Sphingosine 1-Phosphate, a Key Cell Signaling Molecule

Sphingosine-1-phosphate as signaling molecule in the skin

Sphingolipids are essential molecules of the mammalian epidermis. Keratinocytes generate and secrete huge amounts of ceramide-precursors to the extracellular domain of the stratum corneum, where they are further metabolized to specific ceramide species. The arrangement of ceramides to well-organized lipid lamellae is essential to form the epidermal barrier. Besides their role as structural comp...

Sphingosine‐1‐phosphate acts as a key molecule in the direct mediation of renal fibrosis

The major sphingolipid metabolite, sphingosine-1-phosphate (S1P), has important biological functions. S1P serves as a ligand for a family of five G-protein-coupled receptors with distinct signaling pathways regulating important biological pathways. S1P induces renal fibrosis through an inflammatory pathway. However, its direct fibrosis-inducing effect on the kidney has not been shown. The role ...

Dendritic Cell Sphingosine 1-Phosphate

Sphingosine 1-Phosphate signaling controls mitosis

Besides their structural role, sphingolipids including Sphingosine-1phosphate (S1P) have drawn attention as bioactive sphingolipid signaling molecules involved in the regulation of several processes, including cell growth, differentiation, survival, migration or immune response. It is now well established that S1P is involved in the onset or the progression of pathological conditions such as ca...

Sphingosine-1-phosphate signaling in endothelial activation.

The signaling and functions of the Endothelial Differentiation Gene (EDG) family of G protein-coupled receptors have been extensively elucidated. All the members of EDG family were shown to be receptors for lysosphingolipids or lysophospholipids. EDG-1, the prototype of EDG family receptors, is a high affinity receptor for serum-borne bioactive lipid, Sphingosine-1-phosphate (S1P). S1P, secrete...