Sphingine is a term that refers to a type of lipid molecule known as sphingosine. Other synonyms for sphingine include sphinganine, 4-sphingenine, and dihydrosphingosine. Sphingolipids, like sphingine, are important building blocks of cell membranes and essential for a variety of cellular functions. In addition to its role in membrane structure, sphingine has been implicated in a range of cellular signaling pathways, including regulation of cell growth and survival. The diverse roles of sphingine in cellular biology suggest that it may have potential as a therapeutic target for a range of diseases, including cancer and inflammation.