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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wilde, Susanne Sommermeyer, Daniel Frankenberger, Bernhard Uckert, Wolfgang Schendel, Dolores J. Leisegang, Matthias Mosetter, Barbara |
| Description | Author Affiliation: Wilde S ( Institute of Molecular Immunology, Helmholtz Center Munich, German.) |
| Abstract | Adoptive transfer of T cells expressing transgenic TCR with antitumor specificity provides a hopeful new therapy for patients with advanced cancer. To fulfill a large need for TCR with high affinity and specificity for various tumor entities, we sought to identify parameters for rapid selection of CTL clones with suitable characteristics. Twelve CTL clones displaying different Ag sensitivities for the same peptide-MHC epitope of the melanoma-associated Ag tyrosinase were analyzed in detail. Better MHC-multimer binding and slower multimer release are thought to reflect stronger TCR-peptide-MHC interactions; thus, these parameters would seem well suited to identify higher avidity CTL. However, large disparities were found comparing CTL multimer binding with peptide sensitivity. In contrast, CD8(+) CTL with superior Ag sensitivity mediated good tumor cytotoxicity and also secreted the triple combination of IFN-γ, IL-2, and TNF- , representing a Th1 pattern often missing in lower avidity CTL. Furthermore, recipient lymphocytes were imbued with high Ag sensitivity, superior tumor recognition, as well as capacity for Th1 polycytokine secretion after transduction with the TCR of a high-avidity CTL. Thus, Th1 polycytokine secretion served as a suitable parameter to rapidly demark cytotoxic CD8(+) T cell clones for further TCR evaluation. |
| ISSN | 00221767 |
| e-ISSN | 15506606 |
| Journal | The Journal of Immunology |
| Issue Number | 2 |
| Volume Number | 189 |
| Language | English |
| Publisher | The American Association of Immunologists |
| Publisher Date | 2012-07-15 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Antigen Presentation Immunology Antigens, Neoplasm Cd8-positive T-lymphocytes Cytokines Biosynthesis Cytotoxicity, Immunologic Th1 Cells Metabolism Pathology Cell Adhesion Cell Line Cell Line, Tumor Cells, Cultured Clone Cells Coculture Techniques Classification Secretion Research Support, Non-u.s. Gov't Discipline Immunology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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