healthy Subjects of Isfahan Province, Iran



Rahimirad S1 ; Salehi R2 ; Saffar B1 ; Niaee M1
Authors
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Authors Affiliations
  1. 1. Department of Genetic, School of Sciences, Shahrekord University, Shahrekord, Iran
  2. 2. Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Source: Journal of Isfahan Medical School Published:2016

Abstract

Background: Colorectal cancer (CRC) is one of the most common cancers in the world. High activity of CyclinD1 gene has been seen in the progress of this cancer. A common polymorphism (G870A) in exon 4 of CyclinD1 produces a variant transcript with longer half-life and may cause uncontrollable cellular growth thus contributing to cancer development. This study was performed to evaluate the frequency of CCND1 G870A polymorphism between CRC cases and controls. Methods: DNA samples from peripheral blood leukocytes of 50 patients with sporadic colorectal cancer and 50 healthy subjects were extracted. CCND1 G870A polymorphism was genotyped by polymerase chain reaction -restriction fragment length polymorphism (PCR-RFLP) in healthy subjects and patients. Statistical analysis was performed by chi-squared test via SPSS software. Findings: Relationship between CCND1 G870A polymorphism in allele frequencies between cases and controls were not observed (P = 0.204). While the frequency of AA genotype was significantly higher in patients (P = 0.040, 95% CI = 1.13-5.54, OR = 2.25). Conclusion: According to the significant association observed between certain genotypes of this locus (AA) with colorectal cancer, it can be used in the future as a good prognostic marker in CRC screening programs. © 2016, Isfahan University of Medical Sciences(IUMS). All rights reserved.
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