Cited by 120Neuroscience and Neuropharmacology ResearchNeuropeptides and Animal PhysiologyNeural dynamics and brain function

The innervation of parvalbumin-containing interneurons by VIP-immunopositive interneurons in the primary somatosensory cortex of the adult rat

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Dávid, Csaba, Schleicher, Axel, Zuschratter, Werner, Staiger, Jochen F.·2007·European Journal of Neuroscience

Abstract

γ‐Aminobutyric acid (GABA)ergic interneurons of neocortex consist of many subgroups with extremely heterogeneous morphological, physiological and molecular properties. To explore the putative effect of the vasoactive intestinal polypeptide‐immunopositive (VIP +) neurons on neocortical circuitry, the number and distribution of VIP + boutons were analysed on somatodendritic domains of 272 parvalbumin immunopositive (PV +) 3D‐reconstructed neurons. The synaptic nature of 91% of somatic and 76% of dendritic contacts was verified by electron microscopy. The target PV + neurons were separated in two significantly different groups by means of cluster analysis. The first group (Cluster 1, 26%) received on average five times more VIP + synapses than those of the second group. The second group (Cluster 2, 74%) contained cells that were poorly innervated by VIP + boutons or did not have either somatic or dendritic or any VIP innervation at all. The cells of Cluster 1 had a soma size and total dendritic length significantly smaller than that of Cluster 2, however, they received three times more dendritic synapses, which resulted in a five times higher VIP + synaptic density on dendrites. Our results showed that although most of the PV + cells are innervated by VIP + boutons at a varying degree, some 6% of PV + cells received no input from VIP + interneurons. This suggests a refined morphological basis to influence the majority of the PV + interneurons, which are very effectively controlling pyramidal cell firing. Together with metabolic and neuromodulatory effects of VIP, this would probably result in an enhanced responsiveness of the latter cell type to tactile stimuli.

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Crossref · 10.1111/j.1460-9568.2007.05496.x

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  • At least a portion of Vip interneurons form perisomatic basket terminals on their postsynaptic targets, with Vip-containing boutons found on both pyramidal cells and interneurons.

    “At least a portion of Vip INs seems to form perisomatic basket terminals on their postsynaptic targets. Vip containing boutons have been found on both PCs and INs (David et al., 2007; Freund et al., 1986; Hioki et al., 2013; Kawaguchi and Kubota, 1996; Peters, 1990; Staiger et al., 2004).”

    From GABAergic Interneurons in the Neocortex: From Cellular Properties to Circuits (2016) · cites this paper as David et al., 2007

    The discussion (Technical considerations; page not supplied) describes VIP-positive boutons arranged like baskets around PV-positive interneuron cell bodies, and the correlated microscopy analysis verifies somatic synapses on those cells. The paper discusses VIP effects on pyramidal cells but does not show VIP-containing boutons on pyramidal cells, so it supports only the interneuron-target part of the claim. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • VIP cells contact the perisomatic region of PV interneurons and also contact calbindin interneurons.

    “Work investigating the postsynaptic targets of VIP cells showed that these neurons contacted the perisomatic region of PV INs”

    From GABAergic Interneurons in the Neocortex: From Cellular Properties to Circuits (2016) · cites this paper as David et al., 2007

  • VIP-containing cortical inhibitory interneurons project to both somatostatin and parvalbumin containing interneurons and have an inhibitory action on these cell types.

    “VIP-containing cortical inhibitory interneurons project to both somatostatin (e.g. Martinotti) and parvalbumin (e.g. basket cells) containing interneurons and have an inhibitory action on these cell types (David et al., 2007; Jiang et al., 2013; Lee et al., 2013; Pi et al., 2013).”

    From Waking state: rapid variations modulate neural and behavioral responses (2015) · cites this paper as David et al., 2007

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Authors
Dávid, C., Schleicher, A., Zuschratter, W., & Staiger, J. F.
Affiliations
  • University of Freiburg (DE)
  • Heinrich Heine University Düsseldorf (DE)
  • Leibniz Institute for Neurobiology (DE)
Corresponding author
Dávid, Csaba
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2007-04
Volume
25
Issue
8
Pages
2329-2340
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W1535045684
Cited by
120
References
66
Citations by year
2026: 3 · 2025: 5 · 2024: 4 · 2023: 6 · 2022: 3 · 2021: 7 · 2020: 8 · 2019: 6 · 2018: 11 · 2017: 8 · 2016: 8 · 2015: 6 · 2014: 10 · 2013: 12 · 2012: 5
FWCI
1.19
Type
journal article
Language
en
Open access
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
parvalbumin interneurons, vasoactive intestinal peptide, primary somatosensory cortex, GABAergic interneurons, synaptic innervation, dendritic synapses, interneuron heterogeneity
MeSH terms
Animals, Fluorescent Dyes, gamma-Aminobutyric Acid, Interneurons, Male, Parvalbumins, Somatosensory Cortex, Synapses, Vasoactive Intestinal Peptide, Cluster Analysis, Rats, Wistar, Cell Shape, Rats

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