Cited by 167Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchNeural dynamics and brain function

Serotonergic regulation of neuronal excitability in the prefrontal cortex

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Andrade, Rodrigo·2011·Neuropharmacology

Abstract

The cerebral cortex receives a dense serotonergic innervation originating predominantly from the dorsal raphe nucleus. This innervation regulates cortical functioning by activating multiple serotonin receptors that are differentially expressed by pyramidal cells and interneurons. Electrophysiological studies in the prefrontal cortex indicate that receptors of the 5-HT(1A) and 5-HT(2A) subtypes are the main serotonin receptors regulating membrane excitability in pyramidal cells. Most pyramidal cells in layer V coexpress 5-HT(1A) and 5-HT(2A) receptors that together regulate how these neurons encode excitatory input into neuronal firing. In contrast, a subset of large pyramidal cells of deep layer V appears to express exclusively 5-HT(2A) receptors that depolarize and excite these cells. Serotonin also depolarizes and excites at least two classes of GABAergic interneurons by acting on 5-HT(3) and 5-HT(2A) receptors. The differential expression of serotonin receptors in different pyramidal cells and interneurons is consistent with a growing appreciation of the anatomical, molecular and functional heterogeneity of pyramidal cells and interneurons of the cerebral cortex. These findings begin to lay the ground for a cellular-level understanding of the serotonergic regulation of the prefrontal cortex.

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Crossref · 10.1016/j.neuropharm.2011.01.015

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  • Psychedelics primarily act on 5-HT2ARs expressed on glutamatergic pyramidal cells in cortical and deep cortical layers (V and VI).

    “Psychedelics primarily act on 5-HT2ARs expressed on glutamatergic pyramidal cells in cortical and deep cortical layers (V and VI) (86, 87).”

    From Psychedelics and Neuroplasticity: A Systematic Review Unraveling the Biological Underpinnings of Psychedelics. (2021) · cites this paper as [87]

    Section 4.1 reports 5-HT2A receptors on layer V pyramidal cells, and section 4.2 describes a 5-HT2A-expressing population in deep layer V associated with increased glutamate release. The paper discusses serotonin rather than establishing where psychedelics primarily act, and section 4.2 says little is known about serotonin’s effects in layer VI. No page numbers are available in our copy. (LLM, conf=0.88)

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Authors
Andrade, R.
Affiliations
Wayne State University (US)
Corresponding author
Andrade, Rodrigo
Venue
Neuropharmacology
Publisher
Elsevier BV
Published
2011-09
Volume
61
Issue
3
Pages
382-386
ISSN
0028-3908 (ISSN-L)
OpenAlex
W1990926259
Cited by
167
References
48
Citations by year
2026: 9 · 2025: 18 · 2024: 17 · 2023: 9 · 2022: 14 · 2021: 11 · 2020: 10 · 2019: 7 · 2018: 9 · 2017: 8 · 2016: 9 · 2015: 8 · 2014: 9 · 2013: 13 · 2012: 12
FWCI
1.16
Type
journal article
Language
en
Open access
Locations
  • Neuropharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Intellectum (Universidad de La Sabana) (submittedVersion, other-oa)
Funders
NIH grant (MH43987)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
serotonin, prefrontal cortex, neuronal excitability, dorsal raphe nucleus, 5-HT1A receptor, 5-HT2A receptor, 5-HT3 receptor, pyramidal neurons, GABAergic interneurons, cortical layer V, receptor heterogeneity, cortical excitability
MeSH terms
Animals, gamma-Aminobutyric Acid, Humans, Interneurons, Nerve Tissue Proteins, Synaptic Transmission, Neurons, Receptors, Serotonin, Serotonin, Prefrontal Cortex, Pyramidal Cells, Glutamic Acid

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