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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 möglich sobald Postprint bei der ZB eingereicht worden ist.
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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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
ISSN (print) / ISBN 0006-4971
e-ISSN 1528-0020
Zeitschrift Blood
Quellenangaben Band: 110, Heft: 7, Seiten: 2556-2560 Artikelnummer: , Supplement: ,
Verlag American Society of Hematology
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Molecular Immunology (IMI)