Cited by 80Genetic Syndromes and ImprintingMitochondrial Function and PathologyGenetics and Neurodevelopmental Disorders

Mitochondrial dysfunction in CA1 hippocampal neurons of the UBE3A deficient mouse model for Angelman syndrome

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Su, Hailing, Fan, Weiwei, Coskun, Pinar E., Vesa, Jouni, Gold, June-Anne, Jiang, Yong-Hui, Potluri, Prasanth, Procaccio, Vincent +4 more·2011·Neuroscience Letters

Abstract

Angelman syndrome (AS) is a severe neurological disorder caused by a deficiency of ubiquitin protein ligase E3A (UBE3A), but the pathophysiology of the disease remains unknown. We now report that in the brains of AS mice in which the maternal UBE3A allele is mutated (m-) and the paternal allele is potentially inactivated by imprinting (p+) (UBE3A m-\p+), the mitochondria are abnormal and exhibit a partial oxidative phosphorylation (OXPHOS) defect. Electron microscopy of the hippocampal region of the UBE3A m-\p+ mice (n=6) reveals small, dense mitochondria with altered cristae, relative to wild-type littermates (n=6) and reduced synaptic vesicle density. The specific activity of OXPHOS complex III is reduced in whole brain mitochondria in UBE3A m-\p+ (n=5) mice versus wild-type littermates (n=5). Therefore, mitochondrial dysfunction may contribute to the pathophysiology of Angelman syndrome.

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  • In hippocampal CA1 neurons of Ube3am−/p+ mice, presynaptic vesicle density, spine density, and spine length are lower than in wild-type controls.

    “Also, the density of presynaptic vesicles, as well as spine density and length, in hippocampal CA1 neurons is lower compared to WT controls [342].”

    From Autism spectrum disorder: neuropathology and animal models (2017) · cites this paper as [342]

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Authors
Su, H., Fan, W., Coskun, P. E., Vesa, J., Gold, J.-A., Jiang, Y.-H., Potluri, P., Procaccio, V., Acab, A., Weiss, J. H., Wallace, D. C., & Kimonis, V. E.
Affiliations
  • University of California, Irvine (US)
  • Baylor College of Medicine (US)
Corresponding author
Kimonis, Virginia E.
Venue
Neuroscience Letters
Publisher
Elsevier BV
Published
2011-01
Volume
487
Issue
2
Pages
129-133
ISSN
0304-3940 (ISSN-L)
OpenAlex
W2043701381
Cited by
80
References
27
Citations by year
2026: 2 · 2025: 3 · 2024: 8 · 2023: 4 · 2022: 2 · 2021: 8 · 2020: 6 · 2019: 3 · 2018: 4 · 2017: 4 · 2016: 11 · 2015: 5 · 2014: 7 · 2013: 5 · 2012: 2
FWCI
1.55
Type
journal article
Language
en
Open access
Locations
  • Neuroscience Letters (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • HAL (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
Funders
  • Rare Diseases Clinical Research Network
  • National Institute on Aging (AG 16573, AG-13154, R01AG024373, P50AG016573, AG24373, R01AG013154)
  • National Institute of Neurological Disorders and Stroke (NS-21328, NS 41850, R01NS021328, R01NS041850)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (R01AR050236)
  • National Center for Research Resources (U54RR019478, M01RR000827)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (K12HD043494)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Syndromes and Imprinting
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
Angelman syndrome, UBE3A, mitochondrial dysfunction, hippocampal neurons, CA1, oxidative phosphorylation, cytochrome bc1 complex, mitochondrial cristae, synaptic vesicles, genomic imprinting, mouse model
MeSH terms
Animals, Disease Models, Animal, Female, Genotype, Male, Mice, Transgenic, Mitochondria, Neurons, Purkinje Cells, Synaptic Vesicles, Angelman Syndrome, Mice, Knockout, Ubiquitin-Protein Ligases, Mice, CA1 Region, Hippocampal

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