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J Immunol. 2012 Feb 15;188(4):1708-16. doi: 10.4049/jimmunol.1102654. Epub 2012 Jan 16.

Human γδ T lymphocytes are licensed for professional antigen presentation by interaction with opsonized target cells.

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1
Molecular Haematology and Cancer Biology, University College London Institute of Child Health, London WCN1 1EH, UK.

Abstract

Activated human blood γδ T cells have also been previously demonstrated to behave as professional APCs, although the processes that control APC function have not been characterized. n this study, we show that the acquisition of potent APC function by human blood γδ T cells is achieved after physical interaction with an Ab-coated target cell, a process that we refer to as licensing. In cancer models, licensing of γδ T cells by tumor-reactive mAbs promotes the uptake of tumor Ags and professional presentation to tumor-reactive αβ T cells. We propose that licensing by Ab is a mechanism whereby the adaptive properties of γδ T cells are induced by their innate functions in a spatially and temporally controlled manner.

PMID:
22250090
DOI:
10.4049/jimmunol.1102654
[Indexed for MEDLINE]
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