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  • Title: Prevention of murine lupus disease in (NZBxNZW)F1 mice by sirolimus treatment.
    Author: Ramos-Barrón A, Piñera-Haces C, Gómez-Alamillo C, Santiuste-Torcida I, Ruiz JC, Buelta-Carrillo L, Merino R, de Francisco AL, Arias M.
    Journal: Lupus; 2007; 16(10):775-81. PubMed ID: 17895299.
    Abstract:
    Sirolimus is a new immunosuppressive drug used to avoid allograft rejection. The immunosuppressive effect of sirolimus is due to inhibition of the mammalian target of rapamycin, necessary for the proliferation and clonal expansion of activated T-cells. Because T-cells play a central role in the pathogenesis of autoimmune disease developed in (NZBxNZW)F1 mice, we evaluated the therapeutic use of sirolimus in such mice. (NZBxNZW)F1 female mice received 1mg/kg/day of sirolimus from 12 to 37 weeks of age. The development of autoimmune disease was evaluated by measuring the serum levels of auto-antibodies (autoAbs) and their immunoglobulin isotypes, prevalence of glomerulonephritis and mortality rates. Sirolimus directly inhibited production of autoAbs, glomerular deposits of immunoglobulins and development of proteinuria; also the survival of these mice was prolonged. Our results demonstrate the beneficial effects of sirolimus in preventing the development of lupus disease in (NZBxNZW)F1 female mice.
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