Truth and consequences of sphingosine-1-phosphate lyase
نویسندگان
چکیده
منابع مشابه
Reduced sphingosine kinase-1 and enhanced sphingosine 1-phosphate lyase expression demonstrate deregulated sphingosine 1-phosphate signaling in Alzheimer’s disease
BACKGROUND The accumulation of beta amyloid (Aβ) peptides, a hallmark of Alzheimer's disease (AD) is related to mechanisms leading to neurodegeneration. Among its pleiotropic cellular effects, Aβ accumulation has been associated with a deregulation of sphingolipid metabolism. Sphingosine 1-phosphate (S1P) derived from sphingosine is emerging as a critical lipid mediator regulating various biolo...
متن کاملDendritic cell sphingosine-1-phosphate lyase regulates thymic egress
T cell egress from the thymus is essential for adaptive immunity and involves chemotaxis along a sphingosine-1-phosphate (S1P) gradient. Pericytes at the corticomedullary junction produce the S1P egress signal, whereas thymic parenchymal S1P levels are kept low through S1P lyase (SPL)-mediated metabolism. Although SPL is robustly expressed in thymic epithelial cells (TECs), in this study, we sh...
متن کاملStructure and function of sphingosine-1-phosphate lyase, a key enzyme of sphingolipid metabolism.
Sphingosine-1-phosphate lyase (SPL), a key enzyme of sphingolipid metabolism, catalyzes the irreversible degradation of sphingoid base phosphates. Its main substrate sphingosine-1-phosphate (S1P) acts both extracellularly, by binding G protein-coupled receptors of the lysophospholipid receptor family, and inside the cell, as a second messenger. There, S1P takes part in regulating various cellul...
متن کاملSphingosine-1-phosphate
Inflammatory bowel disease is associated with an increased risk of colorectal cancer. Colitis-associated cancer is a classical inflammation-driven cancer in which constitutive NFκB and STAT3 activation drive tumorigenesis. Recent findings published by Liang et al. in Cancer Cell demonstrate that sphingosine kinase 1 (SphK1)-mediated upregulation of sphingosine-1-phosphate (S1P) drives a persist...
متن کاملSphingosine 1-phosphate signalling.
Sphingosine 1-phosphate (S1P) is a lipid mediator formed by the metabolism of sphingomyelin. In vertebrates, S1P is secreted into the extracellular environment and signals via G protein-coupled S1P receptors to regulate cell-cell and cell-matrix adhesion, and thereby influence cell migration, differentiation and survival. The expression and localization of S1P receptors is dynamically regulated...
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ژورنال
عنوان ژورنال: Advances in Biological Regulation
سال: 2012
ISSN: 2212-4926
DOI: 10.1016/j.advenzreg.2011.09.015