Title : Ceramide mediates nanovesicle shedding and cell death in response to phosphatidylinositol ether lipid analogs and perifosine.

Pub. Date : 2012 Jul 5

PMID : 22764099






3 Functional Relationships(s)
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1 While investigating the mechanism of Akt inhibition, we found that short-term incubation with these compounds induced rapid shedding of cellular nanovesicles containing EGFR, IGFR and p-Akt that occurred in vitro and in vivo, while prolonged incubation led to cell detachment and death that depended on sphingomyelinase-mediated generation of ceramide. Ceramides AKT serine/threonine kinase 1 Homo sapiens
2 Similarly, exogenous ceramide also decreased active Akt and induced nanovesicle release. Ceramides AKT serine/threonine kinase 1 Homo sapiens
3 These results indicate ceramide generation underlies the Akt inhibition and cytotoxicity of this group of agents, and suggests nanovesicle shedding and uptake might potentially propagate their cytotoxicity in vivo. Ceramides AKT serine/threonine kinase 1 Homo sapiens