Inhibition of follicular T-helper cells by CD8+ regulatory T cells is essential for self tolerance

Hye-Jung Kim, Bert Verbinnen, Xiaolei Tang, Linrong Lu and Harvey Cantor ()
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Hye-Jung Kim: Dana-Farber Cancer Institute
Bert Verbinnen: Dana-Farber Cancer Institute
Xiaolei Tang: Dana-Farber Cancer Institute
Linrong Lu: Institute of Immunology, Zhejiang University, School of Medicine
Harvey Cantor: Dana-Farber Cancer Institute

Nature, 2010, vol. 467, issue 7313, 328-332

Abstract: Role for CD8+ regulatory T cells in self-tolerance Analysis of the immune system has defined a subset of CD4+ T cells, termed CD4+ Treg, that can inhibit excessive inflammatory immune responses. However, no T cells genetically programmed to inhibit autoantibody formation and systemic-lupus-erythematosus-like disease have so far been defined. A mechanism fitting that description has now been identified in mice. A subset of CD8+ T cells (CD8+ Treg) is shown to prevent autoantibody formation and maintain self-tolerance in a process that involves recognition of Qa-1 peptide ligands expressed at the surface of follicular helper T cells. A detailed understanding of this aspect of immune-system regulation could lead to new approaches for the treatment of systemic lupus erythematosus and other autoimmune disorders.

Date: 2010
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DOI: 10.1038/nature09370

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