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Nitroxidative Signaling Mechanisms in Pathological Pain
Peter M Grace1, Andrew D Gaudet2, Vasiliki Staikopoulos3
1Department of Psychology and Neuroscience, and the Center for Neuroscience, University of Colorado, Boulder, CO, USA; Current address: Department of Critical Care Research, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Trends in Neurosciences
|November 16, 2016
Summary
Reactive oxygen and nitrogen species (ROS/RNS) amplify pain signaling after tissue injury. Targeting these nitroxidative species offers new therapeutic strategies for pain relief and enhanced opioid analgesia.
Area of Science:
- Neuroscience
- Immunology
- Pain Research
Background:
- Tissue injury triggers complex cell signaling that amplifies pain.
- Neurotransmitters, neuropeptides, and cytokines are known pain mediators.
- Emerging research highlights the role of reactive oxygen and nitrogen species (ROS/RNS) in pain pathways.
Purpose of the Study:
- To review the generation and mechanisms of ROS/RNS in pain.
- To explore therapeutic strategies targeting nitroxidative signaling.
- To investigate the potential of these strategies to enhance opioid analgesia.
Main Methods:
- Literature review of studies on ROS/RNS in pain.
- Analysis of signaling pathways involving neurons, glia, and immune cells.
- Discussion of therapeutic interventions for nitroxidative stress.
Main Results:
- ROS/RNS, including superoxide and peroxynitrite, are generated post-injury.
- Nitroxidative species enhance neuroexcitability in pain pathways.
- Modulating nitroxidative signaling may improve pain management.
Conclusions:
- Nitroxidative species play a critical role in pain amplification.
- Targeting ROS/RNS presents a promising therapeutic avenue for pathological pain.
- Normalization of nitroxidative signaling could potentiate opioid efficacy.
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