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Chronic Post-Ischemia Pain Model for Complex Regional Pain Syndrome Type-I in Rats
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Acid-sensing ion channel 3: An analgesic target
Jasdip Singh Dulai1, Ewan St John Smith1, Taufiq Rahman1
1Department of Pharmacology, University of Cambridge , Cambridge, UK.
Channels (Austin, Tex.)
|December 1, 2020
Summary
Acid-sensing ion channel 3 (ASIC3) encodes prolonged acidosis as a pain signal. ASIC3 is a promising target for developing novel analgesics to manage pain effectively.
Area of Science:
- Neuroscience
- Molecular Biology
- Physiology
Background:
- Acid-sensing ion channels (ASICs) are crucial for cellular excitability.
- ASIC3, highly expressed in sensory neurons, uniquely encodes sustained acidosis.
- ASIC3 activation by protons leads to prolonged inward currents.
Purpose of the Study:
- To review the current understanding of ASIC3 function in physiology and pathophysiology.
- To examine ASIC3's modulatory mechanisms and its role in pain signaling.
- To identify research gaps and future directions for ASIC3 therapeutics.
Main Methods:
- Review of existing literature on ASIC3.
- Analysis of data from transgenic mouse models.
- Pharmacological studies investigating ASIC3 activity.
Main Results:
- ASIC3 mediates prolonged currents during acidosis, acting as a nociceptive signal.
- ASIC3 can be sensitized by mediators, lowering activation thresholds.
- Evidence supports ASIC3 as a therapeutic target for analgesics.
Conclusions:
- ASIC3 plays a significant role in pain perception and acidosis signaling.
- Modulation of ASIC3 offers potential for novel pain management strategies.
- Further research is needed to fully elucidate ASIC3's complex roles and therapeutic potential.
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