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Quantifying and Imaging NY-ESO-1/LAGE-1-Derived Epitopes on Tumor Cells Using High Affinity T Cell Receptors
Author(s) -
Marco A. Purbhoo,
Deborah H. Sutton,
Joanna E. Brewer,
Rebecca E. Mullings,
Maxine E. Hill,
Tara Mahon,
Julia Karbach,
Elke Jäger,
Brian Cameron,
Nikolai M. Lissin,
Paresh Vyas,
JiLi Chen,
Vincenzo Cerundolo,
Bent K. Jakobsen
Publication year - 2006
Publication title -
the journal of immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.737
H-Index - 372
eISSN - 1550-6606
pISSN - 0022-1767
DOI - 10.4049/jimmunol.176.12.7308
Subject(s) - epitope , context (archaeology) , t cell receptor , human leukocyte antigen , antigen presentation , biology , receptor , antigen , t cell , microbiology and biotechnology , chemistry , immune system , immunology , biochemistry , paleontology
Presentation of intracellular tumor-associated Ags (TAAs) in the context of HLA class I molecules offers unique cancer-specific cell surface markers for the identification and targeting of tumor cells. For most peptide Ags, the levels of and variations in cell surface presentation remain unknown, yet these parameters are of crucial importance when considering specific TAAs as targets for anticancer therapy. Here we use a soluble TCR with picomolar affinity for the HLA-A2-restricted 157-165 epitope of the NY-ESO-1 and LAGE-1 TAAs to investigate presentation of this immunodominant epitope on the surface of a variety of cancer cells. By single molecule fluorescence microscopy, we directly visualize HLA-peptide presentation for the first time, demonstrating that NY-ESO-1/LAGE-1-positive tumor cells present 10-50 NY-ESO-1/LAGE-1(157-165) epitopes per cell.

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