Journal
BLOOD
Volume 109, Issue 6, Pages 2331-2338Publisher
AMER SOC HEMATOLOGY
DOI: 10.1182/blood-2006-05-023069
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Funding
- NCI NIH HHS [P01 CA018029, R37 CA033084, R37 CA33084, P01 CA18029] Funding Source: Medline
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Adoptive transfer of T lymphocytes is a promising treatment for a variety of malignancies but often not feasible due to difficulties generating T cells that are reactive with the targeted antigen from patients. To facilitate rapid generation of cells for therapy, T cells can be programmed with genes encoding the alpha and beta chains of an antigen-specific T-cell receptor (TCR). However, such exogenous alpha and beta chains can potentially assemble as pairs not only with each other but also with endogenous TCR alpha and beta chains, thereby generating alpha beta TCR pairs of unknown specificity as well as reducing the number of exogenous matched alpha beta TCR pairs at the cell surface. We demonstrate that introducing cysteines into the constant region of the alpha and beta chains can promote preferential pairing with each other, increase total surface expression of the introduced TCR chains, and reduce mismatching with endogenous TCR chains. This approach should improve both the efficacy and safety of ongoing efforts to use TCR transfer as a strategy to generate tumor-reactive T cells.
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