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Parkin 介导的线粒体自噬是治疗奥沙利铂诱导的周围神经病变的一种潜在方法。

Parkin-mediated mitophagy is a potential treatment for oxaliplatin-induced peripheral neuropathy.

机构信息

Anesthesiology Department, China-Japan Union Hospital of Jilin University, Changchun, People's Republic of China.

Department of Plastic and Reconstructive Microsurgery, China-Japan Union Hospital of Jilin University, Changchun, People's Republic of China.

出版信息

Am J Physiol Cell Physiol. 2024 Jan 1;326(1):C214-C228. doi: 10.1152/ajpcell.00276.2023. Epub 2023 Dec 11.

Abstract

Oxaliplatin-induced peripheral nerve pain (OIPNP) is a common chemotherapy-related complication, but the mechanism is complex. Mitochondria are vital for cellular homeostasis and regulating oxidative stress. Parkin-mediated mitophagy is a cellular process that removes damaged mitochondria, exhibiting a protective effect in various diseases; however, its role in OIPNP remains unclear. In this study, we found that Parkin-mediated mitophagy was decreased, and reactive oxygen species (ROS) was upregulated in OIPNP rat dorsal root ganglion (DRG) in vivo and in PC12 cells stimulated with oxaliplatin (OXA) in vitro. Overexpression of Parkin indicated that OXA might cause mitochondrial and cell damage by inhibiting mitophagy. We also showed that salidroside (SAL) upregulated Parkin-mediated mitophagy to eliminate damaged mitochondria and promote PC12 cell survival. Knockdown of Parkin indicated that mitophagy is crucial for apoptosis and mitochondrial homeostasis in PC12 cells. In vivo study also demonstrated that SAL enhances Parkin-mediated mitophagy in the DRG and alleviates peripheral nerve injury and pain. These results suggest that Parkin-mediated mitophagy is involved in the pathogenesis of OIPNP and may be a potential therapeutic target for OIPNP. This article discusses the effects and mechanisms of Parkin-mediated mitophagy in oxaliplatin-induced peripheral nerve pain (OIPNP) from both in vivo and in vitro. We believe that our study makes a significant contribution to the literature because OIPNP has always been the focus of clinical medicine, and mitochondrial quality regulation mechanisms especially Parkin-mediated mitophagy, have been deeply studied in recent years. We use a variety of molecular biological techniques and animal experiments to support our argument.

摘要

奥沙利铂诱导的周围神经痛(OIPNP)是一种常见的化疗相关并发症,但机制复杂。线粒体对于细胞内稳态和调节氧化应激至关重要。Parkin 介导的线粒体自噬是一种清除受损线粒体的细胞过程,在各种疾病中表现出保护作用;然而,其在 OIPNP 中的作用尚不清楚。在本研究中,我们发现 Parkin 介导的线粒体自噬减少,活性氧(ROS)上调,在体内 OIPNP 大鼠背根神经节(DRG)和体外奥沙利铂(OXA)刺激的 PC12 细胞中。Parkin 的过表达表明,OXA 可能通过抑制线粒体自噬导致线粒体和细胞损伤。我们还表明,红景天苷(SAL)上调 Parkin 介导的线粒体自噬以消除受损的线粒体并促进 PC12 细胞存活。Parkin 的敲低表明,线粒体自噬对于 PC12 细胞的凋亡和线粒体内稳态至关重要。体内研究还表明,SAL 增强了 DRG 中的 Parkin 介导的线粒体自噬,缓解了周围神经损伤和疼痛。这些结果表明,Parkin 介导的线粒体自噬参与了 OIPNP 的发病机制,可能是 OIPNP 的潜在治疗靶点。本文从体内和体外两个方面探讨了 Parkin 介导的线粒体自噬在奥沙利铂诱导的周围神经痛(OIPNP)中的作用和机制。我们相信,我们的研究对文献做出了重要贡献,因为 OIPNP 一直是临床医学的重点,而线粒体质量调节机制,特别是 Parkin 介导的线粒体自噬,近年来受到了深入研究。我们使用各种分子生物学技术和动物实验来支持我们的观点。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1f9e/11192483/5f8d7176ad39/c-00276-2023r01.jpg

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