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Scheich, F.* ; Duyster, J.* ; Peschel, C.* ; Bernhard, H.

The immunogenicity of Bcr-Abl expressing dendritic cells is dependent on the Bcr-Abl kinase activity and dominated by Bcr-Abl regulated antigens.

Blood 110, 2556-2560 (2007)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
In Ph(+) chronic myeloid leukemia (CML), the constitutively active Bcr-Abl kinase leads to the up-regulation and activation of multiple genes, which may subsequently result in the expression of leukemia-associated antigens. In this study, we investigated the immunogenicity of Bcr-Abl-regulated antigens by stimulating CD8(+) T lymphocytes with autologous dendritic cells transfected with RNA coding for Bcr-Abl wild-type or a kinase-deficient mutant. Significant HLA class I-restricted T-cell responses were detected against antigens regulated by the Bcr-Abl kinase, but not toward the Bcr-Abl protein itself. The T-cell repertoire of a patient with CML in major molecular remission due to imatinib mesylate was also dominated by T cells directed against Bcr-Abl-regulated antigens. These results encourage the development of immunotherapeutic approaches against Bcr-Abl-regulated antigens for the treatment of CML patients with residual disease following therapy with Bcr-Abl kinase inhibitors.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 2007
HGF-reported in Year 0
ISSN (print) / ISBN 0006-4971
e-ISSN 1528-0020
Journal Blood
Quellenangaben Volume: 110, Issue: 7, Pages: 2556-2560 Article Number: , Supplement: ,
Publisher American Society of Hematology
Reviewing status Peer reviewed
PSP Element(s) G-501700-005
PubMed ID 17579186
Erfassungsdatum 2007-12-31