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Association of Single Nucleotide Polymorphisms in Interleukin-12 Receptor (IL-12Rβ1 and IL-12Rβ2) with Asthma in a Korean Population

  • Jung, Jaemee (Department of Biomedical Laboratory Science, College of Life and Health Sciences, Hoseo University) ;
  • Park, Sangjung (Department of Biomedical Laboratory Science, College of Life and Health Sciences, Hoseo University) ;
  • Kim, Sung-Soo (Department of Biomedical Laboratory Science, College of Life and Health Sciences, Hoseo University) ;
  • Hong, Mijin (Department of Biomedical Laboratory Science, College of Life and Health Sciences, Hoseo University) ;
  • Choi, Eunhye (Department of Biomedical Laboratory Science, College of Life and Health Sciences, Hoseo University) ;
  • Jin, Hyun-Seok (Department of Biomedical Laboratory Science, College of Life and Health Sciences, Hoseo University) ;
  • Hwang, Dahyun (Department of Biomedical Laboratory Science, College of Life and Health Sciences, Hoseo University)
  • 투고 : 2020.12.01
  • 심사 : 2020.12.16
  • 발행 : 2020.12.31

초록

Asthma is a chronic disease and occurs in airway in the lung. The cause of the disease has not been identified, it is assumed that both genetic and environmental risk factors play an important role in the development of asthma. Interleukin (IL)-12 is a cytokine regulating T-cell and NK cell. In this study, we analyzed the genetic polymorphisms of IL-12 receptor genes (IL-12Rβ1 and IL-12Rβ2) in asthma patients and normal individuals in a Korean population. We analyzed single nucleotide polymorphisms (SNPs) in IL-12Rβ1 and IL-12Rβ2 using the genotype data of 193 asthma cases and 3,228 healthy controls from the Korea Association REsource for their correlation with asthma case. IL-12Rβ1 and IL-12Rβ2 genes showed statistically significant polymorphism association with asthma case. As a results, 16 SNPs from IL-12Rβ1 and IL-12Rβ2 genes showed statistically significant association with asthma. Among them, rs375947 SNP in IL-12Rβ1 showed the greatest statistical correlation with asthma (P-value = 0.028, Odds Ratio = 1.27, 95% Confidence Interval = 1.03~1.57). The groups with minor allele of IL-12Rβ1 and IL-12Rβ2 showed increased risk of asthma. The genotype-based mRNA expression analysis showed that the group of minor allele of IL-12Rβ1 showed decreased mRNA expression. Decreased IL-12Rβ1 expression causes decreased IL-12 signaling, and this affects developing asthma. In conclusion, the SNPs in IL-12Rβ1 and IL-12Rβ2 may contribute to development of asthma in a Korean population.

키워드

참고문헌

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