Cited by 64Neuroscience and Neuropharmacology ResearchNeural dynamics and brain functionGenetics and Neurodevelopmental Disorders

Functional maturation of GABA synapses during postnatal development of the monkey dorsolateral prefrontal cortex

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Gonzalez-Burgos, Guillermo, Miyamae, Takeaki, Pafundo, Diego E., Yoshino, Hiroki, Rotaru, Diana C., Hoftman, Gil, Datta, Dibyadeep, Zhang, Yun +5 more·2015·Cerebral Cortex

Abstract

Development of inhibition onto pyramidal cells may be crucial for the emergence of cortical network activity, including gamma oscillations. In primate dorsolateral prefrontal cortex (DLPFC), inhibitory synaptogenesis starts in utero and inhibitory synapse density reaches adult levels before birth. However, in DLPFC, the expression levels of γ-aminobutyric acid (GABA) synapse-related gene products changes markedly during development until young adult age, suggesting a highly protracted maturation of GABA synapse function. Therefore, we examined the development of GABA synapses by recording GABAAR-mediated inhibitory postsynaptic currents (GABAAR-IPSCs) from pyramidal cells in the DLPFC of neonatal, prepubertal, peripubertal, and adult macaque monkeys. We found that the decay of GABAAR-IPSCs, possibly including those from parvalbumin-positive GABA neurons, shortened by prepubertal age, while their amplitude increased until the peripubertal period. Interestingly, both GABAAR-mediated quantal response size, estimated by miniature GABAAR-IPSCs, and the density of GABAAR synaptic appositions, measured with immunofluorescence microscopy, were stable with age. Simulations in a computational model network with constant GABA synapse density showed that the developmental changes in GABAAR-IPSC properties had a significant impact on oscillatory activity and predicted that, whereas DLPFC circuits can generate gamma frequency oscillations by prepubertal age, mature levels of gamma band power are attained at late stages of development.

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Authors
Gonzalez-Burgos, G., Miyamae, T., Pafundo, D. E., Yoshino, H., Rotaru, D. C., Hoftman, G., Datta, D., Zhang, Y., Hammond, M., Sampson, A. R., Fish, K. N., Bard Ermentrout, G., & Lewis, D. A.
Affiliations
University of Pittsburgh (US)
Venue
Cerebral Cortex
Published
2014-06-05
Volume
25
Issue
11
Pages
4076-4093
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W2108130753
Cited by
64
References
110
Citations by year
2026: 4 · 2025: 3 · 2024: 5 · 2023: 7 · 2022: 8 · 2021: 7 · 2020: 5 · 2019: 5 · 2018: 7 · 2017: 3 · 2016: 6 · 2015: 3 · 2014: 1
FWCI
1.98
Type
journal article
Language
en
Open access
Locations
  • Cerebral Cortex (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of Mental Health (P50MH084053, MH084053, R01MH096985, MH051234, MH096985, R01MH051234)
  • National Institute on Drug Abuse (DA-023109, R01DA023109)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
dorsolateral prefrontal cortex, postnatal development, GABAA receptor, inhibitory postsynaptic currents, pyramidal neurons, parvalbumin interneurons, gamma oscillations, miniature IPSCs, macaque, prepubertal development
MeSH terms
Age Factors, Animals, Animals, Newborn, Calcium Channel Blockers, Female, gamma-Aminobutyric Acid, Lysine, Macaca mulatta, Models, Neurological, Neurons, Pyridazines, Synapses, Prefrontal Cortex, alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid, Excitatory Amino Acid Agonists, Excitatory Amino Acid Antagonists, 6-Cyano-7-nitroquinoxaline-2,3-dione, GABA Antagonists, omega-Agatoxin IVA, Inhibitory Postsynaptic Potentials

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