Cited by 75Neuroscience and Neuropharmacology ResearchMemory and Neural MechanismsNeural dynamics and brain function

Structural organization of long-range GABAergic projection system of the hippocampus

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Jinno, Shozo·2009·Frontiers in Neuroanatomy

Abstract

GABA is a key mediator of neural activity in the mammalian central nervous system, and a diverse set of GABAergic neurons utilize GABA as a transmitter. It has been widely accepted that GABAergic neurons typically serve as interneurons while glutamatergic principal cells send excitatory signals to remote areas. In general, glutamatergic projection neurons monosynaptically innervate both principal cells and local GABAergic interneurons in each target area, and these GABAergic cells play a vital role in modulation of the activity of principal cells. The formation and recall of sensory, motor and cognitive representations require coordinated fast communication among multiple areas of the cerebral cortex, which are thought to be mostly mediated by glutamatergic neurons. However, there is an increasing body of evidence showing that specific subpopulations of cortical GABAergic neurons send long-range axonal projections to subcortical and other cortical areas. In particular, a variety of GABAergic neurons in the hippocampus project to neighboring and remote areas. Using anatomical, molecular and electrophysiological approaches, several types of GABAergic projection neurons have been shown to exist in the hippocampus. The target areas of these cells are the subiculum and other retrohippocampal areas, the medial septum and the contralateral dentate gyrus. The long-range GABAergic projection system of the hippocampus may serve to coordinate precisely the multiple activity patterns of widespread cortical cell assemblies in different brain states and among multiple functionally related areas.

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Crossref · 10.3389/neuro.05.013.2009

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  • Given the diversity in SST-expressing interneurons throughout the neocortex and hippocampus, these lines cannot be used for selective targeting of O-LM, HIPP, and Martinotti cells.

    “However, given the diversity in SST-expressing interneurons throughout the neocortex and hippocampus, these lines cannot be used for selective targeting of O-LM, HIPP, and Martinotti cells (102, 535, 536, 716, 862, 1154).”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [535]

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Authors
Jinno, S.
Affiliations
Kyushu University (JP)
Corresponding author
Jinno, Shozo
Venue
Frontiers in Neuroanatomy
Published
2009
Volume
3
Pages
13-13
ISSN
1662-5129 (ISSN-L)
OpenAlex
W2002037736
Cited by
75
References
86
Citations by year
2026: 2 · 2025: 5 · 2024: 2 · 2023: 3 · 2022: 3 · 2021: 5 · 2020: 9 · 2019: 8 · 2018: 3 · 2017: 4 · 2016: 5 · 2015: 6 · 2014: 3 · 2013: 4 · 2012: 5
FWCI
1.66
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Neuroanatomy (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology (21500328)
  • Kaibara Morikazu Medical Science Promotion Foundation
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
hippocampus, GABAergic projection neurons, GABAergic interneurons, subiculum, medial septum, dentate gyrus, interneuron subpopulations

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