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Trends Immunol. 2008 Jul;29(7):337-42. doi: 10.1016/j.it.2008.04.002. Epub 2008 May 29.

Revival of CD8+ Treg-mediated suppression.

Author information

1
Laboratory of Autoimmunity, Torrey Pines Institute for Molecular Studies, San Diego, CA 92121, USA.

Abstract

Despite their first recognition almost 40 years ago, CD8(+) 'suppressor' T cells remain poorly characterized. Recent studies of these lymphocytes, now popularly referred to as regulatory CD8(+) T cells (CD8(+) Tregs), have helped clarify their important role in the regulation of autoimmune disease. Here, we review progress related to the identification, phenotype and function of CD8(+) Tregs. We also focus on a newly described subset, CD8alphaalpha(+)TCRalphabeta(+) Tregs, which in mice recognize a T-cell receptor-derived peptide in the context of the class Ib major histocompatibility complex molecule Qa-1. These Tregs target only activated T cells and complement the suppression provided by CD4(+)Foxp3(+) Tregs. Investigations leading to the detailed identification, expansion, maintenance and function of CD8alphaalpha(+) Tregs should result in new therapeutic strategies for human inflammatory diseases.

PMID:
18514574
DOI:
10.1016/j.it.2008.04.002
[Indexed for MEDLINE]

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