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Egeter, O.* ; Mocikat, R. ; Ghoreschi, K.* ; Dieckmann, A. ; Röcken, M.*

Eradication of Disseminated Lymphomas with CpG-DNA Activated T Helper Type Cells from Nontransgenic Mice.

Cancer Res. 60, 1515-1520 (2000)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
Various evidence suggests that adoptive transfer of polyclonal, tumor-specific, IFN-γ-producing CD4+ T cells [T helper type 1 (Th1) cells] should be highly efficient for tumor immune therapy. However, this approach could not be tested because very few MHC class II-restricted tumor peptides have been defined. Here we show that stimulation of freshly isolated T helper cells with syngeneic tumor cells and antigen-presenting cells in the presence of immunostimulatory CpG DNA allows the generation of large numbers of strongly polarized, tumor-specific Th1 cells within 3 weeks of culture, even when T helper cells were derived from tumor-bearing mice. A single injection of 0.5 × 106 A20-specific Th1 cells even eradicated disseminated A20 lymphomas and provided lifelong protection without inducing autoimmune disease. The therapy was largely independent of CD8+ cells but required IFN-γ and CD40-CD40L interactions, suggesting that tumor-specific Th1 cells eradicate established tumors by activating proinflammatory macrophages.
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Publication type Article: Journal article
Document type Scientific Article
ISSN (print) / ISBN 0008-5472
e-ISSN 1538-7445
Journal Cancer Research
Quellenangaben Volume: 60, Issue: 6, Pages: 1515-1520 Article Number: , Supplement: ,
Publisher American Association for Cancer Research (AACR)
Publishing Place Philadelphia, Pa.
Reviewing status Peer reviewed
Institute(s) Institute of Molecular Immunology (IMI)