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Sphingolipids and their metabolism in physiology and disease.

TLDR
These results highlight critical roles for bioactive sphingolipids in most, if not all, major cell biological responses, including all major cell signalling pathways, and they link sphingoipid metabolism to key human diseases.
Abstract
Studies of bioactive lipids in general and sphingolipids in particular have intensified over the past several years, revealing an unprecedented and unanticipated complexity of the lipidome and its many functions, which rivals, if not exceeds, that of the genome or proteome. These results highlight critical roles for bioactive sphingolipids in most, if not all, major cell biological responses, including all major cell signalling pathways, and they link sphingolipid metabolism to key human diseases. Nevertheless, the fairly nascent field of bioactive sphingolipids still faces challenges in its biochemical and molecular underpinnings, including defining the molecular mechanisms of pathway and enzyme regulation, the study of lipid-protein interactions and the development of cellular probes, suitable biomarkers and therapeutic approaches.

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Metabolites as regulators of insulin sensitivity and metabolism

TL;DR: A comprehensive understanding of the metabolic adaptations involved in insulin resistance may enable the identification of novel targets for improving insulin sensitivity and preventing, and treating, T2DM.
Journal ArticleDOI

Plant cell-surface GIPC sphingolipids sense salt to trigger Ca 2+ influx

TL;DR: This work isolated the Arabidopsis thaliana mutant monocation-induced [Ca2+]iincreases 1 (moca1), and identified MOCA1 as a glucuronosyltransferase for glycosyl inositol phosphorylceramide (GIPC) sphingolipids in the plasma membrane that triggers responses to excess salt such as efflux of sodium ions from cells.
References
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Journal Article

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TL;DR: A randomized controlled experiment is designed to test whether access to affordable day care (in the form of subsidies, for example) would incentivize Saudi mothers to search actively for employment and to remain employed once they are hired.
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Principles of bioactive lipid signalling: lessons from sphingolipids

TL;DR: An understanding of the complex pathways of sphingolipid metabolism and the mechanisms that regulate lipid generation and lipid action is required to understand the mechanisms of cell growth, death, senescence, adhesion, migration, inflammation, angiogenesis and intracellular trafficking.
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Ceramide Triggers Budding of Exosome Vesicles into Multivesicular Endosomes

TL;DR: It is found that cargo is segregated into distinct subdomains on the endosomal membrane and that the transfer of exosome-associated domains into the lumen of theendosome did not depend on the function of the ESCRT (endosomal sorting complex required for transport) machinery, but required the sphingolipid ceramide.
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Secretory Mechanisms and Intercellular Transfer of MicroRNAs in Living Cells

TL;DR: It is shown that miRNAs are released through a ceramide-dependent secretory machinery and that the secretory miRNAAs are transferable and functional in the recipient cells and that a tumor-suppressive miRNA secreted via this pathway was transported between cells and exerted gene silencing in the recipients cells, thereby leading to cell growth inhibition.
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Programmed cell death induced by ceramide

TL;DR: The effects of C2-ceramide on DNA fragmentation were prevented by the protein kinase C activator phorbol 12-myristate 13-acetate, which suggests the existence of two opposing intracellular pathways in the regulation of apoptosis.
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