Results 21 to 30 of about 18,841 (183)

Thematic Review Series: Sphingolipids. Nuclear sphingolipids: metabolism and signaling*

open access: yesJournal of Lipid Research, 2008
Sphingolipids are most prominently expressed in the plasma membrane, but recent studies have pointed to important signaling and regulatory roles in the nucleus.
Robert W. Ledeen, Gusheng Wu
doaj   +1 more source

Re-Configuration of Sphingolipid Metabolism by Oncogenic Transformation

open access: yesBiomolecules, 2014
The sphingolipids are one of the major lipid families in eukaryotes, incorporating a diverse array of structural variants that exert a powerful influence over cell fate and physiology. Increased expression of sphingosine kinase 1 (SPHK1), which catalyses
Anthony S. Don   +2 more
doaj   +1 more source

Hydrolysis of sphingosylphosphocholine by neutral sphingomyelinases [PDF]

open access: yesFEBS Letters, 2004
Sphingosylphosphocholine (SPC), the N‐deacylated form of sphingomyelin (SM), is a naturally occurring lipid mediator. However, little is known about the metabolism of SPC. We here report an in vitro assay system for SPC‐phospholipase C (PLC). Using this assay system, we demonstrated that nSMase1 and nSMase2, human neutral sphingomyelinases (SMases ...
Miura, Yukiko   +4 more
openaire   +2 more sources

Ceramide- and ERK-dependent pathway for the activation of CCAAT/enhancer binding protein by interleukin-1β in hepatocytes

open access: yesJournal of Lipid Research, 2005
Interleukin-1β (IL-1β) is a major inducer of liver acute-phase protein expression in response to infection. Several transcription factors, including CCAAT/enhancer binding protein (C/EBP), are known mediators in this process, although the mechanisms by ...
Natalia V. Giltiay   +4 more
doaj   +1 more source

Ceramide as a Target of Marine Triterpene Glycosides for Treatment of Human Myeloid Leukemia

open access: yesMarine Drugs, 2016
Acute myeloid leukemia (AML) is a heterogeneous myeloid clonal disorder exhibiting the accumulation of immature myeloid progenitors in the bone marrow and peripheral blood.
Seong-Hoon Yun   +3 more
doaj   +1 more source

Sphingomyelinase D, a novel probe for cellular sphingomyelin

open access: yesJournal of Lipid Research, 2003
Sphingomyelin (SM) and free cholesterol (FC) are concentrated in the plasma membranes of eukaryotes; however, the physiological significance of their association is unclear.
Papasani V. Subbaiah   +4 more
doaj   +1 more source

Utilizing Sphingomyelinase Sensitizing Liposomes in Imaging Intestinal Inflammation in Dextran Sulfate Sodium-Induced Murine Colitis

open access: yesBiomedicines, 2022
Inflammatory bowel disease (IBD) is characterized by chronic inflammation in the gastrointestinal tract, resulting in severe symptoms. At the moment, the goal of medical treatments is to reduce inflammation. IBD is treated with systemic anti-inflammatory
Tuula Penate Medina   +7 more
doaj   +1 more source

Increased sphingomyelin content impairs HDL biogenesis and maturation in human Niemann-Pick disease type B

open access: yesJournal of Lipid Research, 2006
We previously reported that human Niemann-Pick Disease type B (NPD-B) is associated with low HDL. In this study, we investigated the pathophysiology of this HDL deficiency by examining both HDL samples from NPD-B patients and nascent high density ...
Ching Yin Lee   +8 more
doaj   +1 more source

Role of sph2 Gene Regulation in Hemolytic and Sphingomyelinase Activities Produced by Leptospira interrogans. [PDF]

open access: yesPLoS Neglected Tropical Diseases, 2015
Pathogenic members of the genus Leptospira are the causative agents of leptospirosis, a neglected disease of public and veterinary health concern. Leptospirosis is a systemic disease that in its severest forms leads to renal insufficiency, hepatic ...
Suneel A Narayanavari   +4 more
doaj   +1 more source

Inhibition of de novo ceramide biosynthesis by FTY720 protects rat retina from light-induced degeneration

open access: yesJournal of Lipid Research, 2013
Light-induced retinal degeneration (LIRD) in albino rats causes apoptotic photoreceptor cell death. Ceramide is a second messenger for apoptosis. We tested whether increases in ceramide mediate photoreceptor apoptosis in LIRD and if inhibition of ...
Hui Chen   +6 more
doaj   +1 more source

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