Loss of the surface antigen 3G11 characterizes a distinct population of anergic/regulatory T cells in experimental autoimmune encephalomyelitis

The Journal of Immunology : Official Journal of the American Association of Immunologists
Guang-Xian ZhangAbdolmohamad Rostami

Abstract

T cell anergy is an important mechanism in the induction of peripheral tolerance against autoimmune diseases, yet no surface marker unique to anergic T cells in these diseases has been identified. In this study we induced in vivo anergy by i.v. tolerance against experimental autoimmune encephalomyelitis in myelin basic protein TCR transgenic mice, and showed that the hyporesponsiveness of autoantigen-reactive T cells from tolerized mice was associated with a dramatic loss of 3G11, a cell surface molecule on the surface of CD4+ T cells. Purified 3G11-CD4+ T cells lost autoantigen-induced proliferation and IL-2 production, whereas 3G11+CD4+ T cells retained responsiveness. Furthermore, 3G11- T cells actively suppressed proliferation and Th1 cytokine production of 3G11+ T cells and splenocytes of nontolerized mice. Active suppression by 3G11- T cells was at least partially due to soluble immunoregulatory factors, including IL-10. The T regulatory property of 3G11- T cells was confirmed in vivo because the transfer of purified 3G11- T cells effectively suppressed clinical experimental autoimmune encephalomyelitis. We conclude that loss of the surface molecule 3G11 characterizes a distinct population of anergic/regulatory T cells. T...Continue Reading

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Citations

Oct 2, 2015·Clinical & Experimental Neuroimmunology·Elisabeth R MariAbdolmohamad Rostami
Nov 6, 2020·Science Translational Medicine·Giacomo CasellaAbdolmohamad Rostami
Jul 14, 2010·Journal of the Neurological Sciences·Zhao ZhaoAbdolmohamad Rostami

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