系统性红斑狼疮患者血清中可溶性人类白细胞抗原-G表达水平的研究

目的 探讨血清可溶性人类白细胞抗原(HLA)-G(sHLA-G)在系统性红斑狼疮(SLE)患者中表达水平及与疾病活动度相关性.方法 采用酶联免疫吸附试验(ELISA)方法检测58例SLE患者与60名健康人血清sHLA-G水平.结果 SLE患者血清sHLA-G水平(120±92)ng/ml显著高于健康对照组(35±33)ng/ml(P＜0.01);SLE活动期组血清sHLA-G水平(170±70)ns/mJ显著高于SLE缓解期组血清sHLA-G水平(95±88)ng/ml(P＜0.01);血清sHLA-G水平与SLEDAI呈正相关(r=0.30,P=0.01);与抗双链DNA(dsDNA)、C3、C4及抗核抗体滴度无显著相关性(P＞0.05).结论 SLE患者血清中sHLA-G表达增高,且与疾病活动度呈正相关,sHLA-G在SLE疾病发生、发展中可能发挥了一定的作用.

Expression of serum sHLA-G in systemic lupus erythematosus

Objective To investigate the expression of serum sHLA-G in systemic lupus erythematosus (SLE) patients and the association with the disease activity.Methods The serum concentration of sHLA-G in SLE patients and healthy controls was measured with enzyme-linked immunosorbent assay.Results Significant higher sHLA-G levels were detected in patients of SLE than control group (P＜0.01),The serum concentrations of sHLA-G in active SLE patients were markedly higher than stable SLE patients (P＜0.01).The expression level of sHLA-G showed positive correlations with SLE activity index (SLEDAI)(r=0.30,P=0.01).There was no correlation between sHLA-G levels and serum concentration of Anti-dsDNA,C3,C4 and Anti-ANA in SLE patients (P＞0.05).Conclusion The level of serum sHLA-G is significantly increased in SLE patients.Positive correlations are observed between sHLA-G levels and SLEDAI.These data indicated that sHLA-G may play certain roles in the pathogenesis and progress in SLE.