Matches in SemOpenAlex for { <https://semopenalex.org/work/W2090820836> ?p ?o ?g. }
- W2090820836 endingPage "1299" @default.
- W2090820836 startingPage "1288" @default.
- W2090820836 abstract "The lipid second messenger ceramide, which is generated by acidic and neutral sphingomyelinases or ceramide synthases, is a common intermediate of many apoptotic pathways. Metabolism of ceramide involves several enzymes, including glucosylceramide synthase and GD3 synthase, and results in the formation of gangliosides (GM3, GD3, and GT3), which in turn promote the generation of reactive oxygen species (ROS) and apoptosis. Fenretinide, a retinoic acid derivative, is thought to induce apoptosis via increases in ceramide levels, but the link between ceramide and subsequent apoptosis in neuroblastoma cells is unclear.SH-SY5Y and HTLA230 neuroblastoma cells were treated with fenretinide in the presence or absence of inhibitors of enzymes important in ceramide metabolism (fumonisin B1, inhibitor of ceramide synthase; desipramine, inhibitor of acidic and neutral sphingomyelinases; and PDMP, inhibitor of glucosylceramide). Small interfering RNAs were used to specifically block acidic sphingomyelinase or GD3 synthase activities. Apoptosis, ROS, and GD3 expression were measured by flow cytometry.In neuroblastoma cells, ROS generation and apoptosis were associated with fenretinide-induced increased levels of ceramide, glucosylceramide synthase activity, GD3 synthase activity, and GD3. Fenretinide also induced increased levels of GD2, a ganglioside derived from GD3. Inhibition of acidic sphingomyelinase but not of neutral sphingomyelinase or ceramide synthase, blocked fenretinide-induced increases in ceramide, ROS, and apoptosis. Exogenous GD3 induced ROS and apoptosis in SH-SY5Y cells but not in SH-SY5Y cells treated with baicalein, a specific 12-lipoxygenase inhibitor. Exogenous GD2 did not induce apoptosis.A novel pathway of fenretinide-induced apoptosis is mediated by acidic sphingomyelinase, glucosylceramide synthase, and GD3 synthase, which may represent targets for future drug development. GD3 may be a key signaling intermediate leading to apoptosis via the activation of 12-lipoxygenase." @default.
- W2090820836 created "2016-06-24" @default.
- W2090820836 creator A5004971896 @default.
- W2090820836 creator A5016011584 @default.
- W2090820836 creator A5033246952 @default.
- W2090820836 creator A5034669735 @default.
- W2090820836 creator A5038651887 @default.
- W2090820836 creator A5038931490 @default.
- W2090820836 creator A5050710377 @default.
- W2090820836 creator A5082517573 @default.
- W2090820836 creator A5082755088 @default.
- W2090820836 date "2004-08-31" @default.
- W2090820836 modified "2023-10-09" @default.
- W2090820836 title "Gangliosides Link the Acidic Sphingomyelinase-Mediated Induction of Ceramide to 12-Lipoxygenase-Dependent Apoptosis of Neuroblastoma in Response to Fenretinide" @default.
- W2090820836 cites W1964523246 @default.
- W2090820836 cites W1976744710 @default.
- W2090820836 cites W1996965660 @default.
- W2090820836 cites W1997021788 @default.
- W2090820836 cites W2000973050 @default.
- W2090820836 cites W2004785241 @default.
- W2090820836 cites W2006992169 @default.
- W2090820836 cites W2010121769 @default.
- W2090820836 cites W2011925577 @default.
- W2090820836 cites W2017231139 @default.
- W2090820836 cites W2017642141 @default.
- W2090820836 cites W2019235505 @default.
- W2090820836 cites W2034760363 @default.
- W2090820836 cites W2039122956 @default.
- W2090820836 cites W2046594970 @default.
- W2090820836 cites W2060025378 @default.
- W2090820836 cites W2064233008 @default.
- W2090820836 cites W2067606868 @default.
- W2090820836 cites W2067659186 @default.
- W2090820836 cites W2070005836 @default.
- W2090820836 cites W2077132003 @default.
- W2090820836 cites W2079190492 @default.
- W2090820836 cites W2087733030 @default.
- W2090820836 cites W2092639837 @default.
- W2090820836 cites W2110937845 @default.
- W2090820836 cites W2117752737 @default.
- W2090820836 cites W2123283965 @default.
- W2090820836 cites W2123898564 @default.
- W2090820836 cites W2125253412 @default.
- W2090820836 cites W2135393051 @default.
- W2090820836 cites W2152184881 @default.
- W2090820836 cites W2160942082 @default.
- W2090820836 cites W2164019644 @default.
- W2090820836 cites W2327522594 @default.
- W2090820836 cites W4236236547 @default.
- W2090820836 cites W4254963766 @default.
- W2090820836 cites W67114676 @default.
- W2090820836 doi "https://doi.org/10.1093/jnci/djh254" @default.
- W2090820836 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15339967" @default.
- W2090820836 hasPublicationYear "2004" @default.
- W2090820836 type Work @default.
- W2090820836 sameAs 2090820836 @default.
- W2090820836 citedByCount "81" @default.
- W2090820836 countsByYear W20908208362012 @default.
- W2090820836 countsByYear W20908208362013 @default.
- W2090820836 countsByYear W20908208362014 @default.
- W2090820836 countsByYear W20908208362015 @default.
- W2090820836 countsByYear W20908208362019 @default.
- W2090820836 countsByYear W20908208362020 @default.
- W2090820836 countsByYear W20908208362021 @default.
- W2090820836 countsByYear W20908208362022 @default.
- W2090820836 countsByYear W20908208362023 @default.
- W2090820836 crossrefType "journal-article" @default.
- W2090820836 hasAuthorship W2090820836A5004971896 @default.
- W2090820836 hasAuthorship W2090820836A5016011584 @default.
- W2090820836 hasAuthorship W2090820836A5033246952 @default.
- W2090820836 hasAuthorship W2090820836A5034669735 @default.
- W2090820836 hasAuthorship W2090820836A5038651887 @default.
- W2090820836 hasAuthorship W2090820836A5038931490 @default.
- W2090820836 hasAuthorship W2090820836A5050710377 @default.
- W2090820836 hasAuthorship W2090820836A5082517573 @default.
- W2090820836 hasAuthorship W2090820836A5082755088 @default.
- W2090820836 hasBestOaLocation W20908208361 @default.
- W2090820836 hasConcept C104317684 @default.
- W2090820836 hasConcept C180899940 @default.
- W2090820836 hasConcept C181199279 @default.
- W2090820836 hasConcept C185592680 @default.
- W2090820836 hasConcept C190283241 @default.
- W2090820836 hasConcept C2775954498 @default.
- W2090820836 hasConcept C2777851122 @default.
- W2090820836 hasConcept C2779237115 @default.
- W2090820836 hasConcept C2780533455 @default.
- W2090820836 hasConcept C2781070647 @default.
- W2090820836 hasConcept C2781121885 @default.
- W2090820836 hasConcept C2781457462 @default.
- W2090820836 hasConcept C41625074 @default.
- W2090820836 hasConcept C55493867 @default.
- W2090820836 hasConcept C61322309 @default.
- W2090820836 hasConcept C86803240 @default.
- W2090820836 hasConcept C95444343 @default.
- W2090820836 hasConceptScore W2090820836C104317684 @default.
- W2090820836 hasConceptScore W2090820836C180899940 @default.
- W2090820836 hasConceptScore W2090820836C181199279 @default.
- W2090820836 hasConceptScore W2090820836C185592680 @default.