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Lipoprotein receptors in the vascular wall.

机译:血管壁中的脂蛋白受体。

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摘要

PURPOSE OF REVIEW: We will discuss the diverse roles of lipoprotein receptors that contribute to the maintenance and integrity of the vascular wall. RECENT FINDINGS: Lipoprotein receptors function not only as transporters for cholesterol and other lipids. They also act as sensors and signal transducers through which the endothelium, macrophages and smooth muscle cells communicate with their environment. SUMMARY: Traditionally, lipoprotein receptors were thought of merely as transporters of cholesterol and triglycerides to specific target cells, either for the purpose of delivery and redistribution of nutrients, or for the destruction or clearance of modified (oxidized) lipids by macrophages. Only recently have we begun to appreciate that the same receptors engage in a much more sophisticated and multi-faceted interaction with their environment. Inasmuch, they not only act as mere transporters, but as surprisingly versatile and adaptive signal transducers and modulators throughout the vessel wall. Theserecent findings now begin to reshape our thinking of how such structurally different and evolutionarily unrelated lipoprotein receptors orchestrate the response of the vessel wall to mechanical or metabolic damage.
机译:审查目的:我们将讨论脂蛋白受体在维持和维持血管壁完整性方面的各种作用。最近的发现:脂蛋白受体不仅充当胆固醇和其他脂质的转运蛋白。它们还充当传感器和信号换能器,通过它们内皮,巨噬细胞和平滑肌细胞与其周围环境进行通讯。摘要:传统上,脂蛋白受体仅被视为胆固醇和甘油三酸酯向特定靶细胞的转运蛋白,目的是输送和重新分配营养素,或者被巨噬细胞破坏或清除修饰的(氧化的)脂质。直到最近,我们才开始意识到相同的受体与其周围环境进行更为复杂和多方面的相互作用。结果,它们不仅充当单纯的转运蛋白,而且还充当遍及整个血管壁的令人惊讶的多功能自适应信号换能器和调制器。这些最近的发现现在开始重塑我们对这种结构上不同且在进化上不相关的脂蛋白受体如何协调血管壁对机械或代谢损伤的反应的看法。

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