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Published in: Cancer Immunology, Immunotherapy 6/2007

01-06-2007 | Original Article

Individual Vγ2-Jγ1.2+ T cells respond to both isopentenyl pyrophosphate and Daudi cell stimulation: generating tumor effectors with low molecular weight phosphoantigens

Authors: Andrew M. Hebbeler, Cristiana Cairo, Jean Saville Cummings, C. David Pauza

Published in: Cancer Immunology, Immunotherapy | Issue 6/2007

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Abstract

Human Vγ2Vδ2 T cells exhibit T cell receptor-dependent, MHC-unrestricted recognition of antigen and play important roles in tumor and pathogen immunity. To characterize antigen recognition by the Vγ2Vδ2 TCR, we used the combined approach of spectratyping and CDR3 sequence analysis that measures changes in the TCR repertoire before and after stimulation with a phosphoantigen (isopentenyl pyrophosphate) or an irradiated tumor cell line (Daudi B lymphoma). Here we describe common Vγ2 chains that are substantially involved in the response to both phosphoantigens and tumor cells. The recognition properties of common Vγ2 chains explains the observation that Vγ2Vδ2 T cells expanded by phosphoantigen stimulation specifically recognize and kill some but not all tumor cell lines. Our studies further justify efforts to stimulate tumor immunity by administering low molecular weight phosphoantigens and boosting the frequency and tumor effector functions of circulating Vγ2Vδ2 T cells.
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Metadata
Title
Individual Vγ2-Jγ1.2+ T cells respond to both isopentenyl pyrophosphate and Daudi cell stimulation: generating tumor effectors with low molecular weight phosphoantigens
Authors
Andrew M. Hebbeler
Cristiana Cairo
Jean Saville Cummings
C. David Pauza
Publication date
01-06-2007
Publisher
Springer-Verlag
Published in
Cancer Immunology, Immunotherapy / Issue 6/2007
Print ISSN: 0340-7004
Electronic ISSN: 1432-0851
DOI
https://doi.org/10.1007/s00262-006-0235-6

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