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Rescuers from the Other Shore: Intercellular Mitochondrial Transfer and Its Implications in Central Nervous System Injury and Diseases

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Abstract

As the powerhouse and core of cellular metabolism and survival, mitochondria are the essential organelle in mammalian cells and maintain cellular homeostasis by changing their content and morphology to meet demands through mitochondrial quality control. It has been observed that mitochondria can move between cells under physiological and pathophysiological conditions, which provides a novel strategy for preserving mitochondrial homeostasis and also a therapeutic target for applications in clinical settings. Therefore, in this review, we will summarize currently known mechanisms of intercellular mitochondrial transfer, including modes, triggers, and functions. Due to the highly demanded energy and indispensable intercellular linkages of the central nervous system (CNS), we highlight the mitochondrial transfer in CNS. We also discuss future application possibilities and difficulties that need to be addressed in the treatment of CNS injury and diseases. This clarification should shed light on its potential clinical applications as a promising therapeutic target in neurological diseases.

Graphical Abstract

Intercellular mitochondrial transfer maintains the homeostasis of central nervous system (CNS), and its alteration is related to several neurological diseases. Supplementing exogenous mitochondrial donor cells and mitochondria, or utilizing some medications to regulate the process of transfer might mitigate the disease and injury.

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Abbreviations

AD:

Alzheimer’s disease

ALL:

Acute lymphoblastic leukemia

CNS:

Central nervous system

CSF:

Cerebrospinal fluid

CytC:

Cytochrome C

ER:

Endoplasmic reticulum

EVs:

Extracellular vesicles

FRDA:

Friedreich’s ataxia

GJCs:

Gap junction channels

HSPCs:

Hematopoietic stem and progenitor cells

IONPs:

Iron oxide nanoparticles

iPSC-MSCs:

Induced pluripotent stem cell-derived mesenchymal stem cells

MDVs:

Mitochondrial-derived vesicles

MMP:

Mitochondrial membrane potential

MSCs:

Mesenchymal stem cells

mtDNA:

Mitochondrial DNA

NOX2:

NADPH oxidase-2

OXPHOS:

Oxidative phosphorylation

PD:

Parkinson’s Disease

ROS:

Reactive oxygen species

TNTs:

Tunneling nanotubes

α-syn:

α-synuclein

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (82271361, 82101406) and the Natural Science Foundation of Jiangsu Province (BK20201234). Thank Yutong Liu, Yuanfei Luo, Zhihui Liu, and Liangyuan Pan for their assistance in writing and literature supplementation. Thank Figdraw for providing an online drawing tool to help finish figures in this review.

Funding

This work was supported by the National Natural Science Foundation of China (82271361, 82101406) and the Natural Science Foundation of Jiangsu Province (BK20201234).

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WD, WZ, LY, YX and YL wrote the main manuscript text, and WD, WZ prepared Figs 1, 2, and 3 and the graphical abstract. All authors reviewed the manuscript.

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Correspondence to Kuanyu Li or Wusheng Zhu.

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Weichen Dong, Wenxin Zhang, Linying Yuan, Yi Xie, Yunzi Li, Kuanyu Li, and Wusheng Zhu declare they have no financial interests.

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Dong, W., Zhang, W., Yuan, L. et al. Rescuers from the Other Shore: Intercellular Mitochondrial Transfer and Its Implications in Central Nervous System Injury and Diseases. Cell Mol Neurobiol 43, 2525–2540 (2023). https://doi.org/10.1007/s10571-023-01331-x

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  • DOI: https://doi.org/10.1007/s10571-023-01331-x

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