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Sphingosine-1-phosphate: an emerging therapeutic target
R E Toman1, S Milstien, S Spiegel
1Interdisciplinary Program in Neuroscience, Georgetown University Medical Center, Washington, DC 20007, USA.
Expert Opinion on Therapeutic Targets
|July 5, 2005
Summary
Sphingosine-1-phosphate (SPP) is a lipid mediator involved in cell signaling and fate. Its levels and interactions with ceramide are crucial in diseases like cancer and neurodegeneration.
Area of Science:
- Biochemistry
- Cell Biology
- Pharmacology
Background:
- Sphingosine-1-phosphate (SPP) acts as both an extracellular mediator and intracellular second messenger.
- SPP is the ligand for the endothelial differentiation gene-1 (EDG-1) family of G-protein coupled receptors (GPCRs).
- The balance between SPP and ceramide influences cell fate and is implicated in various diseases.
Purpose of the Study:
- To review the biosynthesis, metabolism, and functions of SPP.
- To explore the role of SPP in diverse pathological conditions.
- To identify potential therapeutic targets for manipulating SPP levels.
Main Methods:
- Literature review of sphingolipid metabolism and signaling.
- Analysis of SPP's role in cellular processes and disease pathogenesis.
- Identification of potential pharmaceutical targets related to SPP.
Main Results:
- SPP regulates critical cellular processes like migration, angiogenesis, and development via EDG-1 receptors.
- Intracellular SPP levels, in balance with ceramide, determine cell fate.
- Dysregulation of SPP is linked to cancer, neurodegenerative disorders, atherosclerosis, and allergic responses.
Conclusions:
- SPP is a key regulator of cellular functions and a significant factor in disease.
- Understanding SPP's multifaceted roles offers opportunities for novel therapeutic strategies.
- Targeting SPP biosynthesis, metabolism, or signaling pathways may provide new treatments for various pathologies.
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