摘要
目的制定系统性红斑狼疮(SLE)患者红细胞补体受体Ⅰ型(CR1)天然免疫功能低下分型标准。方法采用聚合酶链反应(PCR)加HindⅢ酶切法测定红细胞CR1密度相关基因多态性,在32例SLE患者和48例正常人中用红细胞CR1花环(RBC-CR1R)及红细胞免疫复合物花环(RBC-ICR)测定红细胞CR1活性。结果16例活动期SLE患者中发现10例红细胞CR1密度相关基因组高表达型(HH型)占62.5%,而稳定期16例中有13例,占81.3%。这23例HH型SLE患者红细胞CR1活性(RBC-C3bR16.34±3.41,RBC-ICR10.17±3.02)比HL型(中表达型)、LL型(低表达型)高(8例HL型:RBC-C3bR13.50±4.50,RBC-ICR6.00±3.07和1例LL型:RBC-C3bR4.00,RBC-IC0.00),但与48例正常人明显不同(RBC-C3bR18.60±3.80,RBC-ICR4.50±1.50,P<0.01)。结论根据红细胞CR1基因型与CR1活性测定结果可将SLE患者红细胞CR1活性低下分为原发型、继发型和混合型,这种CR1免疫活性的差异可反映疾病的活动状况。
Objective To study complement receptor typeⅠ(CR1)activity of erythrocytes in pa-tients with SLE.Methods Using polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP),CR1rosette(RBC-CR1R)and immuno-complex rosette(RBC-ICR)on red cell,the ery-throcyte complement receptor I type(ECR1)genomic density polymorphism(HH type,HL type,LL type)and erythrocyte CR1immune activity were determined in32patients with SLE and in48normal individuals.Results It was found that HH type rate of ECR1density polymorphism in patients with active SLE was significantly lower(10/16,62.5%)than that(13/16,81.3%)in patients with stable SLE.The level of CR1immune activity in HH type was significantly higher than that in HL,LL type of SLE,and significantly dif-ferent from that in48normal individuals(P<0.01).Conclusions There are three types of hypofunction in CR1immune activity in SLE patients:primary type,secondary type and mixed type,which may reflect the disease activity.
出处
《中华皮肤科杂志》
CAS
CSCD
北大核心
2003年第7期391-393,共3页
Chinese Journal of Dermatology
