V gamma 9V delta 2 TCR-activation by phosphorylated antigens requires butyrophilin 3 A1 (BTN3A1) and additional genes on human chromosome 6

Riano, Felipe and Karunakaran, Mohindar M. and Starick, Lisa and Li, Jianqiang and Scholz, Claus J. and Kunzmann, Volker and Olive, Daniel and Amslinger, Sabine and Herrmann, Thomas (2014) V gamma 9V delta 2 TCR-activation by phosphorylated antigens requires butyrophilin 3 A1 (BTN3A1) and additional genes on human chromosome 6. EUROPEAN JOURNAL OF IMMUNOLOGY, 44 (9). pp. 2571-2576. ISSN 0014-2980, 1521-4141

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Abstract

Pyrophosphorylated metabolites of isoprenoid-biosynthesis (phosphoantigens, PAgs) activate V gamma 9V delta 2 T cells during infections and trigger antitumor activity. This activation depends on expression of butyrophilin 3 A1 (BTN3A1) by antigen-presenting cells. This report defines the minimal genetic requirements for activation of V gamma 9V delta 2 T cells by PAgs and mAb 20.1. We compared PAg-presentation by BTN3A1-transduced CHO hamster cells with that of CHO cells containing the complete human chromosome 6 (Chr6). BTN3A1 expression alone was sufficient for activation of V gamma 9V delta 2 T-cell receptor transductants by mAb 20.1., while activation by PAgs also required the presence of Chr6. We take this finding as evidence that gene(s) on Chr6 in addition to BTN3A1 are mandatory for PAg-mediated activation of V gamma 9V delta 2 T cells. This observation is important for the design of animal models for PAg-mediated immune responses and provokes speculations about the analogy between genes controlling PAg presentation and MHC-localized genes controlling peptide-antigen presentation.

Item Type: Article
Uncontrolled Keywords: V-GAMMA-2V-DELTA-2 T-CELLS; MEVALONATE PATHWAY; TUMOR-CELLS; PCR PRIMERS; RECOGNITION; RECEPTOR; STIMULATION; HYBRIDS; Antigen presentation/processing; Antigen receptors; gamma delta T cell; T cells; TCR
Subjects: 500 Science > 540 Chemistry & allied sciences
Divisions: Chemistry and Pharmacy > Institut für Organische Chemie
Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Dr. Sabine Amslinger
Depositing User: Dr. Gernot Deinzer
Date Deposited: 19 Aug 2019 12:54
Last Modified: 19 Aug 2019 12:54
URI: https://pred.uni-regensburg.de/id/eprint/9618

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