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D-erythro-Sphingosine-C17-1-phosphate is a bioactive lipid which is found in a variety of cancer cells.

ChEBI: C17 Sphingosine-1-phosphate is a phosphoethanolamine.

Sphingosine-1-Phosphate (S1P) (d17:1) is a derivate of ceramide. It is a phosphorylated form of C17 analog of sphingosine. S1P is a zwitterionic sphingolipid. It is found in insects, yeasts and plants.

Sphingosine-1-phosphate (S1P) contributes to cellular growth and function. It also aids in various physiological and cellular processes such as atherosclerosis, inflammation, immunity, tumorigenesis and cell proliferation. S1P acts as a signaling lipid in animal cells.