Cited by 140Memory and Neural MechanismsCannabis and Cannabinoid ResearchStress Responses and Cortisol

Glucocorticoids interact with the hippocampal endocannabinoid system in impairing retrieval of contextual fear memory

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Atsak, Piray, Hauer, Daniela, Campolongo, Patrizia, Schelling, Gustav, McGaugh, James L., Roozendaal, Benno·2012·Proceedings of the National Academy of Sciences

Abstract

There is extensive evidence that glucocorticoid hormones impair the retrieval of memory of emotionally arousing experiences. Although it is known that glucocorticoid effects on memory retrieval impairment depend on rapid interactions with arousal-induced noradrenergic activity, the exact mechanism underlying this presumably nongenomically mediated glucocorticoid action remains to be elucidated. Here, we show that the hippocampal endocannabinoid system, a rapidly activated retrograde messenger system, is involved in mediating glucocorticoid effects on retrieval of contextual fear memory. Systemic administration of corticosterone (0.3-3 mg/kg) to male Sprague-Dawley rats 1 h before retention testing impaired the retrieval of contextual fear memory without impairing the retrieval of auditory fear memory or directly affecting the expression of freezing behavior. Importantly, a blockade of hippocampal CB1 receptors with AM251 prevented the impairing effect of corticosterone on retrieval of contextual fear memory, whereas the same impairing dose of corticosterone increased hippocampal levels of the endocannabinoid 2-arachidonoylglycerol. We also found that antagonism of hippocampal β-adrenoceptor activity with local infusions of propranolol blocked the memory retrieval impairment induced by the CB receptor agonist WIN55,212-2. Thus, these findings strongly suggest that the endocannabinoid system plays an intermediary role in regulating rapid glucocorticoid effects on noradrenergic activity in impairing memory retrieval of emotionally arousing experiences.

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Crossref · 10.1073/pnas.1200742109

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Authors
Atsak, P., Hauer, D., Campolongo, P., Schelling, G., McGaugh, J. L., & Roozendaal, B.
Affiliations
  • University Medical Center Groningen (NL)
  • Sapienza University of Rome (IT)
  • Ludwig-Maximilians-Universität München (DE)
  • University of California, Irvine (US)
Venue
Proceedings of the National Academy of Sciences
Published
2012-02-13
Volume
109
Issue
9
Pages
3504-3509
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2147317037
Cited by
140
References
64
Citations by year
2026: 3 · 2025: 6 · 2024: 8 · 2023: 11 · 2022: 8 · 2021: 7 · 2020: 7 · 2019: 9 · 2018: 9 · 2017: 13 · 2016: 12 · 2015: 16 · 2014: 14 · 2013: 11 · 2012: 5
FWCI
7.54
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (publishedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
glucocorticoids, endocannabinoid system, hippocampus, contextual fear memory, corticosterone, CB1 receptor, 2-arachidonoylglycerol, noradrenergic activity, propranolol, beta-adrenoceptor antagonism, WIN 55,212-2, emotional arousal, retrograde signaling
MeSH terms
Acoustic Stimulation, Adrenergic beta-Antagonists, Animals, Arachidonic Acids, Arousal, Conditioning, Classical, Corticosterone, Electroshock, Emotions, Fear, Glucocorticoids, Glycerides, Hippocampus, Male, Memory, Morpholines, Naphthalenes, Piperidines, Propranolol, Pyrazoles, Receptors, Glucocorticoid, Rats, Sprague-Dawley, Receptor, Cannabinoid, CB1, Freezing Reaction, Cataleptic, Benzoxazines, Rats, Cannabinoid Receptor Modulators, Endocannabinoids

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