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Crosstalk Between Cell Death and Spinal Cord Injury: Neurology and Therapy

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Abstract

Spinal cord injury (SCI) often leads to neurological dysfunction, and neuronal cell death is one of the main causes of neurological dysfunction. After SCI, in addition to necrosis, programmed cell death (PCD) occurs in nerve cells. At first, studies recognized only necrosis, apoptosis, and autophagy. In recent years, researchers have identified new forms of PCD, including pyroptosis, necroptosis, ferroptosis, and cuproptosis. Related studies have confirmed that all of these cell death modes are involved in various phases of SCI and affect the direction of the disease through different mechanisms and pathways. Furthermore, regulating neuronal cell death after SCI through various means has been proven to be beneficial for the recovery of neural function. In recent years, emerging therapies for SCI have also provided new potential methods to restore neural function. Thus, the relationship between SCI and cell death plays an important role in the occurrence and development of SCI. This review summarizes and generalizes the relevant research results on neuronal necrosis, apoptosis, autophagy, pyroptosis, necroptosis, ferroptosis, and cuproptosis after SCI to provide a new understanding of neuronal cell death after SCI and to aid in the treatment of SCI.

Graphical Abstract

After spinal cord injury (SCI), cell death occurs, represented by necrosis, apoptosis, autophagy, pyroptosis, necroptosis, ferroptosis, and cuproptosis. Various forms of neuronal cell death are important factors leading to neurological dysfunction after SCI, throughout the entire course of the disease and affecting the progression of the disease in various ways. Regulating various types of cell death can effectively improve neurological dysfunction. This figure briefly displays the cellular manifestations, pathways, and key mechanisms of various cell death modes after SCI and lists the existing therapies for regulating cell death after SCI.

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Funding

This work was supported by a grant funded by the National Natural Science Foundation of China (Youth Program), No. 81101462; the Natural Science Foundation of Liaoning Province, Nos. 201602875 and 2019-KF-01-06; and the National Key Research and Development Program (Funded Projects), Nos. 2020YFC2005700 and 2020YFC2007600 (all to LXZ).

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  1. Department of Rehabilitation, Shengjing Hospital of China Medical University, Shenyang, 110134, Liaoning, China

    Qifeng Song, Qian Cui, Shi Sun, Yashi Wang, Yin Yuan & Lixin Zhang

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  1. Qifeng Song
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  2. Qian Cui
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  3. Shi Sun
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  4. Yashi Wang
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Contributions

Qifeng Song contributed to the study conception and design. Visualization was performed by Qifeng Song, Sun Shi, and Qian Cui. Provision of study materials was performed by Yashi Wang and Yin Yuan. Lixin Zhang was responsible for the supervision and funding acquisition. The first draft of the manuscript was written by Qifeng Song, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Lixin Zhang.

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Song, Q., Cui, Q., Sun, S. et al. Crosstalk Between Cell Death and Spinal Cord Injury: Neurology and Therapy. Mol Neurobiol (2024). https://doi.org/10.1007/s12035-024-04188-3

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