Cited by 64Neuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on BehaviorNeural dynamics and brain function

Cocaine Exposure Modulates Perineuronal Nets and Synaptic Excitability of Fast-Spiking Interneurons in the Medial Prefrontal Cortex

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Slaker, Megan L., Jorgensen, Emily T., Hegarty, Deborah M., Liu, Xinyue, Kong, Yan, Zhang, Fuming, Linhardt, Robert J., Brown, Travis E. +2 more·2018·eneuro

Abstract

Abstract We previously reported that perineuronal nets (PNNs) are required for cocaine-associated memories. Perineuronal nets are extracellular matrix that primarily surrounds parvalbumin (PV)-containing, GABAergic fast-spiking interneurons (FSIs) in the medial prefrontal cortex (mPFC). Here we measured the impact of acute (1 d) or repeated (5 d) cocaine exposure on PNNs and PV cells within the prelimbic and infralimbic regions of the mPFC. Adult rats were exposed to 1 or 5 d of cocaine and stained for PNNs (using Wisteria floribunda agglutinin) and PV intensity 2 or 24 h later. In the prelimbic and infralimbic PFC, PNN staining intensity decreased 2 h after 1 d of cocaine exposure but increased after 5 d of cocaine exposure. Cocaine also produced changes in PV intensity, which generally lagged behind that of PNNs. In the prelimbic PFC, both 1 and 5 d of cocaine exposure increased GAD65/67 puncta near PNN-surrounded PV cells, with an increase in the GAD65/67-to-VGluT1 puncta ratio after 5 d of cocaine exposure. In the prelimbic PFC, slice electrophysiology studies in FSIs surrounded by PNNs revealed that both 1 and 5 d of cocaine exposure reduced the number of action potentials 2 h later. Synaptic changes demonstrated that 5 d of cocaine exposure increased the inhibition of FSIs, potentially reducing the inhibition of pyramidal neurons and contributing to their hyperexcitability during relapse behavior. These early and rapid responses to cocaine may alter the network stability of PV FSIs that partially mediate the persistent and chronic nature of drug addiction.

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Crossref · 10.1523/eneuro.0221-18.2018

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  • Ethanol, nicotine, cocaine, and heroin alter the intensity or number of PNNs in various brain regions.

    “Several classes of drugs, including ethanol, nicotine, cocaine, and heroin, alter the intensity or number of PNNs in various brain regions, including the mPFC [154, 155], anterior cingulate cortex [131], orbitofrontal cortex [156], barrel cortex [157], insula [158], hypothalamus [159, 160], ventral tegmental area [156], and cerebellum [161–164].”

    From The extracellular matrix and perineuronal nets in memory (2022) · cites this paper as [154]

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  1. Yamada J, Ohgomori T, Jinno S (2015) Perineuronal nets affect parvalbumin expression in GABAergic neurons of the mouse hippocampus. Eur J Neurosci 41: 368– 378. 25411016

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Authors
Slaker, M. L., Jorgensen, E. T., Hegarty, D. M., Liu, X., Kong, Y., Zhang, F., Linhardt, R. J., Brown, T. E., Aicher, S. A., & Sorg, B. A.
Affiliations
  • Washington State University Vancouver (US)
  • University of Wyoming (US)
  • Oregon Health & Science University (US)
  • Rensselaer Polytechnic Institute (US)
Corresponding author
Sorg, Barbara A.
Venue
eneuro
Published
2018-09
Volume
5
Issue
5
Pages
ENEURO.0221-18.2018
ISSN
2373-2822 (ISSN-L)
OpenAlex
W2892965632
Cited by
64
References
65
Citations by year
2026: 8 · 2025: 3 · 2024: 7 · 2023: 7 · 2022: 10 · 2021: 14 · 2020: 9 · 2019: 6
FWCI
3.30
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • eNeuro (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute on Drug Abuse (R01DA040965, R01DA033404)
  • National Institute of General Medical Sciences (P30GM103398)
  • National Institute of Neurological Disorders and Stroke (P30NS061800)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
cocaine exposure, perineuronal nets, fast-spiking interneurons, parvalbumin, medial prefrontal cortex, prelimbic cortex, infralimbic cortex, synaptic inhibition, GAD65/67, VGLUT1, extracellular matrix, drug addiction, relapse, synaptic plasticity
MeSH terms
Animals, Cocaine, Extracellular Matrix, Interneurons, Male, Nerve Net, Neurons, Parvalbumins, Synapses, Rats, Sprague-Dawley, Prefrontal Cortex

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