Journal
CANCER LETTERS
Volume 298, Issue 1, Pages 99-106Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.canlet.2010.06.007
Keywords
KSP; STLC; Leukemia; Cell cycle; Apoptosis
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Funding
- Pharma Valley Center Foundation of Shizuoka Prefecture
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Effect of CF3-STLC, a potent kinesin spindle protein (KSP) inhibitor, on K562 human CML cell line was investigated. Treatment with CF3-STLC induced mitotic arrest of the cell cycle with the appearance of characteristic monoastral spindles, subsequent apoptotic cell death and cleavage of PARP-1, caspase-3, and 4E-BP1. The wide ranging caspase inhibitor z-VAD fmk prevented the cleavage of caspase-3 and 4E-BP1, but failed to attenuate PARP-1 cleavage or cell death triggered by CF3-STLC. These results suggest that CF3-STLC can induce apoptotic cell death in a caspase-independent manner, and may work effectively as an anti-cancer agent for hematological malignancies. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
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