[HTML][HTML] T-cell receptor-like antibodies: targeting the intracellular proteome therapeutic potential and clinical applications

M Cohen, Y Reiter - Antibodies, 2013 - mdpi.com
M Cohen, Y Reiter
Antibodies, 2013mdpi.com
Major histocompatibility complex (MHC) class I molecules are key in the immune response
against malignant cells by shaping the T-cell repertoire and presenting peptides from
endogenous antigens to CD8+ cytotoxic T cells. Because of their unique specificity, MHC-
peptide complexes are a desirable target for novel immunotherapeutic approaches. These
complexes can be targeted by recombinant T-cell receptors (TCRs). However, most TCRs
produced thus far have affinities which are too low for target detection under normal assay …
Major histocompatibility complex (MHC) class I molecules are key in the immune response against malignant cells by shaping the T-cell repertoire and presenting peptides from endogenous antigens to CD8+ cytotoxic T cells. Because of their unique specificity, MHC-peptide complexes are a desirable target for novel immunotherapeutic approaches. These complexes can be targeted by recombinant T-cell receptors (TCRs). However, most TCRs produced thus far have affinities which are too low for target detection under normal assay conditions, and limited stability (due to their generation in a single-chain version). Developing high-affinity soluble antibody molecules endowed with a TCR-like specificity toward tumor epitopes, termed TCR-like antibodies, addresses the low affinity of TCRs. These TCR-like antibodies are being developed as a new immunotherapeutic class for targeting tumor cells and mediating their specific killing. In addition, these antibodies are valuable research reagents enabling the study of human class I peptide-MHC ligand-presentation and TCR–peptide–MHC interactions.
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