Cited by 183Neural dynamics and brain functionSchizophrenia research and treatmentNeuroscience and Neuropharmacology Research

Somatostatin Interneurons Facilitate Hippocampal-Prefrontal Synchrony and Prefrontal Spatial Encoding

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Abbas, Atheir I., Sundiang, Marina J.M., Henoch, Britt, Morton, Mitchell P., Bolkan, Scott S., Park, Alan J., Harris, Alexander Z., Kellendonk, Christoph +1 more·2018·Neuron

Abstract

Decreased hippocampal-prefrontal synchrony may mediate cognitive deficits in schizophrenia, but it remains unclear which cells orchestrate this long-range synchrony. Parvalbumin (PV)- and somatostatin (SOM)-expressing interneurons show histological abnormalities in individuals with schizophrenia and are hypothesized to regulate oscillatory synchrony within the prefrontal cortex. To examine the relationship between interneuron function, long-range hippocampal-prefrontal synchrony, and cognition, we optogenetically inhibited SOM and PV neurons in the medial prefrontal cortex (mPFC) of mice performing a spatial working memory task while simultaneously recording neural activity in the mPFC and the hippocampus (HPC). We found that inhibiting SOM, but not PV, interneurons during the encoding phase of the task impaired working memory accuracy. This behavioral impairment was associated with decreased hippocampal-prefrontal synchrony and impaired spatial encoding in mPFC neurons. These findings suggest that interneuron dysfunction may contribute to cognitive deficits associated with schizophrenia by disrupting long-range synchrony between the HPC and PFC.

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Authors
Abbas, A. I., Sundiang, M. J. M., Henoch, B., Morton, M. P., Bolkan, S. S., Park, A. J., Harris, A. Z., Kellendonk, C., & Gordon, J. A.
Affiliations
  • New York State Psychiatric Institute (US)
  • National Institute of Mental Health (US)
Corresponding author
Gordon, Joshua A.
Venue
Neuron
Publisher
Elsevier BV
Published
2018-11
Volume
100
Issue
4
Pages
926-939.e3
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2896362483
Cited by
183
References
58
Citations by year
2026: 13 · 2025: 26 · 2024: 30 · 2023: 27 · 2022: 20 · 2021: 22 · 2020: 33 · 2019: 11
FWCI
9.81
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Seoul National University Open Repository (Seoul National University) (submittedVersion)
Funders
  • NIMH (R01 MH096274, T32 MH018870-29)
  • the Leon Levy Foundation
  • BBRF/NARSAD Young Investigator Grant
  • Irma Hirschl Trust
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
somatostatin interneurons, parvalbumin interneurons, medial prefrontal cortex, spatial working memory, spatial coding, schizophrenia, optogenetic inhibition, neural oscillations, cognitive impairment
MeSH terms
Animals, Hippocampus, Interneurons, Mice, Inbred C57BL, Neural Pathways, Parvalbumins, Somatostatin, Prefrontal Cortex, Mice, Mice, 129 Strain, Optogenetics

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