Cited by 106Schizophrenia research and treatmentIon channel regulation and functionNeuroscience and Neuropharmacology Research

Kv3.1-containing K channels are reduced in untreated schizophrenia and normalized with antipsychotic drugs

Yanagi, M, Joho, R H, Southcott, S A, Shukla, A A, Ghose, S, Tamminga, C A·2014·Molecular Psychiatry

Abstract

Neuronal firing is a fundamental element of cerebral function; and, voltage-gated potassium (K(+)) channels regulate that firing through the repolarization of action potentials. Kv3-type channels (Kv3.1-Kv3.4) represent a family of voltage-gated K(+) channels that have fast-spiking properties. Kv3.1 channel subunits are predominantly localized to cortical parvalbumin (PV)-positive, inhibitory interneurons. The firing properties of these interneurons participate in establishing the normal gamma oscillations and synchrony of cortical neuronal populations, thought to be the signature of higher information processing in human brain. Schizophrenia (SZ) is associated with abnormalities in cortical gamma synchrony and in information processing, particularly with dysfunction in working memory and executive function. Here, we report the distribution of Kv3.1b and Kv3.2 protein in normal human brain, showing that Kv3.1b is limited to neocortical areas, whereas Kv3.2 is abundantly represented in neo- and subcortical regions. In SZ cases, levels of Kv3.1b protein are decreased in the neocortex, but only in cases without antipsychotic drug (APD) treatment; Kv3.1 levels are normal in antipsychotic-treated cases. Kv3.2 is not different in distribution or in level between normal and SZ cases, nor influenced by APD, in any region tested. The apparent increase in Kv3.1b protein levels by APDs in SZ neocortex was confirmed in laboratory rodents treated with chronic APDs. These findings show a decrease in Kv3.1b channel protein in SZ neocortex, a deficit that is restored by APDs. This alteration could be fundamentally involved in the cortical manifestations of SZ and in the therapeutic response to APDs.

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Crossref · 10.1038/mp.2013.49

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  • Ion homeostasis disrupted by PNN loss might help drive the brain-function changes seen in schizophrenia.

    “distorted ion homeostasis resulting from PNN deficit could be important in mediating alterations in brain function associated with schizophrenia”

    From Perineuronal nets and schizophrenia: The importance of neuronal coatings (2014) · cites this paper as Yanagi et al., 2013

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Authors
Yanagi, M., Joho, R. H., Southcott, S. A., Shukla, A. A., Ghose, S., & Tamminga, C. A.
Affiliations
The University of Texas Southwestern Medical Center (US)
Corresponding author
Tamminga, C A
Venue
Molecular Psychiatry
Published
2013-04-30
Volume
19
Issue
5
Pages
573-579
ISSN
  • 1359-4184 (ISSN-L)
  • 1476-5578
OpenAlex
W2018625865
Cited by
102
References
49
Citations by year
2026: 3 · 2025: 7 · 2024: 9 · 2023: 10 · 2022: 7 · 2021: 26 · 2020: 4 · 2019: 4 · 2018: 4 · 2017: 11 · 2016: 5 · 2015: 7 · 2014: 4 · 2013: 1
FWCI
4.03
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (MH062236, R01MH083957, MH 83957, R01MH062236)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ion channel regulation and function
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
voltage-gated potassium channels, schizophrenia, antipsychotic drugs, parvalbumin interneurons, neocortex, gamma oscillations, neuronal firing, treatment response, chronic antipsychotic treatment, rodent models
MeSH terms
Animals, Brain, Haloperidol, Humans, RNA, Messenger, Schizophrenia, Antipsychotic Agents, Cohort Studies, Treatment Outcome, Risperidone, Neocortex, Rats, Shaw Potassium Channels

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