Abstract:
:Imatinib mesylate has become an effective agent for the treatment of chronic myeloid leukemia (CML). However, the development of drug resistance has led to examination of combination therapies. In this study, we investigated the effects of combining imatinib with immunotherapy against a murine bcr-abl(+) leukemia, 12B1. We have previously shown that multiple chaperone proteins may be enriched into a vaccine form from tumor cell lysates by a free-solution isoelectric focusing method. We refer to these vaccines as chaperone-rich cell lysates (CRCLs) and have found that they are potent immunologic agents against a variety of murine tumors, including 12B1. We now demonstrate that the combination of imatinib with dendritic cells loaded with 12B1-derived CRCL yields high activation of anti-12B1-specific T cells and potent antitumor activity, resulting in tumor-free survival in up to 63% of mice with bcr-abl(+) 12B1 tumors. Our data suggest that immunotherapy can be effectively combined with imatinib for the treatment of CML.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Zeng Y,Graner MW,Feng H,Li G,Katsanis Edoi
10.1002/ijc.20115keywords:
subject
Has Abstractpub_date
2004-06-10 00:00:00pages
251-9issue
2eissn
0020-7136issn
1097-0215journal_volume
110pub_type
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