Cited by 358Neuroscience and Neuropharmacology ResearchMemory and Neural MechanismsNeural dynamics and brain function

Parvalbumin-Positive Basket Cells Differentiate among Hippocampal Pyramidal Cells

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Lee, Sang-Hun, Marchionni, Ivan, Bezaire, Marianne, Varga, Csaba, Danielson, Nathan, Lovett-Barron, Matthew, Losonczy, Attila, Soltesz, Ivan·2014·Neuron

Abstract

CA1 pyramidal cells (PCs) are not homogeneous but rather can be grouped by molecular, morphological, and functional properties. However, less is known about synaptic sources differentiating PCs. Using paired recordings in vitro, two-photon Ca(2+) imaging in vivo, and computational modeling, we found that parvalbumin-expressing basket cells (PVBCs) evoked greater inhibition in CA1 PCs located in the deep compared to superficial layer of stratum pyramidale. In turn, analysis of reciprocal connectivity revealed more frequent excitatory inputs to PVBCs by superficial PCs, demonstrating bias in target selection by both the excitatory and inhibitory local connections in CA1. Additionally, PVBCs further segregated among deep PCs, preferentially innervating the amygdala-projecting PCs but receiving preferential excitation from the prefrontal cortex-projecting PCs, thus revealing distinct perisomatic inhibitory interactions between separate output channels. These results demonstrate the presence of heterogeneous PVBC-PC microcircuits, potentially contributing to the sparse and distributed structure of hippocampal network activity.

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Crossref · 10.1016/j.neuron.2014.03.034

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  • Multiple studies strongly suggest that subtype specific microcircuits indeed exist, even among PVBCs.

    “However, multiple studies have challenged this view and strongly suggest that subtype specific microcircuits indeed exist, even among PVBCs (650, 656, 1230, 1252).”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [656]

  • In the hippocampus, PVBCs evoke larger amplitude IPSCs in PCs located near s.o. than those near s.r. (deep vs. superficial).

    “Furthermore, in the hippocampus, PVBCs evoke larger amplitude IPSCs in PCs located near s.o. than those near s.r. (i.e., deep vs. superficial) (656) (FIGURE 8A).”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [656]

  • In CA1 of the hippocampus, PVBCs are more likely to be innervated by and receive the largest excitatory drive from prefrontal cortex projecting PCs.

    “Finally, in CA1 of the hippocampus, PVBCs evoke larger IPSCs in PCs that project to the amygdala than those that project to the prefrontal cortex; conversely, PVBCs are more likely to be innervated by and receive the largest excitatory drive from prefrontal cortex projecting PCs (656) (FIGURE 8E).”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [656]

  • In CA1 of the hippocampus, PVBCs evoke larger IPSCs in PCs that project to the amygdala than those that project to the prefrontal cortex.

    “Finally, in CA1 of the hippocampus, PVBCs evoke larger IPSCs in PCs that project to the amygdala than those that project to the prefrontal cortex; conversely, PVBCs are more likely to be innervated by and receive the largest excitatory drive from prefrontal cortex projecting PCs (656) (FIGURE 8E).”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [656]

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Research works printed but not linked: 1

  1. Halasy K Buhl EH Lörinczi Z Tamás G Somogyi P 1996 Synaptic target selectivity and input of GABAergic basket and bistratified interneurons in the CA1 area of the rat hippocampus Hippocampus 6 306 329 8841829

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Authors
Lee, S.-H., Marchionni, I., Bezaire, M., Varga, C., Danielson, N., Lovett-Barron, M., Losonczy, A., & Soltesz, I.
Affiliations
  • University of California, Irvine (US)
  • Columbia University (US)
Corresponding author
Lee, Sang-Hun
Venue
Neuron
Publisher
Elsevier BV
Published
2014-06
Volume
82
Issue
5
Pages
1129-1144
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2033044289
Cited by
358
References
44
Citations by year
2026: 18 · 2025: 34 · 2024: 42 · 2023: 29 · 2022: 26 · 2021: 31 · 2020: 23 · 2019: 26 · 2018: 37 · 2017: 28 · 2016: 27 · 2015: 30 · 2014: 6
FWCI
13.86
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion, other-oa)
Funders
  • Natural Sciences and Engineering Research Council of Canada
  • National Science Foundation (DGE-0808392, TG-IBN130022, TG-IBN100011)
  • McKnight Foundation
  • National Institutes of Health (NS74432)
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
parvalbumin basket cells, CA1 pyramidal neurons, perisomatic inhibition, synaptic connectivity, reciprocal connections, stratum pyramidale, paired recordings, two-photon calcium imaging, computational modeling
MeSH terms
Amygdala, Animals, Calcium, Female, Male, Mice, Inbred C57BL, Nerve Net, Parvalbumins, Physical Conditioning, Animal, Prefrontal Cortex, Pyramidal Cells, Entorhinal Cortex, Mice, CA1 Region, Hippocampal

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