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Updated: Feb 26, 2026
07:12
Chronic Post-Ischemia Pain Model for Complex Regional Pain Syndrome Type-I in Rats
Published on: January 21, 2020
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P2X receptor channels in chronic pain pathways
Louis-Philippe Bernier1, Ariel R Ase2, Philippe Séguéla2
1Department of Psychiatry, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada.
British Journal of Pharmacology
|July 21, 2017
Summary
Targeting P2X3, P2X4, and P2X7 receptors offers a promising therapeutic avenue for chronic pain. Advances in understanding these ATP-gated channels illuminate their role in pain pathophysiology and guide future drug development.
Area of Science:
- Neuroscience
- Pharmacology
- Pain Research
Background:
- Chronic pain affects many patients, with limited effective treatments.
- ATP signaling via P2X receptors is crucial in pain development and persistence.
- P2X receptors are excitatory, calcium-permeable ion channels targeted for pain relief.
Purpose of the Study:
- To review the role of specific P2X receptor subtypes in chronic pain.
- To discuss the therapeutic potential and challenges of targeting P2X receptors.
- To highlight recent advances in understanding P2X receptor function in pain.
Main Methods:
- Review of recent structural, functional, and pharmacological studies.
- Analysis of P2X3, P2X4, and P2X7 receptor involvement in pain models.
- Discussion of pharmacological targeting strategies.
Main Results:
- P2X3, P2X4, and P2X7 receptors significantly contribute to inflammatory, neuropathic, and cancer pain.
- Detailed characterization of these receptors in rodent and human systems.
- Identification of therapeutic opportunities and associated challenges.
Conclusions:
- Selective targeting of P2X receptors presents a promising strategy for chronic pain management.
- Further research into P2X receptor pharmacology is essential for developing novel analgesics.
- Understanding subtype-specific roles is key to effective therapeutic manipulation.
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