Format

Send to:

Choose Destination
See comment in PubMed Commons below
Trends Pharmacol Sci. 2011 Jan;32(1):16-24. doi: 10.1016/j.tips.2010.11.002. Epub 2010 Dec 14.

Sphingosine-1-phosphate and immune regulation: trafficking and beyond.

Author information

  • Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA. hongbo.chi@stjude.org

Abstract

Sphingosine-1-phosphate (S1P) is a bioactive lipid with important functions in the immune system. S1P levels are regulated by the balance between its synthesis through sphingosine kinases and its degradation by S1P lyase. S1P signals through plasma membrane G-protein-coupled receptors (S1PR1-S1PR5) or acts directly on intracellular targets. Although it has long been known that the S1P-S1PR1 axis mediates T cell egress from lymphoid organs, recent studies have revealed intrinsic functions of S1P and its receptors in both innate and adaptive immune systems that are independent of immune cell trafficking. Here I summarize recent advances in understanding of the roles of S1P and S1P receptors in inflammatory and allergic responses and lymphocyte differentiation, which directly contribute to the regulation of inflammatory and autoimmune diseases. I also describe strategies to target S1P and S1P receptors for immune-mediated diseases, particularly the immunosuppressant FTY720 (fingolimod), which has recently become the first oral therapy for relapsing multiple sclerosis.

Copyright © 2010 Elsevier Ltd. All rights reserved.

PMID:
21159389
[PubMed - indexed for MEDLINE]
PMCID:
PMC3017656
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for Elsevier Science Icon for PubMed Central
    Loading ...
    Write to the Help Desk