Targeting the Main Sources of Reactive Oxygen Species Production: Possible Therapeutic Implications in Chronic Pain

Peng-Fei Cheng1, Yuan-He1, Meng-Meng Ge2

  • 1Division of Colorectal Surgery, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, China.

Current Neuropharmacology
|November 3, 2023
PubMed

Insights

Identifying the sources of reactive oxygen species (ROS) in chronic pain is crucial for developing new analgesics. Targeting ROS production pathways offers a promising strategy for effective pain relief.

Area of Science:

  • Biomedical Science
  • Pain Research
  • Pharmacology

Background:

  • Chronic pain affects millions, with opioids posing risks due to long-term use.
  • Excessive reactive oxygen species (ROS) are implicated in chronic pain development and persistence.
  • Current antioxidant therapies are limited in their ability to fully inhibit ROS or avoid disrupting physiological processes.

Purpose of the Study:

  • To review mechanisms of ROS generation in vivo relevant to chronic pain.
  • To discuss preclinical evidence for targeting ROS production pathways as analgesics.
  • To identify future research directions for novel pain management strategies.

Main Methods:

  • Literature review of studies on ROS generation and chronic pain.
  • Analysis of preclinical data on targeting ROS pathways for analgesia.
  • Synthesis of information on current limitations and future research needs.

Main Results:

  • ROS contribute significantly to chronic pain through specific in vivo generation pathways.
  • Targeting these upstream ROS production mechanisms shows therapeutic potential in preclinical models.
  • Existing antioxidant approaches have limitations in efficacy and specificity.

Conclusions:

  • Understanding ROS production pathways is key to developing safer, effective chronic pain treatments.
  • Targeting specific ROS generation mechanisms offers a promising therapeutic avenue.
  • Further research is needed to translate these findings into clinical analgesics.

Related Concept Videos

Analgesia and Pain Management01:25

Analgesia and Pain Management

Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
634
Nociception01:44

Nociception

Nociception—the ability to feel pain—is essential for an organism’s survival and overall well-being. Noxious stimuli such as piercing pain from a sharp object, heat from an open flame, or contact with corrosive chemicals are first detected by sensory receptors, called nociceptors, located on nerve endings. Nociceptors express ion channels that convert noxious stimuli into electrical signals. When these signals reach the brain via sensory neurons, they are perceived as pain.
27.9K
Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
2.8K
Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
14.2K
Pain01:20

Pain

Pain serves as a critical warning signal that alerts the body to potential or actual harm. When mechanical pressure on the skin is intense, such as from a sharp pinch, the sensation transitions from touch to pain. Similarly, extreme temperatures, like a hot pot handle, convert the sensation of heat into pain. Pain can also result from overstimulation of other senses, such as blinding light, loud noise, or the intense heat from habañero peppers. This ability to sense pain is essential for...
482
Opioid Receptors: Overview01:22

Opioid Receptors: Overview

Opioid receptors, including the mu (μ, MOR), delta (δ, DOR), and kappa (κ, KOR) types, belong to the rhodopsin family of G protein-coupled receptors. These receptors are located throughout the central and peripheral nervous systems and in non-neuronal tissues such as macrophages and astrocytes. Opioid receptor ligands can be categorized into agonists or antagonists. Highly selective agonists include [d-Ala2, MePhe4, Gly(ol)5]-enkephalin or DAMGO for MOR, [D-Pen2,...
932