Cited by 268Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchSchizophrenia research and treatment

Convergence and Plasticity of Monoaminergic Systems in the Medial Prefrontal Cortex during the Postnatal Period: Implications for the Development of Psychopathology

Benes, F. M.·2000·Cerebral Cortex

Abstract

A variety of observations have suggested that the dopamine and serotonin systems may play a role in the pathophysiology and treatment of major mental disorders of childhood, adolescence and early adulthood. A recent triple immunofluorescence study has demonstrated a convergence of serotonin and dopamine fibers onto both pyramidal cells and GABAergic interneurons in the rat medial prefrontal cortex (mPFCx). These findings are consistent with the results of an electrophysiological study conducted in another laboratory that suggested such a relationship exists in the pyriform cortex of the rodent brain. During postnatal development, the dopamine system shows a progressive ingrowth of fibers into this region that continues until the early adult period. In contrast, GABAergic neurons appear to complete their postnatal maturation by the fourth postnatal week (the early post-weanling period). As dopamine fibers infiltrate the rat mPFCx, they progressively increase their interaction with neural elements within the neuropil and with the cell bodies of both pyramidal cells and GABAergic interneurons. This process appears to be influenced by the serotonin system, since lesioning of the nucleus raphe dorsalis during the neonatal period results in a significant increase of dopamine fibers. This finding suggests that lesions of the serotonin system induce plasticity of the cortical dopamine system; however, it is not known whether this inferred suppressive effect of serotonin fibers occurs at brainstem levels or within the mPFCx itself. Taken together, these various studies suggest that the convergence of dopamine and serotonin fiber systems on intrinsic cortical neurons shows considerable plasticity during postnatal life that could theoretically contribute to the development of 'miswired' circuits in individuals with neuropsychiatric disorders.

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Crossref · 10.1093/cercor/10.10.1014

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  • The dopaminergic innervation of the mPFC in rodent surges during adolescence, hallmarked by massive changes in the organization, shape and density of the dopaminergic fibers.

    “The dopaminergic innervation of the mPFC in rodent surges during adolescence hallmarked by massive changes in the organization, shape and density of the dopaminergic fibers [162–164].”

    From Development of prefrontal cortex (2022) · cites this paper as [163]

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Authors
Benes, F. M.
Affiliations
Harvard University (US)
Corresponding author
Benes, F. M.
Venue
Cerebral Cortex
Published
2000-10-01
Volume
10
Issue
10
Pages
1014-1027
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W2137587432
Cited by
268
References
121
Citations by year
2026: 4 · 2025: 1 · 2024: 5 · 2023: 2 · 2022: 6 · 2021: 9 · 2020: 8 · 2019: 8 · 2018: 13 · 2017: 10 · 2016: 18 · 2015: 12 · 2014: 11 · 2013: 21 · 2012: 9
FWCI
0.46
Type
journal article
Language
en
Open access
closed
Locations
  • Cerebral Cortex (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (MH.NS 31862, MH-42261, MH00423)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
Keywords
medial prefrontal cortex, dopamine, serotonin, postnatal development, GABAergic interneurons, pyramidal neurons, dorsal raphe nucleus, neuroplasticity, psychopathology, immunofluorescence
MeSH terms
Animals, Animals, Newborn, Mental Disorders, Dopamine, gamma-Aminobutyric Acid, Humans, Nervous System Diseases, Neural Pathways, Neuronal Plasticity, Serotonin, Prefrontal Cortex

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