Journal
JOURNAL OF IMMUNOLOGY
Volume 165, Issue 1, Pages 528-532Publisher
AMER ASSOC IMMUNOLOGISTS
DOI: 10.4049/jimmunol.165.1.528
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Transfer of the alpha beta TCR genes into T lymphocytes will provide a means to enhance Ag-specific immunity by increasing the frequency of tumor- or pathogen-specific T lymphocytes. We generated an efficient alpha beta TCR gene transfer system using two independent monocistronic retrovirus vectors harboring either of the class II MHC-restricted alpha or beta TCR genes specific for chicken OVA. The system enabled us to express the clonotypic TCR in 44% of the CD4(+) T cells. The transduced cells showed a remarkable response to OVA(323-339) peptide in the in vitro culture system, and the response to the Ag was comparable with those of the T lymphocytes derived from transgenic mice harboring OVA-specific TCR, Adoptive transfer of the TCR-transduced cells in mice induced the Ag-specific delayed-type hypersensitivity in response to OVA(323-339) challenge. These results indicate that alpha beta TCR gene transfer into peripheral T lymphocytes can reconstitute Ag-specific immunity. We here propose that this method provides a basis for a new approach to manipulation of immune reactions and immunotherapy.
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