Cited by 82Autism Spectrum Disorder ResearchGenetics and Neurodevelopmental DisordersNeuroscience and Neuropharmacology Research

Repetitive behavior and increased activity in mice with Purkinje cell loss: a model for understanding the role of cerebellar pathology in autism

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Martin, Loren A., Goldowitz, Dan, Mittleman, Guy·2010·European Journal of Neuroscience

Abstract

Repetitive behaviors and hyperactivity are common features of developmental disorders, including autism. Neuropathology of the cerebellum is also a frequent occurrence in autism and other developmental disorders. Recent studies have indicated that cerebellar pathology may play a causal role in the generation of repetitive and hyperactive behaviors. In this study, we examined the relationship between cerebellar pathology and these behaviors in a mouse model of Purkinje cell loss. Specifically, we made aggregation chimeras between Lc/+ mutant embryos and +/+ embryos. Lc/+ mice lose 100% of their Purkinje cells postnatally due to a cell‐intrinsic gain‐of‐function mutation. Through our histological examination, we demonstrated that Lc/+↔+/+ chimeric mice have Purkinje cells ranging from zero to normal numbers. Our analysis of these chimeric cerebella confirmed previous studies on Purkinje cell lineage. The results of both open‐field activity and hole‐board exploration testing indicated negative relationships between Purkinje cell number and measures of activity and investigatory nose‐poking. Additionally, in a progressive‐ratio operant paradigm, we found that Lc/+ mice lever‐pressed significantly less than +/+ controls, which led to significantly lower breakpoints in this group. In contrast, chimeric mice lever‐pressed significantly more than controls and this repetitive lever‐pressing behavior was significantly and negatively correlated with total Purkinje cell numbers. Although the performance of Lc/+ mice is probably related to their motor deficits, the significant relationships between Purkinje cell number and repetitive lever‐pressing behavior as well as open‐field activity measures provide support for a role of cerebellar pathology in generating repetitive behavior and increased activity in chimeric mice.

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Authors
Martin, L. A., Goldowitz, D., & Mittleman, G.
Affiliations
  • Azusa Pacific University (US)
  • University of Tennessee Health Science Center (US)
  • University of Memphis (US)
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2010-02
Volume
31
Issue
3
Pages
544-555
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2035069442
Cited by
82
References
47
Citations by year
2026: 2 · 2025: 1 · 2024: 5 · 2023: 5 · 2022: 4 · 2021: 5 · 2020: 5 · 2019: 2 · 2018: 2 · 2017: 2 · 2016: 7 · 2015: 7 · 2014: 4 · 2013: 11 · 2012: 11
FWCI
6.00
Type
journal article
Language
en
Open access
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute of Neurological Disorders and Stroke (R01NS063009)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
Purkinje cell degeneration, cerebellar pathology, autism spectrum disorder, repetitive behavior, hyperactivity, open field behavior, nose-poking, motor impairment
MeSH terms
Animals, Autistic Disorder, Behavior, Animal, Cerebellum, Child, Chimera, Female, Humans, Male, Mice, Neurologic Mutants, Motor Activity, Neuropsychological Tests, Pregnancy, Purkinje Cells, Mice

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