Administration of dehydroepiandrosterone sulfate retards onset but not progression of autoimmune disease in NZB/W mice

Autoimmunity
S D NortonB A Araneo

Abstract

NZB/W mice spontaneously develop an autoimmune disease characterized by the formation of anti-DNA antibodies and subsequent development of a fatal immune complex-mediated glomerulonephritis. Treatment of NZB/W F1 female mice with DHEAS, a precursor of DHEA, beginning at 2 months of age delayed the onset of autoimmune disease and prolonged survival. Animals treated with DHEAS beginning at 2 months of age had significantly lower anti-dsDNA serum antibody titers when compared to controls. Interestingly, DHEAS treatment had no effect on titers of anti-phosphatidylcholine (PtC) "natural" antibodies. Serum levels of IL-10, which increase with onset of disease, were also significantly reduced in mice treated with DHEAS beginning at 2 months of age. In contrast, if DHEAS treatment was started at 6 months of age, there was no effect on mortality rates. In addition, treatment of animals with DHEAS beginning at 6 months of age did not lower serum titers of anti-dsDNA and had no ameliorating effect on anti-PtC antibody production. Serum levels of IL-10 were also unaffected in mice treated with DHEAS beginning at 6 months of age. Together, these data suggest that parenteral administration of DHEAS is effective at delaying autoimmune disease...Continue Reading

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