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Ceramide-1-phosphate: a novel regulator of cell activation Gomez-Munoz AFEBS Lett 2004[Mar]; 562 (1-3): 5-10Ceramide-1-phosphate (CER-1-P) is emerging as a novel bioactive sphingolipid. It is formed by phosphorylation of ceramide catalyzed by ceramide kinase, and has been implicated in different cellular processes. Cer-1-P is mitogenic for fibroblasts, blocks apoptosis in macrophages, controls phagocytosis in neutrophils, and mediates inflammatory responses. Only recently have we started to uncover the signaling pathways that cytosolic phospholipase A2 and acid sphingomyelinase are direct intracellular targets of Cer-1-P, and that it may also induce phosphorylation of extracellular signal-regulated kinase-2 and calcium mobilization. These actions of Cer-1-P seem to be cell type-specific.|Animals[MESH]|Ceramides/*metabolism[MESH]|Humans[MESH]|Protein Kinase C/antagonists & inhibitors/metabolism[MESH]|Signal Transduction/*physiology[MESH]|Sphingosine/metabolism[MESH] |
