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Thromb Haemost 2009; 101(04): 665-673
DOI: 10.1160/TH08-10-0675
Review Article
Schattauer GmbH

Sphingosine-1-phosphate: A bioactive lipid that confers high-density lipoprotein with vasculoprotection mediated by nitric oxide and prostacyclin

Cristina Rodríguez   *
,
María González-Díez   *
,
Lina Badimon
1   Centro de Investigación Cardiovascular (CSIC-ICCC), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
,
José Martínez-González
1   Centro de Investigación Cardiovascular (CSIC-ICCC), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
› Author Affiliations
Further Information

Publication History

Received: 17 October 2008

Accepted after minor revision: 21 January 2009

Publication Date:
23 November 2017 (online)

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Summary

Sphingosine-1-phosphate (S1P) is a bioactive lipid generated in the intracellular membranes from the metabolism of sphingomyelin. Once secreted/exported by cells of haematopoietic origin and vascular cells S1P interacts with plasma proteins and accumulates in high-density lipoprotein (HDL). Growing evidence indicates that HDL-associated S1P is responsible for the beneficial effects of these lipoproteins on vasorelaxation, cell survival, cell adhesiveness, angiogenesis and synthesis of two powerful endogenous anti-atherogenic and anti-thrombotic molecules such as nitric oxide (NO) and prostacyclin (PGI2). It is likely that vascular effects of HDL-S1P are regulated by the local expression of S1P receptors. Five G protein-coupled receptors (S1P1 to S1P5), with differential expression patterns and dissimilar coupling mechanism to G protein subunits, have been identified in the vasculature. This review is focused on the central role of S1P as a bioactive component that confers vasculoprotective properties to HDL by eliciting a wide range of biological responses on endothelial and smooth muscle cells largely dependent on the up-regulation of NO and prostacyclin.

Keywords

High-density lipoproteins - sphingosine-1-phosphate - prostacyclin - nitric oxide - vascular function

* These authors contributed equally.


 

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