sphingosine 1-phosphate lyase
Sphingosine 1 phosphate lyase mutations cause primary adrenal insufficiency and steroid resistant nephrotic syndrome
... We investigated one extended, consanguineous kindred with 4 affected individuals with PAI, 2 of whom also had ste- roid-resistant nephrotic syndrome, described as focal segmen- tal glomerulosclerosis (FSGS) (9) (Figure ...
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Acquired modification of sphingosine-1-phosphate lyase activity is not related to adrenal insufficiency
... Arrondel C, Patat J, Gribouval O, Furlano M, Boyer O, Schmitt A, Vuiblet V, Hashmi S, Wilcken R, Bernier FP, Innes AM, Parboosingh JS, Lamont RE, Midgley JP, Wright N, Majewski J, Zenker M, Schaefer F, Kuss N, Greil J, ...
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Reduced sphingosine kinase-1 and enhanced sphingosine 1-phosphate lyase expression demonstrate deregulated sphingosine 1-phosphate signaling in Alzheimer’s disease
... #71700, 1:1000, Abcam), SphK2 (rabbit polyclonal #37977, 1:1000, Abcam), SPL (rabbit polyclonal #HPA023086, 1:2,000, Sigma Aldrich), S1P1 (rabbit clone EPR4538(2) #NBP1- 95120, 1:5,000, Novus) ...
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Sphingosine 1 phosphate lyase downregulation promotes colon carcinogenesis through STAT3 activated microRNAs
... S1P quantitation. S1P was extracted from 10 μl mouse plasma by adding 0.4 ml methanol, followed by vortexing and 30-minute incuba- tion at 30°C. The sample was spun down at 14,000 g, and the superna- tant was recovered. ...
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Overexpression of Sphingosine-1-Phosphate Lyase or Inhibition of Sphingosine Kinase in Dictyostelium discoideum Results in a Selective Increase in Sensitivity to Platinum-Based Chemotherapy Drugs
... enzyme sphingosine-1-phosphate (S-1-P) lyase (sglA), which catalyzes the last step in the sphingomyelin degradation path- way, the conversion of S-1-P to phosphoethanolamine and ...
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Mutations in sphingosine 1 phosphate lyase cause nephrosis with ichthyosis and adrenal insufficiency
... C16 sphingosine (21) and C14 and C16 sphingadienes (22), a sphingoid base with an extra double bond compared with sphin- ...C16 sphingosine, C14 sphingadiene, and C16 ceramide in Sply null hemizygous third ...
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The low down on sphingosine-1-phosphate lyase as a regulator of thymic egress
... when sphingosine kinases (SphK1 and SphK2) phosphorylate the long chain base ...lipid phosphate phosphatases (LPPs) and S1P-specific phosphatases (Sgpp1 and Sgpp2) can dephosphorylate S1P, regenerating ...
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Sphingosine Kinase Regulates the Sensitivity of Dictyostelium discoideum Cells to the Anticancer Drug Cisplatin
... lacking sphingosine-1-phosphate (S-1-P) lyase, the enzyme that degrades S-1-P, had increased resistance to cisplatin, whereas mutants overexpressing the enzyme were more ...
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Sphingosine 1-phosphate and sphingosine kinases in health and disease : recent advances
... S1P lyase [16]) that were previously believed to be biologically inactive are also now recognised signaling molecules, which require further investigation [17, 18] ...
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Sphingosine 1 phosphate signalling
... to sphingosine by the enzyme ceramidase. Sphingosine is then phosphorylated by the sphingosine kinase (Sphk) isoenzymes (Spiegel and Milstien, 2007), giving rise to ...S1P lyase (Blaho and ...
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Sphingosine 1-phosphate receptor 1 signaling in mammalian cells
... lipid, sphingosine 1-phosphate (S1P), is produced by phosphorylation of sphingosine, catalysed by two isoforms of sphingosine kinase (SK1 and SK2), whereas its degradation involves ...
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Role of sphingosine 1-phosphate receptors, sphingosine kinases and sphingosine in cancer and inflammation
... such sphingosine mimetics might represent a useful strategy for boosting innate immunity against invading ...S1P lyase inhibitors. S1P lyase catalyses the degradation of S1P (Cosconati and Novellino, ...
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Regulation of cellular sphingosine-1-phosphate by sphingosine kinase 1 and sphingosine-1-phopshate lyase determines chemotherapy resistance in gastroesophageal cancer
... cytosol to act via membrane S1P receptors, although re- ceptor independent effects, including intracellular tar- gets are also recognised [39]. Alternatively, irreversible cleavage of S1P by SGPL1 can occur in the ...
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Sphingosine 1-phosphate receptors and sphingosine kinase 1 : novel biomarkers for clinical prognosis in breast, prostate, and hematological cancers
... S1P lyase (SPL), the enzyme that catalyses cleavage of S1P into hexadecenal and phos- ...in sphingosine levels, which induces cell death (Oskouian and Saba, ...
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Identification of SPHK1 as a therapeutic target and marker of poor prognosis in cholangiocarcinoma
... Hematoxylin and eosin-stained slides from each case were reviewed. Specimens from MF-CCA patients who had undergone hepatectomy were fixed in formalin and embedded in paraffin. A 4-μm section of each specimen was stained ...
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Roles of sphingosine-1-phosphate signaling in cancer
... S1P is derived from intracellular ceramide. Ceramide is first converted into sphingosine by the enzyme cerami- dase, with sphingosine subsequently phosphorylated by SphK to produce S1P [1]. Thus far, ...
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Therapeutic potential of targeting sphingosine kinases and sphingosine 1-phosphate in hematological malignancies
... Inhibition results in apoptosis 85 Inhibition results in cytotoxicity of U937 xenografts in mice 27 Inhibition induces HL-60 cell cytotoxicity and sensitizes chemoresistant HL-60 cells 9[r] ...
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Erythrocyte derived sphingosine 1 phosphate is essential for vascular development
... which sphingosine kinase genes (Sphk1 and Sphk2) (15) were deleted in rbc using erythropoietin receptor-Cre (EpoR-Cre) deleter mice (RBC Sphk dKO mice) (18), which pro- vided an opportunity to assess the ...
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Decreased serum concentrations of sphingosine 1 phosphate in sepsis
... the vasculature and immune systems [7, 8]. S1P is present at high concentrations in plasma where it is bound mainly to albumin or high-density lipoprotein (HDL). It is pro- duced by two sphingosine-kinases (SphK ...
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The role of sphingosine 1-phosphate in inflammation and cancer
... overlaps the catalytic pocket of the second monomer. Under these conditions, both catalytic sites will be occupied with activator, thereby precluding binding of sphingosine. Under these conditions, the enzyme will ...
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