## Abstract Sera and synovial fluids of patients with rheumatoid arthritis were studied for immune complexes by means of the anti‐antibody inhibition test; approximately 40% of these specimens were shown to contain immune complexes. To study the nature of antigens participating in the formation of
Circulating immune complexes and antinuclear antibodies in juvenile rheumatoid arthritis
✍ Scribed by R. D. Rossen; E. J. Brewer; D. A. Person; J. W. Templeton; M. D. Lidsky
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- English
- Weight
- 475 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0004-3591
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✦ Synopsis
Abstract
Materials with the Clq binding properties of soluble immune complexes (IC) were found in sera from 11 of 51 consecutive (22%) children with juvenile rheumatoid arthritis (JRA) and in 17 of 20 adults with active sero‐positive rheumatoid arthritis (RA). IC appeared more frequently in children with systemic onset disease whereas antinuclear antibody (ANA) was found more frequently in sera from those with pauciarticular disease. Only 3 JRA sera contained anti‐immunoglobulin (rheumatoid factor); those 3 also had high Clq binding activities. Seven of 50 patients (14%) carried HLA‐B27 but B27 was not associated with high Clq binding activity or presence of ANA. The presence of free ANA more frequently in children with mild disease and IC more frequently in children with relatively severe disease suggests that children with systemic JRA may have a relative defect in antibody‐forming capacity or reticuloendothelial function which results in decreased clearance of circulating IC. Alternatively, systemic, polyarticular, and pauciarticular JRA may represent a spectrum of clinically similar diseases resulting from different etiologic agents.
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