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  • Title: G/T polymorphism in the interleukin-2 exon 1 region among Han Chinese systemic lupus erythematosus patients in Taiwan.
    Author: Lin YJ, Wan L, Sheu JJ, Huang CM, Lin CW, Lan YC, Lai CH, Hung CH, Tsai Y, Tsai CH, Lin WY, Liu HP, Lin TH, Huang YM, Tsai FJ.
    Journal: Clin Immunol; 2008 Oct; 129(1):36-9. PubMed ID: 18650128.
    Abstract:
    Interleukin-2 (IL-2), one of the crucial immunoregulatory cytokines required for T lymphocyte activation, plays an important role in autoimmune diseases. An IL-2 genetic G/T polymorphism (rs2069763) has been linked with multiple sclerosis and rheumatoid arthritis. We tested a hypothesis that this polymorphism confers systemic lupus erythematosus (SLE) susceptibility. Study participants were Han Chinese SLE patients and a healthy control group in Taiwan. Our results indicate (a) a significantly higher G allele frequency in SLE patients (P=1.91 x 10(-14); OR=3.94; 95% CI=2.74-5.66), (b) a significantly higher G allele frequency in SLE patients with antinuclear antibodies (ANA) (P=0.033; OR=4.21; 95% CI=1.01-17.51) and (c) a significantly lower G allele frequency in SLE patients with discoid rash (P=0.019; OR=0.41; 95% CI=0.19-0.88). Our results suggest that this polymorphism may be involved in the genetic background of Taiwanese SLE.
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