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Published on: September 18, 2013
Targeting Sphingosine Kinases for the Treatment of Cancer
Clayton S Lewis1, Christina Voelkel-Johnson2, Charles D Smith3
1Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, United States.
Abstract:
Sphingosine kinases (SK1 and SK2) are key, druggable targets within the sphingolipid metabolism pathway that promote tumor growth and pathologic inflammation. A variety of isozyme-selective and dual inhibitors of SK1 and SK2 have been described in the literature, and at least one compound has reached clinical testing in cancer patients. In this chapter, we will review the rationale for targeting SKs and summarize the preclinical and emerging clinical data for ABC294640 as the first-in-class selective inhibitor of SK2.
Insights
Sphingosine kinases (SKs) drive tumor growth and inflammation. This review covers targeting SKs, focusing on ABC294640, a novel selective inhibitor of SK2, with preclinical and clinical data.
Area of Science:
- Biochemistry and Molecular Biology
- Oncology
- Pharmacology
Background:
- Sphingosine kinases (SK1 and SK2) are crucial enzymes in sphingolipid metabolism.
- Dysregulated SK activity promotes tumor progression and inflammatory responses.
- SKs represent attractive therapeutic targets for cancer and inflammatory diseases.
Purpose of the Study:
- To review the scientific rationale for targeting sphingosine kinases.
- To summarize the preclinical and clinical evidence for ABC294640, a selective SK2 inhibitor.
Main Methods:
- Literature review of sphingosine kinase inhibitors.
- Analysis of preclinical data for ABC294640.
- Summary of emerging clinical trial data for ABC294640.
Main Results:
- Multiple SK inhibitors have been developed, with some progressing to clinical trials.
- ABC294640 demonstrates selectivity for SK2.
- Early clinical data for ABC294640 in cancer patients are emerging.
Conclusions:
- Targeting sphingosine kinases offers a promising therapeutic strategy.
- ABC294640 is a first-in-class selective SK2 inhibitor with potential in oncology.
- Further clinical evaluation of ABC294640 is warranted.
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