PT - JOURNAL ARTICLE AU - M A French AU - G Harrison AU - C A Penning AU - J Cunningham AU - P Hughes AU - N R Rowell TI - Serum immune complexes in systemic sclerosis: relationship with precipitating nuclear antibodies. AID - 10.1136/ard.44.2.89 DP - 1985 Feb 01 TA - Annals of the Rheumatic Diseases PG - 89--92 VI - 44 IP - 2 4099 - http://ard.bmj.com/content/44/2/89.short 4100 - http://ard.bmj.com/content/44/2/89.full SO - Ann Rheum Dis1985 Feb 01; 44 AB - In a comparative study of antinuclear antibodies (ANA) and immune complexes in the serum of 43 patients with systemic sclerosis (SS) ANA were detected by indirect immunofluorescence on Hep 2 cells and/or double immunodiffusion in 90% of patients, while immune complex assays were positive in 32% of patients. The immune complex assays were positive only in sera containing antibodies to Scl 70, n-RNP, Ro, and La. The presence of immune complexes in SS sera is therefore related to ANA specificity. This might explain the variable findings of several previous studies of immune complexes in SS.