Investigating the Relationship of G-137C, C-607A, and A-1447G Polymorphisms in the Promoter of IL-18 and CXCL10 Inflammatory Genes with Prostate Cancer in an Iranian Population

Ahmadi, Nahid and Yasin Ahmadi, Seyyed Amir and Kheirollahi, Abdolreza and Shahsavar, Farhad (2024) Investigating the Relationship of G-137C, C-607A, and A-1447G Polymorphisms in the Promoter of IL-18 and CXCL10 Inflammatory Genes with Prostate Cancer in an Iranian Population. Prostate Cancer.

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Abstract

Introduction: Genetic and environmental factors are involved in prostate cancer. The current study was conducted to study the relationship between G-137C, C-607A, and A-1447G polymorphisms in the promoter of IL-18 and CXCL10 inflammatory genes with prostate cancer. Methods: As a genetic association study with a case-control design, the genomes of people living in Khorasan, Iran, were compared in two groups of cases and controls. The genotype of the A-1447G polymorphism present in the CXCL10 gene promoter was investigated by the PCR-RFLP method. PCR-SSP was used to study the genotype of G-137C and C-607A polymorphisms present in the IL-18 gene promoter. Odds ratio (OR) and 95% confidence interval (CI) were reported. Results: One mutant allele in CXCL10 A-1447G polymorphism (AG) increased the chance of cancer (OR = 4.902, 95% CI = 2.70-8.87) and two mutant alleles (GG) increased more (OR = 7.174, 95% CI = 2.48-20.68). One mutant allele in IL-18 G-137C polymorphism (CG) increased the chance of cancer (OR = 5.583, 95% CI = 3.04-10.22) and two mutant alleles (CC) increased more (OR = 9.571, 95% CI = 3.10-29.46). One mutant allele in IL-18 C607A polymorphism (CA) increased the chance of cancer (OR = 5.359, 95% CI = 2.95-9.70) and two mutant alleles (AA) increased more (OR = 7.083, 95% CI = 2.61-19.15) (P < 0.001).

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