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Transient Receptor Potential Channels in neuropathic pain
Lilian Basso1, Christophe Altier1
1Department of Physiology and Pharmacology, Inflammation Research Network, University of Calgary, Calgary, Alberta, Canada.
Current Opinion in Pharmacology
|November 12, 2016
Summary
Neuropathic pain, difficult to treat, involves hypersensitivity processed by specialized nociceptors. Transient Receptor Potential (TRP) channels, especially thermosensitive ones, are key targets for pain relief.
Area of Science:
- Neuroscience
- Pharmacology
- Pain Research
Background:
- Neuropathic pain results from nervous system dysfunction, causing hypersensitivity to stimuli.
- Specialized nociceptors, the first line of defense in the somatosensory system, process these stimuli.
- Transient Receptor Potential (TRP) ion channels are crucial for detecting mechanical, thermal, and chemical stimuli.
Purpose of the Study:
- To review the role of TRP channels in neuropathic pain.
- To focus on thermosensitive TRP channels (TRPV1, TRPA1, TRPM8) in nociceptive transduction.
- To discuss the pharmacology and clinical success of TRP channel modulators.
Main Methods:
- Literature review of current knowledge on TRP channels and neuropathic pain.
- Focus on thermosensitive TRP channels involved in pain signaling.
- Analysis of preclinical and clinical studies on TRP channel pharmacology.
Main Results:
- TRP channels, particularly thermosensitive ones like TRPV1, TRPA1, and TRPM8, are central to nociceptive transduction.
- These channels contribute significantly to the hypersensitivity seen in neuropathic pain.
- The pharmacology of these receptors is actively being studied for therapeutic potential.
Conclusions:
- TRP channels are critical players in the mechanisms of neuropathic pain.
- Targeting thermosensitive TRP channels offers a promising avenue for novel pain therapies.
- Further research into TRP channel pharmacology is essential for clinical translation.
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