Prolonged exposure to interferon-gamma (IFNγ) and the associated increased expression of the enzyme indoleamine 2,3-dioxygenase 1 (IDO1) create an intracellular shortage of tryptophan in the cancer cells, which stimulates ribosomal frameshifting and tryptophan to phenylalanine (W>F) codon reassignments during protein synthesis. Here, we investigated whether such neoepitopes can be useful targets of adoptive T cell therapy. Immunopeptidomic analyses uncovered hundreds of W>F neoepitopes mainly presented by the HLA-A∗24:02 allele. We identified a T cell receptor (TCRTMBIM6W>F.1) possessing high affinity and specificity toward TMBIM6W>F/HLA-A∗24:02, the inducible W>F neoepitope with the broadest expression across cancer cell lines. TCRTMBIM6W>F.1 T cells are activated by tryptophan-depleted cancer cells but not by non-cancer cells. Finally, we provide in vivo proof of concept for clinical application, whereby TCRMART1 T cells promote cancer cell killing by TCRTMBIM6W>F.1 T cells through the generation of W>F neoepitopes. Thus, neoepitopes arising from W>F substitution present shared and highly expressed immunogenic targets with the potential to overcome current limitations in adoptive T cell therapy.
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This monoclonal targets CD3
View all literature mentionsThis polyclonal secondary targets IgG (H+L)
View all literature mentionsThis monoclonal targets CD28
View all literature mentionsThis monoclonal targets Human HLA-A24
View all literature mentionsThis monoclonal targets HLA-A2
View all literature mentionsThis monoclonal targets CD20
View all literature mentionsThis monoclonal targets HLA-A, B, C
View all literature mentionsThis monoclonal targets TCR beta chain
View all literature mentionsThis monoclonal targets beta2-microglobulin
View all literature mentionsThis monoclonal targets CD137
View all literature mentionsThis monoclonal targets HLA-A24-Alexa Fluor®647
View all literature mentionsThis monoclonal targets CD8
View all literature mentionsThis monoclonal targets CD8
View all literature mentionsThis monoclonal targets CD3
View all literature mentionsThis monoclonal targets TCRβ
View all literature mentionsThis monoclonal targets CD137
View all literature mentionsThis monoclonal targets CD4
View all literature mentionsThis unknown targets IgG
View all literature mentionsThis unknown targets IgG
View all literature mentionsThis monoclonal targets beta-2 Microglobulin
View all literature mentionsThis polyclonal secondary targets IgG
View all literature mentionsThis unknown targets IgG
View all literature mentionsThis monoclonal targets FLAG
View all literature mentionsThis unknown targets IgG1
View all literature mentionsThis monoclonal targets V5 Tag
View all literature mentionsThis monoclonal targets Stat1, phospho (Tyr701)
View all literature mentionsThis monoclonal targets IDO
View all literature mentionsThis monoclonal targets Human WARS
View all literature mentionsThis monoclonal targets TUBA4A
View all literature mentionsCell line HEK293T is a Transformed cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line 888-mel is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line MCF-10A is a Spontaneously immortalized cell line with a species of origin Homo sapiens
View all literature mentionsCell line MDA-MB-435 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line BT-20 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line NCI-H226 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line NCI-H1299 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line WiDr is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line Hep-G2 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line DLD-1 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line PC-9 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line MDA-MB-435S is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line NCI-H187 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line MDA-MB-231 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line HT-29 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line D10 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line COLO 320 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line HCT 15 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line DU145 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line SW480 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line PC-3 is a Cancer cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line hTERT-RPE1 is a Telomerase immortalized cell line with a species of origin Homo sapiens (Human)
View all literature mentionsCell line MIA PaCa-2 is a Cancer cell line with a species of origin Homo sapiens (Human)
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