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• W2065570876 startingPage "e6031" @default.
• W2065570876 abstract "Systemic lupus erythematosus (SLE) is an autoimmune disease of unknown cause characterized by expansion of autoreactive lymphocytes. Regulatory T cells (T(regs)) are a component of the normal immune system and contribute to the maintenance of peripheral tolerance. T(reg) abnormalities have been associated with several autoimmune diseases and there is interest in the role of T(regs) in SLE. We previously demonstrated that transfer of expanded CD4(+)CD25(+)CD62L(HI) T(regs) slows the development of lupus in (NZBxNZW)F(1) (B/W) mice. However in the absence of T(reg) specific surface antigens, cell purification remains a compromise between the breadth and purity of the population isolated. Importantly, purified populations always contain Foxp3(-) effector T cells (T(effs)) that theoretically could exacerbate autoimmunity in the recipient. Here we explore the impact of transferring the more comprehensive, but less pure T(reg) subset defined by CD4(+)CD25(+) expression on development of murine lupus. All cells were FACS sorted and expanded prior to adoptive transfer. Development of proteinuria and survival were measured. We found that exogenous expansion of CD4(+)CD25(+) cells produced a population containing 70-85% CD4(+)Foxp3(+)T(regs). Expanded T(regs) had higher CTLA-4 and Foxp3 expression, increased in vitro suppression capacity, and prolonged in vivo survival as compared to freshly isolated cells. Adoptive transfer of expanded CD4(+)CD25(+) T(regs) inhibited the onset of glomerulonephritis and prolonged survival in mice. Importantly the population of T(eff) contained within the adoptively transferred cells had reduced survival and proliferation capacity as compared to either co-transferred T(regs) or transferred T(effs) expanded in the absence of T(regs). These studies demonstrate that adoptive transfer of expanded CD4(+)CD25(+)Foxp3(+)T(regs) has the capacity to inhibit the onset of murine lupus and that this capacity is significant despite transfer of co-cultured T(eff) cells. These data indicate that when co-expanded with regulatory T cells, exogenously activated T(effs) from autoimmune patients may not pose a significant risk of promoting disease." @default.
• W2065570876 created "2016-06-24" @default.
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• W2065570876 creator A5080133980 @default.
• W2065570876 date "2009-06-24" @default.
• W2065570876 modified "2023-10-10" @default.
• W2065570876 title "Suppression of Glomerulonephritis in NZB/NZW Lupus Prone Mice by Adoptive Transfer of Ex Vivo Expanded Regulatory T Cells" @default.
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• W2065570876 doi "https://doi.org/10.1371/journal.pone.0006031" @default.
• W2065570876 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2696596" @default.
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