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Sphingosine 1-phosphate receptors.

¹Center for Vascular Biology, Department of Physiology, University of Connecticut Health Center, Farmington 06030-3501, USA. hla@sun.uchc.edu

Prostaglandins & Other Lipid Mediators

|April 28, 2001

Summary

Sphingosine-1-phosphate (SPP) regulates cell functions via G-protein-coupled receptors (GPCRs). This review highlights SPP

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Area of Science:

Lipid signaling and cell biology.
Cardiovascular development and physiology.

Background:

Sphingosine-1-phosphate (SPP) is a bioactive lipid regulating cell growth, survival, and migration.
Its signaling mechanisms were previously unclear, but G-protein-coupled receptors (GPCRs) of the endothelial differentiation gene (EDG) family are now identified as SPP receptors.

Purpose of the Study:

To review recent findings on SPP receptors.
To elucidate the role of SPP signaling in cardiovascular system formation and function.

Main Methods:

Review of existing literature on SPP signaling pathways.
Analysis of studies investigating SPP receptor interactions (EDG family).
Examination of developmental studies in model organisms (e.g., Zebrafish).

Main Results:

SPP acts on EDG-1 and EDG-3 receptors in vascular endothelial cells, promoting survival and morphogenesis, crucial for angiogenesis.
EDG-1 is vital for vascular maturation during development.
SPP signaling through the EDG-5-like receptor Miles Apart (Mil) is essential for heart development in Zebrafish.

Conclusions:

SPP signaling via EDG receptors plays a critical physiological role in cardiovascular system development.
Further research is needed to fully understand SPP synthesis and its comprehensive physiological functions.

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