大麻二酚及其合成类似物的分子靶点:对香草素VR1受体和对大麻二酚的细胞吸收和酶解的影响。

文章的细节

引用

Bisogno T, Hanus L, De Petrocellis L, Tchilibon S, Ponde De, Brandi I, Moriello AS, Davis JB, Mechoulam R, Di Marzo V

大麻二酚及其合成类似物的分子靶点:对香草素VR1受体和对大麻二酚的细胞吸收和酶解的影响。

中国药理学杂志2001 10月134(4):845-52。doi: 10.1038 / sj.bjp.0704327。

PubMed ID
11606325 (在PubMed
摘要

1.大麻二酚(CBD)是大麻的一种非精神药物成分,可能作为消炎药用于治疗。关于这种化合物可能的分子靶标知之甚少。我们研究了CBD及其衍生物是否与辣椒素受体1型(VR1)或灭活内源性大麻素-大麻酰胺(AEA)的蛋白质相互作用。2.CBD及其对映体(+)-CBD,连同七个类似物,通过CBD的C-7甲基与羟基甲基或羧基和/或C-5'戊基与二甲基七基(DMH)基交换获得,在以下条件下进行测试:(a) VR1介导的过表达人类VR1细胞胞质Ca(2+)浓度的增加;(b) [(14)C] RBL-2H3细胞吸收-AEA,可通过选择性膜转运蛋白促进;(c) [(14) c]-AEA被大鼠脑膜水解,由脂肪酸酰胺水解酶催化。3.EC(50)=3.2 - 3.5微米时,CBD和(+)-CBD均能刺激VR1,而其他类似物则不能,其最大效果与辣椒素相似,即67 - 70%的效果与离子霉素(4微米)相似。 CBD (10 microM) desensitized VR1 to the action of capsaicin. The effects of maximal doses of the two compounds were not additive. 4. (+)-5'-DMH-CBD and (+)-7-hydroxy-5'-DMH-CBD inhibited [(14)C]-AEA uptake (IC(50)=10.0 and 7.0 microM); the (-)-enantiomers were slightly less active (IC(50)=14.0 and 12.5 microM). 5. CBD and (+)-CBD were also active (IC(50)=22.0 and 17.0 microM). CBD (IC(50)=27.5 microM), (+)-CBD (IC(50)=63.5 microM) and (-)-7-hydroxy-CBD (IC(50)=34 microM), but not the other analogues (IC(50)>100 microM), weakly inhibited [(14)C]-AEA hydrolysis. 6. Only the (+)-isomers exhibited high affinity for CB(1) and/or CB(2) cannabinoid receptors. 7. These findings suggest that VR1 receptors, or increased levels of endogenous AEA, might mediate some of the pharmacological effects of CBD and its analogues. In view of the facile high yield synthesis, and the weak affinity for CB(1) and CB(2) receptors, (-)-5'-DMH-CBD represents a valuable candidate for further investigation as inhibitor of AEA uptake and a possible new therapeutic agent.

引用本文的药库数据

药物靶点
药物 目标 种类 生物 药理作用 行动
大麻二酚 瞬时受体电位离子通道亚族V成员1 蛋白质 人类
未知的
激活剂
细节
医疗大麻 瞬时受体电位离子通道亚族V成员1 蛋白质 人类
未知的
不可用 细节
Nabiximols 瞬时受体电位离子通道亚族V成员1 蛋白质 人类
未知的
不可用 细节