Results 211 to 220 of about 30,128 (249)
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Sphingosine kinase, sphingosine-1-phosphate, and apoptosis
Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids, 2002The sphingolipid metabolites ceramide (Cer), sphingosine (Sph), and sphingosine-1-phosphate (S1P) play an important role in the regulation of cell proliferation, survival, and cell death. Cer and Sph usually inhibit proliferation and promote apoptosis, while the further metabolite S1P stimulates growth and suppresses apoptosis.
Michael, Maceyka +3 more
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Sphingosine kinases, sphingosine-1-phosphate and sphingolipidomics
Prostaglandins & Other Lipid Mediators, 2005It has become abundantly clear over the past decade that sphingolipids and their metabolites are key signaling molecules. Ceramide, the backbone of all sphingolipids, predominantly inhibits cell growth and induces apoptosis, while its metabolite, sphingosine-1-phosphate promotes growth and survival.
Michael, Maceyka +2 more
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A rapid radioassay for sphingosine kinase
Analytical Biochemistry, 2005A solvent-extraction-based radioassay for measuring sphingosine kinase (SKase) activity has been developed. The assay utilizes [3H]sphingosine substrate and differentially extracts the [3H]sphingosine-1-phosphate product. The extracted radioactivity is demonstrated to be primarily [3H]sphingosine-1-phosphate with less than 1% contamination by [3H ...
Donald A, Vessey +2 more
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The immunosuppressant FTY720 is phosphorylated by sphingosine kinase type 2
FEBS Letters, 2003 The potent immunosuppressive drug FTY720, a sphingosine analog, induces redistribution of lymphocytes from circulation to secondary lymphoid tissues. FTY720 is phosphorylated in vivo and functions as an agonist for four G-protein-coupled sphingosine-1 ...
Steven W Paugh +2 more
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Sphingosine Kinases Signalling in Carcinogenesis
Mini-Reviews in Medicinal Chemistry, 2015Sphingosine kinases (Sphk1 and 2) regulate the prodution of sphingosine-1-phosphate (S1P), that is key molecule in cancer development. SphK1, which is commonly overexpressed in malignant tumours, significantly contributes to the pathogenesis of various types of cancer as well as to resistance to different Tyrosine Kinase inibitors (TKIs).
Gabriella, Marfe +3 more
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Synthesis and Evaluation of Sphingosine Analogues as Inhibitors of Sphingosine Kinases
Journal of Medicinal Chemistry, 2009Sphingolipid-metabolizing enzymes control the critical balance of the cellular levels of sphingolipids, including the apoptotic inducing ceramide (Cer) and the proliferative inducing sphingosine 1-phosphate (S1P). The production of S1P, catalyzed by the action of sphingosine kinases (SPHKs), is known to be critical for many cellular processes. However,
Wong, L. +3 more
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Regulation of the Sphingosine Kinase/Sphingosine 1-Phosphate Pathway
2013Sphingolipids have emerged as pleiotropic signaling molecules with roles in numerous cellular and biological functions. Defining the regulatory mechanisms governing sphingolipid metabolism is crucial in order to develop a complete understanding of the biological functions of sphingolipid metabolites.
K Alexa Orr, Gandy, Lina M, Obeid
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Sphingosine kinases: A novel family of lipid kinases
2002Sphingosine kinase (SPHK) catalyzes the formation of sphingosine-1-phosphate (S11). S1P plays an important role in regulation of a variety of biological processes through intracellular and extracellular actions. S1P has recently been shown to be the ligand for the EDG-1 family of G-protein-coupled receptors.
Hong, Liu +4 more
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Fluorescence-labeled sphingosines as substrates of sphingosine kinases 1 and 2
Bioorganic & Medicinal Chemistry Letters, 2004Fluorescently labeled d-erythro-sphingosines have been successfully synthesized in 9 and 12 steps starting from commercially available Garner aldehyde. Determining the influence of the nature, position and linkage of the label on the in vitro phosphorylation rate by sphingosine kinases 1 and 2 resulted in the identification of a pyrene- and a NBD ...
Peter, Ettmayer +5 more
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Chemistry and Physics of Lipids, 2016
Sphingolipids (SLs) are essential structural and signaling molecules of eukaryotic cells. Among them, sphingosine 1 phosphate (S1P) is a recognized promoter of cell survival, also involved, inter alia, in inflammation and tumorigenesis processes. The knowledge and modulation of the enzymes implicated in the biosynthesis and degradation of S1P are ...
Pol, Sanllehí +3 more
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Sphingolipids (SLs) are essential structural and signaling molecules of eukaryotic cells. Among them, sphingosine 1 phosphate (S1P) is a recognized promoter of cell survival, also involved, inter alia, in inflammation and tumorigenesis processes. The knowledge and modulation of the enzymes implicated in the biosynthesis and degradation of S1P are ...
Pol, Sanllehí +3 more
openaire +2 more sources