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  4. The Role of Autophagy and Apoptosis in Neuropathic Pain Formation

The Role of Autophagy and Apoptosis in Neuropathic Pain Formation

Int. J. Mol. Sci., 2022 · DOI: https://doi.org/10.3390/ijms23052685 · Published: February 28, 2022

Pain ManagementGenetics

Simple Explanation

Neuropathic pain, resulting from damage to the somatosensory system, poses significant management and treatment challenges, highlighting the urgent need for novel therapeutic strategies. Autophagy and apoptosis, crucial adaptive mechanisms in neurons under stress or damage, exhibit altered activities post-nerve damage, influencing myelin clearance, nerve regeneration, and pain behavior. The interplay between autophagy, apoptosis, and pro-inflammatory cytokines in the nervous system offers potential therapeutic targets for neuropathic pain by modulating apoptotic/autophagic activities and proinflammatory cytokine levels.

Study Duration
Not specified
Participants
Not specified
Evidence Level
Review

Key Findings

  • 1
    Upregulated autophagic activities may help myelin clearance, promote nerve regeneration, and attenuate pain behavior after nerve damage.
  • 2
    Proinflammatory cytokines can promote both autophagic/apoptotic activities and neuropathic pain formation.
  • 3
    Agents that can enhance autophagic activities but suppress apoptotic activities on the injured nerve and dorsal root ganglia can treat neuropathic pain.

Research Summary

This review summarizes the evolving changes in apoptotic and autophagic activities in the injured nerve, dorsal root ganglia, spinal cord, and brain after nerve damage. The crosstalk or interaction of autophagy and apoptosis in spinal cord neuropathic pain formation mainly involves the modulation of proinflammatory cytokines. Further detailed studies of autophagy, apoptosis, proinflammatory cytokines, and their interactions in neuropathic pain formation in the spinal cord after nerve injury are warranted to develop a new strategy to treat neuropathic pain.

Practical Implications

Therapeutic Potential

Agents enhancing autophagy and suppressing apoptosis in injured nerves and dorsal root ganglia hold promise for neuropathic pain treatment.

Targeted Modulation

Modulating autophagy, apoptosis, and pro-inflammatory cytokines presents a potential therapeutic strategy for neuropathic pain.

Further Research

Further research is needed to elucidate the detailed mechanisms of autophagy, apoptosis, and their interactions with pro-inflammatory cytokines in neuropathic pain formation in the spinal cord.

Study Limitations

  • 1
    Inconsistent results regarding autophagic and apoptotic changes in the spinal cord after peripheral nerve injury.
  • 2
    Complex central sensitization mechanisms in the spinal cord can lead to inconsistent findings.
  • 3
    The autophagic and apoptotic changes in the spinal cord after peripheral nerve injury have shown inconsistent results in different studies.

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