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    J Immunol. 2008 Dec 15;181(12):8761-6.

    Expanded double negative T cells in patients with systemic lupus erythematosus produce IL-17 and infiltrate the kidneys.

    Crispín JC, Oukka M, Bayliss G, Cohen RA, Van Beek CA, Stillman IE, Kyttaris VC, Juang YT, Tsokos GC.

    Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA.

    Double negative (DN) T cells are expanded in patients with systemic lupus erythematosus (SLE) and stimulate autoantibody production as efficiently as CD4(+) T cells. In this study, we demonstrate that DN T cells from patients with SLE produce significant amounts of IL-17 and IFN-gamma, and expand when stimulated in vitro with an anti-CD3 Ab in the presence of accessory cells. Furthermore, IL-17(+) and DN T cells are found in kidney biopsies of patients with lupus nephritis. Our findings establish that DN T cells produce the inflammatory cytokines IL-17 and IFN-gamma, and suggest that they contribute to the pathogenesis of kidney damage in patients with SLE.

    PMID: 19050297 [PubMed - indexed for MEDLINE]

    PMCID: PMC2596652

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