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Updated: Sep 23, 2025

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Chronic Post-Ischemia Pain Model for Complex Regional Pain Syndrome Type-I in Rats
Published on: January 21, 2020
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CCK2 receptors in chronic pain
Justin E LaVigne1, Sascha R A Alles1
1Dept of Anesthesiology and Critical Care Medicine, University of New Mexico, School of Medicine, Albuquerque, NM 87109, USA.
Neurobiology of Pain (Cambridge, Mass.)
|May 16, 2022
Summary
New strategies targeting the cholecystokinin 2 receptor (CCK2R) offer renewed hope for chronic pain management. This review explores CCK2R
Area of Science:
- Neuroscience
- Pharmacology
- Pain Research
Background:
- The cholecystokinin 2 receptor (CCK2R) system has been a long-standing but largely unsuccessful target for pain relief.
- Recent advancements have reignited interest in CCK2R as a potential therapeutic target for pain management.
Purpose of the Study:
- To review the current understanding of CCK2R in both central and peripheral nervous systems under normal and chronic pain states.
- To examine the interplay between CCK2Rs and opioid systems in pain modulation.
- To summarize recent therapeutic development efforts targeting CCK2R for chronic pain.
Main Methods:
- Literature review of preclinical and clinical studies on CCK2R.
- Analysis of CCK2R expression and function in pain pathways.
- Examination of drug development strategies targeting CCK2R.
Main Results:
- CCK2R plays a role in modulating pain signaling in both the central and peripheral nervous systems.
- CCK2R interacts with opioid receptors, influencing their analgesic effects.
- Emerging therapeutic approaches show promise for CCK2R-based pain treatments.
Conclusions:
- CCK2R remains a viable target for novel chronic pain therapies.
- Further research into CCK2R modulation and its interaction with the opioid system is warranted.
- Developing targeted CCK2R therapies could offer new avenues for effective pain management.
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