Cited by 69Neuropeptides and Animal PhysiologyOpioid Use Disorder TreatmentPain Mechanisms and Treatments

Chronic CRF1receptor blockade reduces heroin intake escalation and dependence‐induced hyperalgesia

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Park, Paula E., Schlosburg, Joel E., Vendruscolo, Leandro F., Schulteis, Gery, Edwards, Scott, Koob, George F.·2015·Addiction Biology

Abstract

Opioids represent effective drugs for the relief of pain, yet chronic opioid use often leads to a state of increased sensitivity to pain that is exacerbated during withdrawal. A sensitization of pain‐related negative affect has been hypothesized to closely interact with addiction mechanisms. Neuro‐adaptive changes occur as a consequence of excessive opioid exposure, including a recruitment of corticotropin‐releasing factor (CRF) and norepinephrine (NE) brain stress systems. To better understand the mechanisms underlying the transition to dependence, we determined the effects of functional antagonism within these two systems on hyperalgesia‐like behavior during heroin withdrawal utilizing models of both acute and chronic dependence. We found that passive or self‐administered heroin produced a significant mechanical hypersensitivity. During acute opioid dependence, systemic administration of the CRF1 receptor antagonist MPZP(20 mg/kg) alleviated withdrawal‐induced mechanical hypersensitivity. In contrast, several functional adrenergic system antagonists (clonidine, prazosin, propranolol) failed to alter mechanical hypersensitivity in this state. We then determined the effects of chronic MPZP or clonidine treatment on extended access heroin self‐administration and found that MPZP, but not clonidine, attenuated escalation of heroin intake, whereas both drugs alleviated chronic dependence‐associated hyperalgesia. These findings suggest that an early potentiation of CRF signaling occurs following opioid exposure that begins to drive both opioid‐induced hyperalgesia and eventually intake escalation.

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  • Systemic CRF1 receptor antagonist blocks withdrawal hyperalgesia in animals with extended access to heroin.

    “Consistent with this observation, hyperalgesia during withdrawal in animals that developed compulsive-like responding with extended access to heroin was blocked by the systemic administration of a CRF 1 receptor antagonist (Edwards et al., 2012b;Park et al., 2015).”

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Authors
Park, P. E., Schlosburg, J. E., Vendruscolo, L. F., Schulteis, G., Edwards, S., & Koob, G. F.
Affiliations
  • Scripps Research Institute (US)
  • University of California San Diego (US)
Corresponding author
Edwards, Scott
Venue
Addiction Biology
Publisher
Wiley
Published
2013-12-13
Volume
20
Issue
2
Pages
275-284
ISSN
  • 1355-6215 (ISSN-L)
  • 1369-1600
OpenAlex
W1891678001
Cited by
69
References
66
Citations by year
2026: 2 · 2025: 5 · 2024: 5 · 2023: 6 · 2022: 4 · 2021: 8 · 2020: 9 · 2019: 9 · 2018: 9 · 2017: 3 · 2016: 4 · 2015: 5
FWCI
1.47
Type
journal article
Language
en
Open access
Locations
  • Addiction Biology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (DA004043, DA007315, AA007456, AA020839)
  • U.S. Department of Veterans Affairs
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Opioid Use Disorder Treatment
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
Keywords
heroin, opioid withdrawal, hyperalgesia, mechanical hypersensitivity, heroin self-administration, clonidine, norepinephrine, corticotropin-releasing factor, opioid-induced hyperalgesia, pain sensitization
MeSH terms
CRF Receptor, Type 1, Adrenergic beta-Antagonists, Animals, Behavior, Animal, Clonidine, Heroin, Heroin Dependence, Hyperalgesia, Narcotics, Prazosin, Propranolol, Pyrimidines, Self Administration, Receptors, Corticotropin-Releasing Hormone, Rats, Adrenergic alpha-2 Receptor Agonists, Adrenergic alpha-1 Receptor Antagonists, Drug-Seeking Behavior

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