Autophagy:大麻素通过抑制自噬导致运动功能障碍

2020-10-24 haibei MedSci原创

目前,大麻的娱乐和医疗使用在全世界范围内大体上在增加。然而,大麻的使用可能会引起不良的副作用,因此,开展旨在了解和可能减少大麻引起的危害的创新研究十分重要。

目前,大麻的娱乐和医疗使用在全世界范围内大体上在增加。然而,大麻的使用可能会引起不良的副作用,因此,开展旨在了解和可能减少大麻引起的危害的创新研究十分重要。

已有的对培养的神经细胞进行的研究已经表明,CNR1/CB1R(大麻素受体1)是大麻的主要分子靶点,大麻通过该靶点可以影响大自噬/自噬。然而,关于CNR1是否在体内控制大脑中的自噬,以及最终,潜在的CNR1-自噬连接的功能后果可能是什么还不得而知。

最近,研究人员在Autophagy杂志发文,其发现,Δ9-四氢大麻酚(THC),大麻的主要致醉成分,会损害小鼠纹状体的自噬。给予自噬激活剂(特别是瑞波谱temsirolimus和二糖trehalose)可以解救THC诱导的自噬抑制和运动失调。

体内各种遗传策略的结合也支持了这样的观点,即位于属于直接(纹状体)途径的神经元上的CNR1分子是THC的自噬和运动损伤活性所必需的。

通过将自噬确定为THC与运动性能之间的一种机制联系,该研究结果可能会开启一种关于大麻如何在大脑中发挥作用的新观点。

 

原始出处:

Cristina Blázquez et al. Cannabinoid-induced motor dysfunction via autophagy inhibition. Autophagy (2020). 

 

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    2021-08-29 ms3000001610150268

    😂

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    2020-10-26 kcb069
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    2020-10-24 乐乐369

    0

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