Interleukin-27 polymorphisms are associated with premature coronary artery disease and metabolic parameters in the Mexican population: The genetics of atherosclerotic disease (GEA) Mexican study

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Abstract

Several studies suggest an important role of Interleukin-27 in the development of atherosclerosis. The aim of this study was to establish whether the IL-27p28 gene polymorphisms are associated with premature coronary artery disease and/or other cardiovascular risk factors. Four IL-27p28 gene polymorphisms were selected and genotyped in 1162 premature coronary artery disease cases and 1107 controls. rs26528 T and rs40837 A alleles were significantly associated with a lower risk of premature coronary artery disease under different inheritance models (Pdominant = 0.046; Pover-dominant = 0.002; Pco-dominant1 = 0.007 for rs26528T; Pover-dominant = 0.008 and Pcodominant1 = 0.031 for rs40837). The rs40837 A allele was also associated with a lower risk of insulin resistance, in cases (Pover-dominant = 0.037) and controls (Padditive = 0.008; Pdominant = 0.047; Precessive= 0.014; Pco-dominant2 = 0.006), while the rs26528 T allele was associated with a lower risk of insulin resistance only in the control group (Precessive = 0.016; Pco-dominant2 = 0.021). Interleukin-27 plasma levels were measured in 450 controls and 450 cases, and were significantly higher in cases compared to controls (P = 0.004). However, Interleukin-27 plasma levels were not associated with IL-27p28 polymorphisms. Luciferase assays showed that co-transfection of the rs40837 A allele and miR-379-5p significantly decreased luciferase gene expression. Our study shows for the first time, that IL-27p28 gene polymorphisms are associated with premature coronary artery disease and with some metabolic parameters. The rs40837 A allele in presence of miR-379-5p significantly decreased luciferase gene expression.

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Posadas-Sánchez, R., Pérez-Hernández, N., Rodríguez-Pérez, J. M., Coral-Vázquez, R. M., Roque-Ramírez, B., Llorente, L., … Vargas-Alarcón, G. (2017). Interleukin-27 polymorphisms are associated with premature coronary artery disease and metabolic parameters in the Mexican population: The genetics of atherosclerotic disease (GEA) Mexican study. Oncotarget, 8(38), 64459–64470. https://doi.org/10.18632/oncotarget.16223

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