Subset-specific, uniform activation among V gamma 6/V delta 1+ gamma delta T cells elicited by inflammation

J Leukoc Biol. 2004 Jan;75(1):68-75. doi: 10.1189/jlb.0703326. Epub 2003 Oct 2.

Abstract

The V gamma 6/V delta 1(+) cells, the second murine gamma delta T cell subset to arise in the thymus, express a nearly invariant T cell receptor (TCR), colonize select tissues, and expand preferentially in other tissues during inflammation. These cells are thought to help in regulating the inflammatory response. Until now, V gamma 6/V delta 1(+) cells have only been detectable indirectly, by expression of V gamma 6-encoding mRNA. Here, we report that 17D1, a monoclonal antibody, which detects the related epidermis-associated V gamma 5/V delta 1(+) TCR, will also bind the V gamma 6/V delta 1(+) cells if their TCR is first complexed to an anti-C delta antibody. Features of this special condition for recognition suggest the possibility that an alternate structure exists for the V gamma 6/V delta 1 TCR, which is stabilized upon binding to the anti-C delta antibody. Using the 17D1 antibody as means to track this gamma delta T cell subset by flow cytometry, we discovered that the response of V gamma 6/V delta 1(+) cells during inflammation often far exceeds that of other subsets and that the responding V gamma 6/V delta 1(+) cells display a strikingly uniform activation/memory phenotype compared with other gamma delta T cell subsets.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Antibodies, Monoclonal
  • Epidermis / immunology
  • Hybridomas / immunology
  • Inflammation / immunology*
  • Listeria monocytogenes
  • Listeriosis / immunology
  • Mice
  • Mice, Inbred C57BL
  • Mice, Transgenic
  • Receptors, Antigen, T-Cell, gamma-delta / analysis
  • Receptors, Antigen, T-Cell, gamma-delta / genetics*
  • Receptors, Antigen, T-Cell, gamma-delta / immunology*
  • Reference Values
  • T-Lymphocyte Subsets / immunology*
  • T-Lymphocytes / immunology*

Substances

  • Antibodies, Monoclonal
  • Receptors, Antigen, T-Cell, gamma-delta