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. 1996 Dec;44(6):607-14.
doi: 10.1046/j.1365-3083.1996.d01-355.x.

Interleukin-10 suppresses the development of collagen type II-induced arthritis and ameliorates sustained arthritis in rats

S Persson  1 , A Mikulowska, S Narula, A O'Garra, R Holmdahl
Affiliations

Interleukin-10 suppresses the development of collagen type II-induced arthritis and ameliorates sustained arthritis in rats

S Persson et al. Scand J Immunol. 1996 Dec.

Abstract

The collagen-induced arthritis model in DA rats induced with homologous rat type II collagen was chosen to determine the therapeutic capacity and effects on autoimmunity by IL-10. Systemic IL-10 treatment (100 or 10 micrograms/day) with mini-osmotic pumps during the periods of arthritis onset (days 12-20 after immunization) decreased the frequency of arthritis and delayed the onset and reduced the severity of arthritis in the few rats that eventually developed arthritis. Concomitantly, levels of autoantibodies to CII were reduced. To test the activity on established arthritis, IL-10 was administered subcutaneously in the paws. This treatment reduced the swelling but did not block the arthritis process. The effective treatment required 100 micrograms of IL-10 every 12th hour while 50 micrograms of IL-10 had little effect, although a tendency of reduced paw swelling was observed. Surprisingly, therapeutic IL-10 treatment led to higher serum levels of autoantibodies to CII. The highest doses of IL-10 (100 micrograms) did not show any apparent toxic effects when given locally or systematically. Taken together, this study suggests that IL-10 is a candidate for treatment of rheumatoid arthritis.

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