Association of estrogen receptor 1 (ESR1) haplotypes with risk for systemic lupus erythematosus among South Indians

作者：Rupasree Yedluri; Naushad Shaik Mohammad; Rajasekhar Liza; Uma Addepally; Kutala Vijay Kumar^*

来源：Indian Journal of Experimental Biology, 2015, 53(11): 714-718.

• Genetic polymorphisms
• IFN-alpha
• Interferons
• Interleukins
• IL-10
• IL-12
• TNF-alpha

Systemic lupus erythematosus (SLE) is a complex autoimmune disorder involving genetic, epigenetic and environmental factors and has higher incidence in women. In this study, we explored the association of estrogen receptor 1 (ESR1) rs2234693 (PvuII) and rs9340799 (XbaI)polymolphisms with susceptibility to SLE. PCR-RFLP and ELISA were used for genetic analysis and determination of specific autoantibodies, respectively. The univariate analysis showed no independent association of rs2234693 (OR: 1.14, 95% CI: 0.87 - 1.49, p = 0.36) and rs9340799 (OR: 0.87, 95% CI: 0.66-1.14, p = 0.34). The haplotype analysis using SHEsis platform revealed strong linkage disequilibrium between these two polymorphisms (D': 0.81, r(2): 0.55). Among the four haplotype groups, the C-A haplotype (rs2234693-rs9340799) was strongly associated with the risk for SLE (OR: 2.10, 95% CI: 1.32 - 3.34, p = 0.001). The homozygous variant genotype of rs2234693 exhibited elevated TNF-alpha and depleted IFN-alpha, while the effects of rs9340799 were contradictory. The wild genotype of rs2234693 exhibited lower levels of IL-12 with number of rs9340799 variant alleles pronouncing this effect. From this study, it is concluded that the ESR1 haplotypes may influence the Th2 cytokine profile and susceptibility to SLE among the South Indians.

• 出版日期2015-11