Interaction between sphingosine and cholesteryl sulfate in epidermal lipids.
Free sphingosine, a material with multiple and potent biological activities, is known to occur in high concentration in mammalian epidermis.In the present study, thin-layer chromatography showed that in lipid extracts of human and pig stratum corneum, sphingosine forms a relatively stable compound with endogenous cholesteryl sulfate.NMR spectrometr