Single-nucleotide polymorphisms influence the promoter activities of systemic lupus erythematosus-associated genes
Jinjun Qiu1, Xiaoming Qin2, Jinli Wen3
1Department of General Practice, Pingshan District People's Hospital, Shenzhen, 518118, Guangdong, China.
Abstract:
Systemic lupus erythematosus (SLE) is a protypical autoimmune disease and genetic factors play important roles in its pathogenesis. Since present SLE susceptibility loci are mainly studied through meta-analysis of genome-wide association study, we performed promoter activity analysis to examine the biological functions of SLE-associated single-nucleotide polymorphisms (SNPs). We found at SNP positions rs1341239, rs1800795, rs1800796, rs1800872, rs1800871, rs187238, rs360719, rs8178822, rs3761549, different alleles influenced respective promoter activities in different manners, and the effects also appeared under glucocorticoid treatment. In addition, some SNPs showed strong correlations with levels of respective serum factors, but in most cases the associations were only demonstrated in SLE individuals. Our study has further disclose the functional roles of SLE-associate SNPs in SLE pathogenesis.
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