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  • Title: Concomitant reduction of disease activity and IL-10 secreting peripheral blood mononuclear cells during immunoadsorption in patients with active systenic lupus erythematosus.
    Author: Willeke P, Schotte H, Erren M, Schlüther B, Mickholz E, Domschke W, Gaubitz M.
    Journal: Cell Mol Biol (Noisy-le-grand); 2002 May; 48(3):323-9. PubMed ID: 12030438.
    Abstract:
    In patients with systemic lupus erythematosus (SLE) increased secretion of interleukin 10 (IL-10) by peripheral blood mononuclear cells (PBMC) is associated with overproduction of pathogenic autoantibodies. Herein we report the effect of immunoadsorption (IA) on the number of IL-10 secreting PBMC in patients with active SLE. Three courses of IA were performed in 9 patients with active SLE (SLAM 15,9+/-2,9). Each course consisted of 3 treatments on consecutive days. ELISPOT assay using IL-10 specific monoclonal antibodies was used to determine the number of IL- 10 secreting PBMC before and after each treatment. Eleven healthy, age and sex matched volunteers served as controls. Anti-ds-DNA autoantibodies were reduced to 67+/-14% after the treatment period. Before therapy patients showed significantly more spontaneously IL-10 secreting PBMC than controls (p<0.01). After the first course a significant reduction of the IL-10 secreting cells to normal levels was observed which paralleled the development of disease activity (p<0.01). Our results demonstrate a concomitant reduction of disease activity, anti-ds-DNA antibodies and the number of IL-10 secreting PBMC. The production of anti-ds-DNA antibodies and IL-10 are interdependent. Thus we conclude that IA is beneficial in SLE by depletion of these pathogenic antibodies which may lead to a reduced IL-10 secretion in vivo.
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