Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/91602
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Type: Journal article
Title: Regulation of sphingosine kinase in hematological malignancies and other cancers
Author: Pitson, S.
Powell, J.
Bonder, C.
Citation: Anti-Cancer Agents in Medicinal Chemistry, 2011; 11(9):799-809
Publisher: Bentham Science Publishers
Issue Date: 2011
ISSN: 1871-5206
1875-5992
Statement of
Responsibility: 
Stuart M. Pitson, Jason A. Powell and Claudine S. Bonder
Abstract: The sphingolipids ceramide, sphingosine and sphingosine 1-phosphate have emerged as important signaling molecules that regulate a number of important cellular processes. Sphingosine 1-phosphate enhances cell survival and proliferation, and also regulates angiogenesis, cell invasion, and differentiation via both its cell surface G protein-coupled receptors and recently identified intracellular effectors. In contrast, ceramide and sphingosine elicit growth arrest and apoptosis through direct modulation of a number of intracellular targets. The cellular balance of these sphingolipids contributes to the determination of cell fate, and it is now clear that disruption in this 'sphingolipid rheostat' contributes to the development, progression and chemotherapeutic resistance of both hematological malignancies and solid tumors. The sphingosine kinases are central regulators of this pathway since they not only increase sphingosine 1-phosphate and assist in reduction of ceramide and sphingosine, but are also regulated at multiple levels by external stimuli. Thus, targeting the regulation of the sphingosine kinases may be a viable therapeutic strategy for a diverse array of cancers. Here, we describe the current knowledge of sphingosine kinase regulation, effects of current and potential chemotherapeutic agents on this system, and discuss the implications of this for the treatment of hematological malignancies and other cancers.
Keywords: Cancer; Ceramide; Chronic myeloid leukemia; Hematological malignacy; Sphingosine; Sphingosine 1-phosphate; Sphingosine kinase; PKC; CML cells; AML; BCR-ABL; GD
Rights: Copyright status unknown
DOI: 10.2174/187152011797655078
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