Export and functions of sphingosine-1-phosphate.

Export and functions of sphingosine-1-phosphate.
复制标题

1-磷酸盐的出口和功能。

DOI:
10.1016/j.bbalip.2009.02.011
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发表时间:
2009-07
期刊:
Biochimica et biophysica acta
影响因子:
--
通讯作者:
Spiegel S
Spiegel S
中科院分区:
其他
文献类型:
--
作者:
Kim RH;Takabe K;Milstien S;Spiegel S

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鞘脂代谢物 1-磷酸鞘氨醇 (S1P) 已成为许多基本生物过程的关键参与者,在癌症、血管生成、伤口愈合、心血管功能、动脉粥样硬化、免疫和哮喘等方面发挥着重要作用。鞘氨醇激酶(一种催化鞘氨醇磷酸化为 S1P 的酶)被多种激动剂(包括生长因子、细胞因子、激素和抗原)激活,可增加细胞内 S1P。 S1P 的许多生物学效应是通过其以自分泌和/或旁分泌方式与位于细胞表面的 5 个特定 G 蛋白偶联受体结合来介导的。因此,了解细胞内产生的 S1P 释放到细胞外的机制既有趣又重要。在这篇评论中,我们将讨论S1P是如何形成和发布的。我们将特别关注目前关于如何维持组织和血液之间的 S1P 梯度以及 ABC 转运蛋白在 S1P 释放中的作用的知识。
The sphingolipid metabolite, sphingosine-1-phosphate (S1P), has emerged as a critical player in a number of fundamental biological processes and is important in cancer, angiogenesis, wound healing, cardiovascular function, atherosclerosis, immunity and asthma, among others. Activation of sphingosine kinases, enzymes that catalyze the phosphorylation of sphingosine to S1P, by a variety of agonists, including growth factors, cytokines, hormones, and antigen, increases intracellular S1P. Many of the biological effects of S1P are mediated by its binding to five specific G protein-coupled receptors located on the cell surface in an autocrine and/or paracrine manner. Therefore, understanding the mechanism by which intracellularly generated S1P is released out of cells is both interesting and important. In this review, we will discuss how S1P is formed and released. We will focus particularly on the current knowledge of how the S1P gradient between tissues and blood is maintained, and the role of ABC transporters in S1P release.
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