Cited by 127Neuroscience and Neuropharmacology ResearchSchizophrenia research and treatmentNeurotransmitter Receptor Influence on Behavior

Spine pruning drives antipsychotic-sensitive locomotion via circuit control of striatal dopamine

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Kim, Il Hwan, Rossi, Mark A, Aryal, Dipendra K, Racz, Bence, Kim, Namsoo, Uezu, Akiyoshi, Wang, Fan, Wetsel, William C +3 more·2015·Nature Neuroscience

Abstract

Psychiatric and neurodevelopmental disorders may arise from anomalies in long-range neuronal connectivity downstream of pathologies in dendritic spines. However, the mechanisms that may link spine pathology to circuit abnormalities relevant to atypical behavior remain unknown. Using a mouse model to conditionally disrupt a critical regulator of the dendritic spine cytoskeleton, the actin-related protein 2/3 complex (Arp2/3), we report here a molecular mechanism that unexpectedly reveals the inter-relationship of progressive spine pruning, elevated frontal cortical excitation of pyramidal neurons and striatal hyperdopaminergia in a cortical-to-midbrain circuit abnormality. The main symptomatic manifestations of this circuit abnormality are psychomotor agitation and stereotypical behaviors, which are relieved by antipsychotics. Moreover, this antipsychotic-responsive locomotion can be mimicked in wild-type mice by optogenetic activation of this circuit. Collectively these results reveal molecular and neural-circuit mechanisms, illustrating how diverse pathologies may converge to drive behaviors relevant to psychiatric disorders.

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Authors
Kim, I. H., Rossi, M. A., Aryal, D. K., Racz, B., Kim, N., Uezu, A., Wang, F., Wetsel, W. C., Weinberg, R. J., Yin, H., & Soderling, S. H.
Affiliations
  • Duke University (US)
  • University of North Carolina at Chapel Hill (US)
Corresponding author
  • Kim, Il Hwan
  • Soderling, Scott H
Venue
Nature Neuroscience
Published
2015-05-04
Volume
18
Issue
6
Pages
883-891
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W1808025664
Cited by
127
References
54
Citations by year
2026: 2 · 2025: 5 · 2024: 6 · 2023: 11 · 2022: 13 · 2021: 8 · 2020: 11 · 2019: 10 · 2018: 16 · 2017: 15 · 2016: 21 · 2015: 9
FWCI
9.49
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Repository of the Academy's Library (Library of the Hungarian Academy of Sciences) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
  • National Science Foundation
  • North Carolina Biotechnology Center
  • Hungarian Scientific Research Fund (K83830)
  • Magyar Tudományos Akadémia
  • Szent István Egyetem
  • National Institutes of Health (AA021074, NS059957)
  • National Institute on Alcohol Abuse and Alcoholism (AA021074, R01AA021074)
  • National Institute of Mental Health (U19MH082441, MH103374, MH082411, R01MH103374)
  • National Institute of Neurological Disorders and Stroke (R01NS039444, NS 077986, R01NS059957, R01NS077986, NS039444, R56NS059957, NS059957)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
Arp2/3 complex, actin cytoskeleton, striatal dopamine, hyperdopaminergia, psychomotor agitation, antipsychotic treatment response, cortical excitation, pyramidal neurons, stereotypy, locomotion, mental illness, neurodevelopmental disorders, optogenetic stimulation
MeSH terms
Angiopoietin-like Proteins, Angiopoietin-Like Protein 2, Animals, Dopamine, Female, Locomotion, Male, Mesencephalon, Mutation, Nerve Net, Psychomotor Agitation, Stereotyped Behavior, Antipsychotic Agents, Neostriatum, Prefrontal Cortex, Pyramidal Cells, Mice, Knockout, Patch-Clamp Techniques, Angiopoietins, Dendritic Spines, Actin-Related Protein 3, Mice, Optogenetics

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