Propagation and regulation of systemic autoimmunity by gammadelta T cells.

  • Peng S
  • Madaio M
  • Hayday A
  • et al.
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Abstract

Although many studies have demonstrated a pathogenic role for alphabeta T cells in murine lupus, little work has addressed gammadelta T cells. Here, the roles of alphabeta and gammadelta T cells in the pathogenesis of systemic autoimmunity were investigated by generating lupus-prone mice deficient in alphabeta T cells and/or gammadelta T cells. Mice deficient in gammadelta T cells developed an exacerbated disease phenotype compared with that of T cell-intact mice, consisting of augmented hypergammaglobulinemia and autoantibody production, more severe renal disease, and increased mortality, associated with a polyclonal expansion of conventional CD4+ alphabeta T cells. Conversely, alphabeta T cell-deficient animals developed a partial lupus syndrome, characterized by isotype-specific hypergammaglobulinemia, incompletely penetrant autoantibodies, and mild immune complex renal disease, all of which were driven by gammadelta T cell-dependent help. These data indicate that gammadelta T cells participate in both the regulation and the propagation of murine lupus.

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Peng, S. L., Madaio, M. P., Hayday, A. C., & Craft, J. (1996). Propagation and regulation of systemic autoimmunity by gammadelta T cells. The Journal of Immunology, 157(12), 5689–5698. https://doi.org/10.4049/jimmunol.157.12.5689

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