Journal
CELLULAR IMMUNOLOGY
Volume 228, Issue 1, Pages 54-65Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.cellimm.2004.04.001
Keywords
SLE; T cells; cytokines; cyclophosphamide; calorie restriction
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Funding
- NIA NIH HHS [AG20239, AG14541] Funding Source: Medline
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We compared the effects of calorie restriction (CR) and cyclophosphamide (CTX) on the progression of lupus nephritis and immunological changes in NZB/NZW F1 mice. Ad libitum (AL)/CTX and CR delayed onset of proteinuria and significantly decreased serum levels of anti-dsDNA, anti-histone, and circulating immune complex antibodies. CTX and CR prevented the increase in and activation of B cells, the decline in CD8(+) T cells, and maintained a higher proportion of naive CD4(+) and CD8(+) cells. MHC class I antigen and LFA-1 expression on CD8(+) T cells and MHC class II antigen on B cells were also decreased. AL/CTX and CR prevented the increase in production of IL-10 and up-regulated IL-2 production in T cells ex vivo. We concluded that both CR and CTX can delay the onset of autoimmune disease, in part by maintaining higher numbers of naive T cells and the immune responsiveness of T cells and decreasing the proportion of B cells. (C) 2004 Elsevier Inc. All rights reserved.
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