Cutting edge: CD1d restriction and Th1/Th2/Th17 cytokine secretion by human Vδ3 T cells.
Cutting edge: CD1d restriction and Th1/Th2/Th17 cytokine secretion by human Vδ3 T cells.
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DOI:
10.4049/jimmunol.1300121
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发表时间:
2013-07-01
期刊:
影响因子:
--
通讯作者:
Doherty DG
中科院分区:
文献类型:
--
作者:
Mangan BA;Dunne MR;O'Reilly VP;Dunne PJ;Exley MA;O'Shea D;Scotet E;Hogan AE;Doherty DG
Human γδ T cells expressing the Vδ3 TCR comprise a minor lymphocyte subset in blood but are enriched in liver and in patients with some chronic viral infections and leukemias. We analysed the frequencies, phenotypes, restriction elements and functions of fresh and expanded peripheral blood Vδ3 T cells. Vδ3 T cells accounted for ~0.2% of circulating T cells, included CD4+, CD8+ and CD4−CD8− subsets, and variably expressed CD56, CD161, HLA-DR and NKG2D, but not NKG2A nor NKG2C. Vδ3 T cells were sorted and expanded by mitogen stimulation in the presence of IL-2. Expanded Vδ3 T cells recognised CD1d, but not CD1a, CD1b nor CD1c. Upon activation, they killed CD1d+ target cells, released Th1, Th2 and Th17 cytokines and induced maturation of dendritic cells into APCs. Thus, Vδ3 T cells are glycolipid-reactive T cells with distinct antigen specificities but functional similarities to natural killer T cells.
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