<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Fikri, Y</style></author><author><style face="normal" font="default" size="100%">Olivier J Denis</style></author><author><style face="normal" font="default" size="100%">Pastoret, P</style></author><author><style face="normal" font="default" size="100%">Nyabenda, J</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Purified bovine WC1+ gamma delta T lymphocytes are activated by staphylococcal enterotoxins and toxic shock syndrome toxin-1 superantigens: proliferation response, TCR V gamma profile and cytokines expression.</style></title><secondary-title><style face="normal" font="default" size="100%">Immunol Lett</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Immunol. Lett.</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Amino Acid Sequence</style></keyword><keyword><style  face="normal" font="default" size="100%">Animals</style></keyword><keyword><style  face="normal" font="default" size="100%">Bacterial Toxins</style></keyword><keyword><style  face="normal" font="default" size="100%">Base Sequence</style></keyword><keyword><style  face="normal" font="default" size="100%">Cattle</style></keyword><keyword><style  face="normal" font="default" size="100%">Cell Division</style></keyword><keyword><style  face="normal" font="default" size="100%">Cell Line</style></keyword><keyword><style  face="normal" font="default" size="100%">Cell Separation</style></keyword><keyword><style  face="normal" font="default" size="100%">Cytokines</style></keyword><keyword><style  face="normal" font="default" size="100%">Enterotoxins</style></keyword><keyword><style  face="normal" font="default" size="100%">Lymphocyte Activation</style></keyword><keyword><style  face="normal" font="default" size="100%">Mitogens</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular Sequence Data</style></keyword><keyword><style  face="normal" font="default" size="100%">Receptors, Antigen, T-Cell, gamma-delta</style></keyword><keyword><style  face="normal" font="default" size="100%">RNA, Messenger</style></keyword><keyword><style  face="normal" font="default" size="100%">Staphylococcus aureus</style></keyword><keyword><style  face="normal" font="default" size="100%">Superantigens</style></keyword><keyword><style  face="normal" font="default" size="100%">T-Lymphocyte Subsets</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2001</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2001 Jun 01</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">77</style></volume><pages><style face="normal" font="default" size="100%">87-95</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;In this study, the ability of purified bovine gammadelta T cells in vitro to be activated by superantigens (SAg) was investigated. Freshly isolated WC1(+) gammadelta T cells, in the presence of autologous glutaraldehyde-fixed or gamma-irradiated antigen presenting cells (APC) and IL-2, were incubated with staphylococcal enterotoxins A and B (SEA and SEB), and toxic shock syndrome toxin-1 (TSST-1). Both a proliferative response and the expression of particular T cell receptor genes of the gamma variable (TCR Vgamma) repertoire family were induced. Genes encoding TCR Vgamma1 and TCR Vgamma2 family, but not TCR Vgamma5 were detected. The cells also expressed cytokine transcripts, namely, those of IL-12, IFN-gamma and TNF-alpha, but not IL-2, IL-4, IL-6, IL-7 and IL-10. The activation and proliferation of freshly isolated gammadelta T cells by non-processed antigens required two signals, one originating from the APC and a second dependent on exogenous IL-2. Our results show that purified bovine WC1(+) gammadelta T cells could be driven to proliferate and to express a particular TCRVgamma profile in response to superantigen activation. The possible implication of cytokines expressed by bovine gammadelta T cells in immunopathogenesis is discussed.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/11377702?dopt=Abstract</style></custom1></record></records></xml>