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磷脂酰丝氨酸脂质体的药理作用:溶血磷脂酰丝氨酸的作用

Pharmacological effects of phosphatidylserine liposomes: the role of lysophosphatidylserine.

作者信息

Bigon E, Boarato E, Bruni A, Leon A, Toffano G

出版信息

Br J Pharmacol. 1979 Dec;67(4):611-6. doi: 10.1111/j.1476-5381.1979.tb08708.x.

Abstract
  1. Unique among the phospholipids, phosphatidylserine depresses brain energy metabolism when injected intravenously into mice in the form of sonicated liposomes. The possibility that this effect results from a metabolic transformation of phosphatidylserine is examined in this paper. 2. A strong enhancement of the phosphatidylserine effect is induced by the incubation of liposomes with rat serum. Similar phosphatidylserine activation is observed after the incubation of the phospholipid with purified phospholipase A2 from pancreas. In both cases phosphatidylserine is split into the deacylated derivative, lysophosphatidylserine. 3. Lysophosphatidylserine reproduces with greater efficacy the effect of phosphatidylserine on brain energy metabolism. Other lysophospholipids are not effective. 4. It is concluded that the pharmacological effects of phosphatidylserine liposomes is due to the generation of lysophosphatidylserine.
摘要
  1. 磷脂酰丝氨酸在磷脂中独具特色,当以超声处理的脂质体形式静脉注射到小鼠体内时,会抑制脑能量代谢。本文研究了这种效应是否由磷脂酰丝氨酸的代谢转化引起。2. 脂质体与大鼠血清孵育可强烈增强磷脂酰丝氨酸的效应。磷脂与来自胰腺的纯化磷脂酶A2孵育后,也观察到类似的磷脂酰丝氨酸活化现象。在这两种情况下,磷脂酰丝氨酸都被分解为脱酰基衍生物溶血磷脂酰丝氨酸。3. 溶血磷脂酰丝氨酸能更有效地重现磷脂酰丝氨酸对脑能量代谢的影响。其他溶血磷脂则无效。4. 得出的结论是,磷脂酰丝氨酸脂质体的药理作用归因于溶血磷脂酰丝氨酸的产生。

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