What are lipoproteins doing in the brain?

What are lipoproteins doing in the brain?
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DOI:
10.1016/j.tem.2013.10.003
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发表时间:
2014-01
影响因子:
10.9
通讯作者:
Eckel, Robert H.
Eckel, Robert H.
中科院分区:
医学1区
文献类型:
--
作者:
Wang, Hong;Eckel, Robert H.

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血浆中的脂蛋白在组织之间运输脂质,然而,只有高密度脂蛋白(HDL)似乎穿过血脑屏障;因此,脑中发现的脂蛋白必须在中枢神经系统内产生。载脂蛋白E(ApoE)和ApoJ是脑中最丰富的载脂蛋白,主要由星形胶质细胞合成并在HDL上发现。在海马和其他脑区,脂蛋白通过脂蛋白受体介导的过程帮助调节神经行为功能。此外,脂蛋白及其受体也在体重和能量平衡的调节中起作用,即通过脂蛋白脂肪酶(LPL)和LDL受体相关蛋白(LRP)。因此,了解脂蛋白及其在大脑中的代谢提供了一个新的机会,具有潜在的治疗意义。
Lipoproteins in plasma transport lipids between tissues, however, only high density lipoproteins (HDL) appear to traverse the blood brain barrier; thus, lipoproteins found in the brain must be produced within the central nervous system. Apolipoproteins E (ApoE) and ApoJ are the most abundant apolipoproteins in the brain, are mostly synthesized by astrocytes and are found on HDL. In the hippocampus and other brain regions lipoproteins help regulate neurobehavioral functions by processes that are lipoprotein receptor-mediated. Moreover, lipoproteins and their receptors also have roles in the regulation of body weight and energy balance, i.e. through lipoprotein lipase (LPL) and the LDL receptor-related protein (LRP). Thus, understanding lipoproteins and their metabolism in the brain provides a new opportunity with potential therapeutic relevance.
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