【摘要】 目的了解抗皮肤基底膜带(BMZ)抗体在系统性红斑狼疮(SLE)患者循环中的存在情况,探讨其与临床的相关性。方法采用间接免疫荧光法检测70例SLE患者血清抗BMZ抗体,并分析其与SLE的临床表现、免疫指标的相关性。结果47例(67%) SLE患者存在循环抗BMZ抗体,其中IgG>IgM>IgA;抗体主要结合于盐裂皮肤的表皮侧,少数可结合于真皮侧或表、真皮两侧;伴皮肤损害的SLE患者循环抗BMZ抗体阳性率明显高于无皮肤损害者(P<0.05);病情处于活动期或伴肾脏损害、关节炎、脱发、光敏感、抗dsDNA抗体阳性的SLE患者与病情处于稳定期或不伴以上临床表现、抗dsDNA抗体阴性的患者比较,其抗BMZ抗体的阳性率差异无显著性。结论SLE患者循环中存在较高发生率的抗BMZ抗体,具有抗体/抗原的异质性;抗BMZ抗体的出现与SLE皮肤损害有关,而与病情活动、其他临床表现、抗dsDNA抗体无关;抗BMZ抗体可能参与了SLE皮肤损害的免疫机制。更多还原

【Abstract】 Objectives To detect anti-basement membrane zone(BMZ)antibodies in systemic lupus ery-thematosus(SLE)patients and to explore its association with clinical manifestations.Methods Anti-BMZ anti-bodies were examined by indirect immunofluorescence in the sera of70patients with SLE.The correlation between anti-BMZ antibodies and clinical data of SLE was analyzed.Results Anti-BMZ antibodies could be found in the sera of about70%SLE patients,including IgG,IgM,IgA.They predominantly bound to the epidermis,but also bound to the dermis or both.The positive rate of anti-BMZ antibodies was significantly higher in patients with skin lesions than that of patients without skin lesions.There is no significant difference between the two groups in ac-tive and remission,kidney involvement,arthritis,alopecia,photoallergy,positive anti-dsDNA antibodies and the posi-tive rate of anti-BMZ antibodies.Conclusion Anti-BMZ antibodies presents in the sera of SLE patients with high positive rate.It is correlated with the development of skin lesions of SLE patients,but not with the activity of SLE,other clinical manifestations and anti-dsDNA antibodies.Anti-BMZ antibodies may be involved in the pathogenlic mechanism of the development of skin lesions in SLE patients.更多还原