Cited by 1,420Neuroscience and Neuropharmacology ResearchNeurogenesis and neuroplasticity mechanismsNeural dynamics and brain function

Three groups of interneurons account for nearly 100% of neocortical GABAergic neurons

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Rudy, Bernardo, Fishell, Gordon, Lee, SooHyun, Hjerling‐Leffler, Jens·2011·Developmental Neurobiology

Abstract

An understanding of the diversity of cortical GABAergic interneurons is critical to understand the function of the cerebral cortex. Recent data suggest that neurons expressing three markers, the Ca2+-binding protein parvalbumin (PV), the neuropeptide somatostatin (SST), and the ionotropic serotonin receptor 5HT3a (5HT3aR) account for nearly 100% of neocortical interneurons. Interneurons expressing each of these markers have a different embryological origin. Each group includes several types of interneurons that differ in morphological and electrophysiological properties and likely have different functions in the cortical circuit. The PV group accounts for ∼40% of GABAergic neurons and includes fast spiking basket cells and chandelier cells. The SST group, which represents ∼30% of GABAergic neurons, includes the Martinotti cells and a set of neurons that specifically target layerIV. The 5HT3aR group, which also accounts for ∼30% of the total interneuronal population, is heterogeneous and includes all of the neurons that express the neuropeptide VIP, as well as an equally numerous subgroup of neurons that do not express VIP and includes neurogliaform cells. The universal modulation of these neurons by serotonin and acetylcholine via ionotropic receptors suggests that they might be involved in shaping cortical circuits during specific brain states and behavioral contexts.

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  1. Cauller LJ Clancy B Connors BW Backward cortical projections to primary somatosensory cortex in rats extend long horizontal axons in layer I J Comp Neurol 1998 390 297 310 9453672
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Authors
Rudy, B., Fishell, G., Lee, S., & Hjerling‐Leffler, J.
Affiliations
New York University (US)
Corresponding author
Rudy, Bernardo
Venue
Developmental Neurobiology
Publisher
Wiley
Published
2010-12-11
Volume
71
Issue
1
Pages
45-61
ISSN
  • 1932-8451 (ISSN-L)
  • 1932-846X
OpenAlex
W1970719523
Cited by
1,420
References
123
Citations by year
2026: 67 · 2025: 91 · 2024: 111 · 2023: 111 · 2022: 114 · 2021: 131 · 2020: 120 · 2019: 147 · 2018: 97 · 2017: 118 · 2016: 86 · 2015: 70 · 2014: 64 · 2013: 53 · 2012: 29
FWCI
2.65
Type
journal article
Language
en
Open access
Locations
  • Developmental Neurobiology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (5r01ns030989-22)
  • National Institute of Mental Health (R01MH068469, R01MH071679, R37MH071679)
  • National Institute of Neurological Disorders and Stroke (R01-NS030989, R01NS045217, R01NS032993, R01NS039007, F32NS076316, R01NS081297)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
GABAergic interneurons, neocortex, parvalbumin, somatostatin, VIP, basket cells, chandelier cells, Martinotti cells, layer 4, neurogliaform cells, embryonic origin, cortical circuits, serotonin modulation, ligand-gated ion channels
MeSH terms
Animals, Cell Count, gamma-Aminobutyric Acid, Humans, Interneurons, Nerve Net, Neural Pathways, Neocortex

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