Cannabidiol activates PINK1-Parkin-dependent mitophagy and mitochondrial-derived vesicles.

Cannabidiol activates PINK1-Parkin-dependent mitophagy and mitochondrial-derived vesicles.
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DOI:
10.1016/j.ejcb.2021.151185
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发表时间:
2022-01
影响因子:
6.6
通讯作者:
Liu X
Liu X
中科院分区:
生物学3区
文献类型:
--
作者:
Ramirez A;Old W;Selwood DL;Liu X

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PINK 1/Parkin通路在维持健康的线粒体池中起着重要作用。该途径的激活可导致细胞凋亡、线粒体自噬或脑源性囊泡形成,这取决于线粒体损伤的性质。PINK/Parkin激活导致这些不同线粒体结果的信号传导仍然未得到充分研究。在这里,我们提出了大麻二酚(CBD)以独特的方式激活PINK 1-Parkin通路的证据。CBD刺激PINK 1依赖性帕金线粒体募集类似于其他研究充分的帕金激活剂,但在时间动力学和线粒体命运的独特转变。线粒体通透性转换孔抑制剂环孢霉素A专门减少CBD诱导的PINK 1/Parkin激活及其相关的线粒体效应。出乎意料的是,CBD治疗还诱导了脑源性囊泡(MDV)的产生,这是一种潜在的质量控制机制,可能有助于修复部分受损的线粒体。我们的研究结果表明,CBD可能参与PINK 1-Parkin途径产生MDV,并通过线粒体渗透性转换孔开放修复线粒体损伤。这项工作揭示了CBD和PINK 1/Parkin依赖的MDV生产在线粒体健康调节中的新联系。
The PINK1/Parkin pathway plays an important role in maintaining a healthy pool of mitochondria. Activation of this pathway can lead to apoptosis, mitophagy, or mitochondrial-derived vesicle formation, depending on the nature of mitochondrial damage. The signaling by which PINK/Parkin activation leads to these different mitochondrial outcomes remains understudied. Here we present evidence that cannabidiol (CBD) activates the PINK1-Parkin pathway in a unique manner. CBD stimulates PINK1-dependent Parkin mitochondrial recruitment similarly to other well-studied Parkin activators but with a distinctive shift in the temporal dynamics and mitochondrial fates. The mitochondrial permeability transition pore inhibitor cyclosporine A exclusively diminished the CBD-induced PINK1/Parkin activation and its associated mitochondrial effects. Unexpectedly, CBD treatment also induced elevated production of mitochondrial-derived vesicles (MDV), a potential quality control mechanism that may help repair partial damaged mitochondria. Our results suggest that CBD may engage the PINK1-Parkin pathway to produce MDV and repair mitochondrial lesions via mitochondrial permeability transition pore opening. This work uncovered a novel link between CBD and PINK1/Parkin-dependent MDV production in mitochondrial health regulation.
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