Cited by 89Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchAutism Spectrum Disorder Research

Reorganization of Circuits Underlying Cerebellar Modulation of Prefrontal Cortical Dopamine in Mouse Models of Autism Spectrum Disorder

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Rogers, Tiffany D., Dickson, Price E., McKimm, Eric, Heck, Detlef H., Goldowitz, Dan, Blaha, Charles D., Mittleman, Guy·2013·The Cerebellum

Abstract

Imaging, clinical, and pre-clinical studies have provided ample evidence for a cerebellar involvement in cognitive brain function including cognitive brain disorders, such as autism and schizophrenia. We previously reported that cerebellar activity modulates dopamine release in the mouse medial prefrontal cortex (mPFC) via two distinct pathways: (1) cerebellum to mPFC via dopaminergic projections from the ventral tegmental area (VTA) and (2) cerebellum to mPFC via glutamatergic projections from the mediodorsal and ventrolateral thalamus (ThN md and vl). The present study compared functional adaptations of cerebello-cortical circuitry following developmental cerebellar pathology in a mouse model of developmental loss of Purkinje cells (Lurcher) and a mouse model of fragile X syndrome (Fmr1 KO mice). Fixed potential amperometry was used to measure mPFC dopamine release in response to cerebellar electrical stimulation. Mutant mice of both strains showed an attenuation in cerebellar-evoked mPFC dopamine release compared to respective wildtype mice. This was accompanied by a functional reorganization of the VTA and thalamic pathways mediating cerebellar modulation of mPFC dopamine release. Inactivation of the VTA pathway by intra-VTA lidocaine or kynurenate infusions decreased dopamine release by 50 % in wildtype and 20-30 % in mutant mice of both strains. Intra-ThN vl infusions of either drug decreased dopamine release by 15 % in wildtype and 40 % in mutant mice of both strains, while dopamine release remained relatively unchanged following intra-ThN md drug infusions. These results indicate a shift in strength towards the thalamic vl projection, away from the VTA. Thus, cerebellar neuropathologies associated with autism spectrum disorders may cause a reduction in cerebellar modulation of mPFC dopamine release that is related to a reorganization of the mediating neuronal pathways.

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Authors
Rogers, T. D., Dickson, P. E., McKimm, E., Heck, D. H., Goldowitz, D., Blaha, C. D., & Mittleman, G.
Affiliations
  • University of Memphis (US)
  • University of Tennessee Health Science Center (US)
  • University of British Columbia (CA)
Corresponding author
Blaha, Charles D.
Venue
The Cerebellum
Published
2013-02-26
Volume
12
Issue
4
Pages
547-556
ISSN
  • 1473-4222 (ISSN-L)
  • 1473-4230
OpenAlex
W2091901281
Cited by
89
References
66
Citations by year
2026: 2 · 2025: 4 · 2024: 5 · 2023: 5 · 2022: 3 · 2021: 8 · 2020: 9 · 2019: 13 · 2018: 6 · 2017: 4 · 2016: 8 · 2015: 7 · 2014: 5 · 2013: 9 · 2012: 1
FWCI
4.74
Type
journal article
Language
en
Open access
Locations
  • The Cerebellum (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute of Neurological Disorders and Stroke (R01NS063009)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
Keywords
cerebellum, medial prefrontal cortex, dopamine release, autism spectrum disorder, ventral tegmental area, thalamus, mediodorsal thalamus, ventrolateral thalamic nucleus, Purkinje cell degeneration, fragile X syndrome, Fmr1 knockout mice, circuit reorganization, lidocaine, kynurenic acid
MeSH terms
Animals, Cerebellum, Child Development Disorders, Pervasive, Disease Models, Animal, Dopamine, Kynurenic Acid, Lidocaine, Male, Mice, Inbred CBA, Mice, Neurologic Mutants, Nerve Net, Neuronal Plasticity, Prefrontal Cortex, Mice, Knockout, Mice, Mice, 129 Strain, Infusions, Intraventricular

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