作者: Masayo Aoki , Hiroaki Aoki , Rajesh Ramanathan , Nitai C. Hait , Kazuaki Takabe
DOI: 10.1155/2016/8606878
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摘要: Sphingosine-1-phosphate (S1P) is a bioactive sphingolipid metabolite involved in many critical cell processes. It is produced by the phosphorylation of sphingosine by sphingosine kinases (SphKs) and exported out of cells via transporters such as spinster homolog 2 (Spns2). S1P regulates diverse physiological processes by binding to specific G protein-binding receptors, S1P receptors (S1PRs) 1–5, through a process coined as “inside-out signaling.” The S1P concentration gradient between various tissues promotes S1PR1 …