Human Vδ1-T cells regulate immune responses by targeting autologous immature dendritic cells

Hum Immunol. 2011 Jan;72(1):32-6. doi: 10.1016/j.humimm.2010.10.011. Epub 2010 Oct 28.

Abstract

Recent studies suggest that tissue resident Vδ1-T cells may downregulate immune responses in human beings. However, the function of peripheral blood Vδ1-T cells and their mechanisms of action remain largely unknown because of their limited numbers and the difficulties encountered in expanding these cells. In this study, we provide direct evidence demonstrating that peripheral human Vδ1-T cells can abrogate adaptive immune responses by direct killing of autologous dendritic cells through a perforin-mediated pathway. These findings advance our basic understanding of this unique T-cell subset.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • CD4-Positive T-Lymphocytes / immunology
  • Cell Communication / immunology
  • Cytotoxicity, Immunologic
  • Dendritic Cells / cytology
  • Dendritic Cells / immunology*
  • Down-Regulation / immunology
  • Humans
  • Immunity, Cellular / immunology*
  • Perforin / metabolism
  • T-Lymphocyte Subsets / immunology*

Substances

  • Perforin