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| Item Type: | Article |
|---|---|
| Title: | Redirecting human T lymphocytes toward renal cell carcinoma specificity by retroviral transfer of T cell receptor genes |
| Creators Name: | Engels, B., Noessner, E., Frankenberger, B., Blankenstein, T., Schendel, D.J. and Uckert, W. |
| Abstract: | Adoptive T cell therapy of renal cell carcinoma (RCC) is limited by the difficulty in generating sufficient numbers of RCC-reactive T cells in vitro. To circumvent this problem, we cloned T cell receptor (TCR) α and β chains from a tumor-infiltrating lymphocyte clone specific for an RCC tumor antigen and transferred the TCR into human T cell lines and primary T lymphocytes. Efficient TCR expression in primary T lymphocytes was obtained only with a mouse myeloproliferative sarcoma virus (MPSV)-based retroviral vector, not with a Moloney murine leukemia virus (MLV)-based vector, although both viral supernatants were similar in titer, as shown by analysis of copy number integration in transduced T cells. Reverse transcription-polymerase chain reaction analysis revealed a higher amount of TCR-encoding transcripts when T cells were transduced with the MPSV vector in comparison with the MLV vector, indicating that high TCR expression levels can be achieved by appropriate cis-regulatory vector elements. The biological activity of the transferred TCR was shown by specific lysis of RCC cells (51Cr release assay) and by interferon γ and tumor necrosis factor α release (enzyme-linked immunosorbent assay) in an antigen-specific and HLA-A*0201-restricted fashion. Comparison of the redirected T lymphocytes with the original tumor-infiltrating lymphocyte clone revealed similar killing and cytokine secretion capabilities. The functional activity of TCR-redirected T lymphocytes was stable over time. The results demonstrate that use of an optimized retroviral vector yielded a high TCR transduction efficiency and stable and high TCR expression in primary human T lymphocytes and redirected their specificity toward RCC cells. |
| Keywords: | Renal Cell Carcinoma, Cell Line, Cultured Cells, Cytotoxic T-Lymphocytes, Gene Expression, Genetic Recombination, Genetic Transduction, Genetic Vectors, Interferon Type II, Kidney Neoplasms, Moloney Murine Leukemia Virus, Murine Sarcoma Viruses, Retroviridae, T-Cell Receptor Genes, Tumor Necrosis Factor-Alpha |
| Source: | Human Gene Therapy |
| ISSN: | 1043-0342 |
| Publisher: | Mary Ann Liebert |
| Volume: | 16 |
| Number: | 7 |
| Page Range: | 799-810 |
| Date: | 1 July 2005 |
| Official Publication: | https://doi.org/10.1089/hum.2005.16.799 |
| PubMed: | View item in PubMed |
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