Cited by 171Neurogenesis and neuroplasticity mechanismsNeuroscience and Neuropharmacology ResearchDevelopmental Biology and Gene Regulation

Common Origins of Hippocampal Ivy and Nitric Oxide Synthase Expressing Neurogliaform Cells

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Tricoire, Ludovic, Pelkey, Kenneth A., Daw, Michael I., Sousa, Vitor H., Miyoshi, Goichi, Jeffries, Brian, Cauli, Bruno, Fishell, Gord +1 more·2010·The Journal of Neuroscience

Abstract

GABAergic interneurons critically regulate cortical computation through exquisite spatiotemporal control over excitatory networks. Precision of this inhibitory control requires a remarkable diversity within interneuron populations that is largely specified during embryogenesis. Although interneurons expressing the neuronal isoform of nitric oxide synthase (nNOS) constitute the largest hippocampal interneuron cohort their origin and specification remain unknown. Thus, as neurogliaform cells (NGC) and Ivy cells (IvC) represent the main nNOS+interneurons, we investigated their developmental origins. Although considered distinct interneuron subtypes, NGCs and IvCs exhibited similar neurochemical and electrophysiological signatures, including NPY expression and late spiking. Moreover, lineage analyses, including loss-of-function experiments and inducible fate-mapping, indicated that nNOS+IvCs and NGCs are both derived from medial ganglionic eminence (MGE) progenitors under control of the transcription factor Nkx2-1. Surprisingly, a subset of NGCs lacking nNOS arises from caudal ganglionic eminence (CGE) progenitors. Thus, while nNOS+NGCs and IvCs arise from MGE progenitors, a CGE origin distinguishes a discrete population of nNOS−NGCs.

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Crossref · 10.1523/jneurosci.5123-09.2010

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  • Although all deep NGCs belong to the Lamp5 subclass, some are derived from the CGE and some from the MGE, as in the hippocampus.

    “Our results suggest that although all deep NGCs belong to the Lamp5 subclass, some are derived from the CGE and some from the MGE, as in the hippocampus25–27.”
  • AACs account for ~5% of MGE-derived hippocampal interneurons.

    “AACs account for ~5% of MGE-derived hippocampal interneurons since AACs represent 15% of all PV interneurons (102, 1137).”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [1137]

  • Both hippocampal and neocortical AACs have origins in the medial ganglionic eminence (MGE) with specification driven by the homeodomain transcription factor Nkx2.1.

    “Both hippocampal and neocortical AACs have origins in MGE with specification driven by the homeodomain transcription factor Nkx2.1 (1097, 1137, 1218).”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [1137]

  • Several primary dendrites extend from the soma then branch extensively in a stellate fashion yielding a compact somatodendritic profile reminiscent of glial cells that is typically fully contained within the NGFC's local axon cloud.

    “Several primary dendrites extend from the soma then branch extensively in a stellate fashion yielding a compact somatodendritic profile reminiscent of glial cells that is typically fully contained within the NGFC’s local axon cloud (FIGURE 3D; Refs. 299, 367, 550, 578, 606, 926, 1137, 1172, 1280).”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [1137]

  • Molecular markers associated with NGFCs include NPY, reelin, neuronal nitric oxide synthase (nNOS), α-actinin 2, and COUP transcription factor 2 (COUPTF2).

    “Molecular markers associated with NGFCs include NPY, reelin, neuronal nitric oxide synthase (nNOS), α-actinin 2, and COUP transcription factor 2 (COUPTF2) (48, 367, 549, 796, 858, 926, 1137).”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [1137]

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Authors
Tricoire, L., Pelkey, K. A., Daw, M. I., Sousa, V. H., Miyoshi, G., Jeffries, B., Cauli, B., Fishell, G., & McBain, C. J.
Affiliations
  • National Institutes of Health (US)
  • New York University (US)
  • Centre National de la Recherche Scientifique (FR)
Venue
The Journal of Neuroscience
Published
2010-02-10
Volume
30
Issue
6
Pages
2165-2176
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2016662169
Cited by
171
References
75
Citations by year
2026: 5 · 2025: 6 · 2024: 9 · 2023: 6 · 2022: 11 · 2021: 15 · 2020: 12 · 2019: 8 · 2018: 12 · 2017: 7 · 2016: 6 · 2015: 9 · 2014: 12 · 2013: 13 · 2012: 10
FWCI
5.37
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by-nc-sa)
  • HAL (submittedVersion)
Funders
  • Simons Foundation
  • New York State Stem Cell Science
  • Centre National de la Recherche Scientifique
  • National Institutes of Health
  • Japan Society for the Promotion of Science
  • National Institute of Mental Health (R01MH07679)
  • National Institute of Neurological Disorders and Stroke (R01NS039007)
  • National Institute of Child Health and Human Development
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (Z01HD001205)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
neurogliaform cells, nitric oxide synthase, hippocampal interneurons, GABAergic interneurons, medial ganglionic eminence, caudal ganglionic eminence, TTF-1, neuropeptide Y, interneuron specification
MeSH terms
Thyroid Nuclear Factor 1, Action Potentials, Animals, Hippocampus, Immunohistochemistry, Interneurons, Male, Mice, Transgenic, Neuropeptide Y, Nuclear Proteins, Stem Cells, Telencephalon, Transcription Factors, Vasoactive Intestinal Peptide, Cell Polarity, Patch-Clamp Techniques, Cell Lineage, Reverse Transcriptase Polymerase Chain Reaction, Mice, Nitric Oxide Synthase Type I

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