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The Protective Role of Prosaposin and Its Receptors in the Nervous System

机译:前列腺素及其受体在神经系统中的保护作用

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摘要

Prosaposin (also known as SGP-1) is an intriguing multifunctional protein that plays roles both intracellularly, as a regulator of lysosomal enzyme function, and extracellularly, as a secreted factor with neuroprotective and glioprotective effects. Following secretion, prosaposin can undergo endocytosis via an interaction with the low-density lipoprotein-related receptor 1 (LRP1). The ability of secreted prosaposin to promote protective effects in the nervous system is known to involve activation of G proteins, and the orphan G protein-coupled receptors GPR37 and GPR37L1 have recently been shown to mediate signaling induced by both prosaposin and a fragment of prosaposin known as prosaptide. In this review, we describe recent advances in our understanding of prosaposin, its receptors and their importance in the nervous system.
机译:Prosaposin(也称为SGP-1)是一种有趣的多功能蛋白,在细胞内充当溶酶体酶功能的调节剂,在细胞外充当具有神经保护和神经胶质保护作用的分泌因子。分泌后,prosaposin可通过与低密度脂蛋白相关受体1(LRP1)相互作用而发生内吞作用。已知分泌的前列腺素在神经系统中促进保护作用的能力涉及G蛋白的激活,最近已证明孤儿G蛋白偶联的受体GPR37和GPR37L1介导prosaposin和prosaposin片段诱导的信号传导作为prosaptide。在这篇综述中,我们描述了对前列腺素,其受体及其在神经系统中重要性的理解的最新进展。

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