Imatinib mesylate effectively combines with chaperone-rich cell lysate-loaded dendritic cells to treat bcr-abl+ murine leukemia

Yi Zeng, Michael W. Graner, Hanping Feng, Gang Li, Emmanuel Katsanis

Research output: Contribution to journalArticle

30 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)251-259
Number of pages9
JournalInternational Journal of Cancer
Volume110
Issue number2
DOIs
StatePublished - Jun 10 2004

Keywords

  • Chaperone/heat shock proteins
  • Chronic myeloid leukemia
  • Dendritic cells
  • Imatinib mesylate

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Fingerprint Dive into the research topics of 'Imatinib mesylate effectively combines with chaperone-rich cell lysate-loaded dendritic cells to treat bcr-abl<sup>+</sup> murine leukemia'. Together they form a unique fingerprint.

  • Cite this