系统性红斑狼疮与HLA-A等位基因相关性的研究

Association of HLA-A Alleles with Systemic Lupus Erythematosus

目的探讨系统性红斑狼疮(SLE)的发生与HLA-A等位基因间的关系。方法应用聚合酶链反应-序列特异性引物(PCR-SSP)的方法,对106例SLE患者和122例健康人进行HLA-A等位基因的检测。结果共发现19种等位基因,SLE患者中检出18种,对照组中检出15种。其中A*11等位基因与SLE呈强正相关(RR=2.4380,EF=0.1502,χ2=12.2440,P=0.0005,Pc=0.0095);A*01和A*24等位基因尽管P值均<0.05(分别为0.0498和0.0124),但Pc值都>0.05(分别为0.9462和0.2356)。结论A*11可能是云南汉族SLE的易感等位基因或与易感基因相连锁。

Objective To explore the potential association of HLA-A alleles and genetic susceptibility with systemic lupus erythematosus (SLE). Methods Polymerase chain reaction-sequence specific primer (PCR-SSP) was used to analyze the distribution of HLA-A alleles among 106 patients with systemic lupus erythematosus and 122 healthy persons. Results Nineteen out of twenty-four kinds of HLA-A alleles were found from the specimens, including 18 kinds in SLE specimens, and 15 kinds in control specimens. Among them, HLA-A*11 allele was positively associated with SLE (RR = 2.4380, EF = 0.1502, χ2 = 12.2440, P = 0.0005, Pc = 0.0095). For A*01 and A*24, although the P values were less than 0.05, the Pc values were more than 0.05 (0.9462 or 0.2356, respectively). Conclusions The results indicate that HLA-A*11 may be the susceptible allele or may be closely linked with the susceptible genes in Chinese SLE patients.