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Parthenolide treatment activates stress signaling proteins in high-risk acute lymphoblastic leukemia cells with chromosomal translocation t(4;11)

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Parthenolide, the principal bio-active component of the herb feverfew (Tanacetum parthenium), has shown anti-leukemic activity. We evaluated the cell cycle status and the phosphorylation/activation of proteins involved in signal transduction in t(4;11) and non-t(4;11) acute lymphoblastic leukemia (ALL) cell lines after treatment with parthenolide. The cells were treated with the vehicle or 10 ┬ÁM parthenolide for 2, 4, 6 and 8 h. As shown by flow cytometric analysis, parthenolide induced growth arrest at the S to G2/M phase transition. Using multiplex technology and Western blotting, we showed that the treatment with parthenolide within 0 to 10 h induced the phosphorylation of stress signaling proteins, including the p38 mitogen-activated protein kinase, the c-Jun N-terminal kinase, c-Jun, the heat shock protein 27 and protein kinase B. These data show that parthenolide induces a stress response leading to cell death and provide further evidence suggesting that parthenolide could be useful as a novel therapeutic agent against high risk ALL with chromosomal translocation t(4;11).
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Document Type: Research Article

Affiliations: United States Department of Agriculture, Western Human Nutrition Research Center, University of California, Davis, CA 95616, USA., Email: [email protected]

Publication date: November 1, 2010

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  • The International Journal of Oncology provides an international forum for the publication of the latest, cutting-edge research in the broad area of oncology and cancer treatment. The journal accepts original high quality works and reviews on all aspects of oncology research including carcinogenesis, metastasis, epidemiology, chemotherapy and viral oncology. Through fair and efficient peer review, the journal is dedicated to publishing top tier research in the field, offering authors rapid publication as well as high standards of copy-editing and production. The International Journal of Oncology is published on a monthly basis in both print and early online.
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