Cutting Edge: Attenuated Experimental Autoimmune Encephalomyelitis in Eta-1/Osteopontin-Deficient Mice

  • Jansson M
  • Panoutsakopoulou V
  • Baker J
  • et al.
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Abstract

Recent studies indicate that early T lymphocyte activation 1 (Eta-1), also known as osteopontin, is a cytokine contributing to the development of Th1 immunity. In the present report, the role of Eta-1 in experimental autoimmune encephalomyelitis (EAE), a disease associated with Th1 immunity, was examined by analysis of disease progression in Eta-1-deficient (Eta-1−/−) mice. Although incidence and onset of peptide-induced EAE were found to be similar in Eta-1−/− and Eta-1+/+ mice, Eta-1−/− mice displayed significantly lower mean maximal clinical score and faster recovery without spontaneous relapses. Accordingly, decreased inflammatory infiltration and demyelination were observed in the spinal cords of Eta-1−/− mice. Furthermore, in comparison to Eta-1+/+, Eta-1−/− CD4+ T cells had reduced expression of IFN-γ and TNF-α upon ex vivo restimulation. Taken together, these results suggest that Eta-1 may sustain autoimmune responses by assisting in maintenance of Th1 immunity during EAE.

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APA

Jansson, M., Panoutsakopoulou, V., Baker, J., Klein, L., & Cantor, H. (2002). Cutting Edge: Attenuated Experimental Autoimmune Encephalomyelitis in Eta-1/Osteopontin-Deficient Mice. The Journal of Immunology, 168(5), 2096–2099. https://doi.org/10.4049/jimmunol.168.5.2096

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