| Literature DB >> 16140789 |
Robert Thimme1, Victor Appay, Marie Koschella, Elisabeth Panther, Evelyn Roth, Andrew D Hislop, Alan B Rickinson, Sarah L Rowland-Jones, Hubert E Blum, Hanspeter Pircher.
Abstract
The killer cell lectin-like receptor G1 (KLRG1) is a natural killer cell receptor expressed by T cells that exhibit impaired proliferative capacity. Here, we determined the KLRG1 expression by virus-specific T cells. We found that repetitive and persistent antigen stimulation leads to an increase in KLRG1 expression of virus-specific CD8+ T cells in mice and that virus-specific CD8+ T cells are mostly KLRG1+ in chronic human viral infections (human immunodeficiency virus, cytomegalovirus, and Epstein-Barr virus) but not in resolved infection (influenza virus). Thus, by using KLRG1 as a T-cell marker, our results suggest that the differentiation status and function of virus-specific CD8+ T cells are directly influenced by persistent antigen stimulation.Entities:
Mesh:
Substances:
Year: 2005 PMID: 16140789 PMCID: PMC1212638 DOI: 10.1128/JVI.79.18.12112-12116.2005
Source DB: PubMed Journal: J Virol ISSN: 0022-538X Impact factor: 5.103