Membrane lipid environment: Potential modulation of chemokine receptor function

Membrane lipid environment: Potential modulation of chemokine receptor function
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膜脂质环境:趋化因子受体功能的潜在调节

DOI:
10.1016/j.cyto.2018.02.011
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发表时间:
2018
期刊:
影响因子:
3.8
通讯作者:
D. Legler
D. Legler
中科院分区:
医学3区
文献类型:
--
作者:
M. Thelen;D. Legler

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白细胞的迁移通常是由G蛋白偶联受体(gpcr)在特定配体的激活下介导的,这些配体包括小肽、趋化因子和各种脂质分子。七螺旋受体是高度动态的结构,其信号传导效率很大程度上取决于与配体的离散接触。此外,已经报道了几种受体活性的变构调节剂,它们本身不诱导迁移。调节gpcr活性的另一个重要机制是它们的局部环境。不仅膜脂组成影响活性,而且脂质的直接结合,特别是胆固醇,被证明可以改变受体信号传导特性。最近的研究表明,趋化因子受体的活性也受膜脂的调节。在这篇简短的综述中,我们讨论了这种新的范式和趋化因子诱导迁移的潜在后果。
Migration of leukocytes is typically mediated by G protein-coupled receptors (GPCRs) upon activation by specific ligands that range from small peptides, chemokines to a variety of lipidic molecules. The heptahelical receptors are highly dynamic structures and the signaling efficiency largely depends on the discrete contact with the ligand. In addition, several allosteric modulators of receptor activity have been reported, which do not induce migration by themselves. Another important mechanism modulating the activity of GPCRs is their local environment. Not only the membrane lipid composition influences the activity, but also direct binding of lipids, in particular cholesterol, was shown to alter receptor signaling properties. Recent findings indicate that also chemokine receptor activity is modulated by membrane lipids. In this short review we discuss this new paradigm and potential consequences for chemokine-induced migration.
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