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Open Access Green as soon as Postprint is submitted to ZB.
Transduction fo CLL cells by CD40 ligand enhances an antigen-specific immune recognition by autologous T cells.
Blood 106, 3223-3226 (2005)
Several features of chronic lymphocytic leukemia (CLL) suggest that immune-based strategies may have therapeutic potential. A promising approach is provided by the transduction of CLL cells with CD40 ligand (CD40L) by viral vectors to enhance their immunogenicity. We compared the antigen-presenting capacity of CD40L-transduced CLL cells with mock-transduced or CD40L-stimulated CLL cells (CD40-CLL). A significantly higher number of T cells could be expanded using CD40L-transduced CLL cells as antigen-presenting cells (APCs) compared with the control group (P = .008). Using 5 different CLL-associated tumor antigens, including fibromodulin, MDM2 (murine double minute 2), survivin, p53, and KW-13, we show in interferon-γ (IFN-γ) enzyme-linked immunospot (ELISPOT) assays after 35 days of in vitro culture that the number of antigen-specific autologous T cells was also significantly higher when CD40L-transduced CLL cells were used as APCs (P < .001). Thus, CD40L-transduced CLL cells are able to induce an antigen-specific T-cell response and might be superior to CD40-CLL cells for immune-based therapeutic strategies in CLL.
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Publication type
Article: Journal article
Document type
Scientific Article
ISSN (print) / ISBN
0006-4971
e-ISSN
1528-0020
Journal
Blood
Quellenangaben
Volume: 106,
Issue: 9,
Pages: 3223-3226
Publisher
American Society of Hematology
Reviewing status
Peer reviewed
Institute(s)
Institute of Molecular Immunology (IMI)