An Active Form of Sphingosine Kinase-1 Is Released in the Extracellular Medium as Component of Membrane Vesicles Shed by Two Human Tumor Cell Lines

Expression of sphingosine kinase-1 (SphK-1) correlates with a poor survival rate of tumor patients. This effect is probably due to the ability of SphK-1 to be released into the extracellular medium where it catalyzes the biosynthesis of sphingosine-1-phosphate (S1P), a signaling molecule endowed wit...

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Bibliographic Details
Main Authors: Salvatrice Rigogliuso, Chiara Donati, Donata Cassarà, Simona Taverna, Monica Salamone, Paola Bruni, Maria Letizia Vittorelli
Format: Article
Language:English
Published: Hindawi Limited 2010-01-01
Series:Journal of Oncology
Online Access:http://dx.doi.org/10.1155/2010/509329