Cited by 71Genetic Syndromes and ImprintingParkinson's Disease Mechanisms and TreatmentsGenetics and Neurodevelopmental Disorders

Loss of dopaminergic neurons and resulting behavioural deficits in mouse model of Angelman syndrome

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Mulherkar, Shalaka A., Jana, Nihar Ranjan·2010·Neurobiology of Disease

Abstract

E6 associated protein is an E3 ubiquitin ligase encoded by the gene Ube3a. Deletion or loss of function of the maternally inherited allele of Ube3a leads to Angelman syndrome. In the present study, we show that maternal loss of Ube3a (Ube3a(m-/p+)) in the mouse model leads to motor deficits that could be attributed to the dysfunction of the nigrostriatal pathway. The number of tyrosine hydroxylase positive neurons in the substantia nigra was significantly reduced in Ube3a(m-/p+) mice as compared to the wild type counterparts. The Ube3a(m-/p+) mice performed poorly in behavioural paradigms sensitive to nigrostriatal dysfunction. Even though the tyrosine hydroxylase staining was apparently the same in the striatum of both genotypes, the presynaptic and postsynaptic proteins were significantly reduced in Ube3a(m-/p+) mice. These findings suggest that the abnormality in the nigrostriatal pathway along with the cerebellum produces the observed motor dysfunctions in Ube3a(m-/p+) mice.

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Crossref · 10.1016/j.nbd.2010.08.002

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Authors
Mulherkar, S. A., & Jana, N. R.
Affiliations
National Brain Research Centre (IN)
Corresponding author
Jana, Nihar Ranjan
Venue
Neurobiology of Disease
Publisher
Elsevier BV
Published
2010-12
Volume
40
Issue
3
Pages
586-592
ISSN
0969-9961 (ISSN-L)
OpenAlex
W2110956260
Cited by
71
References
32
Citations by year
2026: 3 · 2025: 3 · 2024: 2 · 2023: 1 · 2022: 1 · 2021: 6 · 2020: 2 · 2019: 5 · 2018: 3 · 2017: 7 · 2016: 6 · 2015: 6 · 2014: 6 · 2013: 4 · 2012: 11
FWCI
3.42
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Disease (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Department of Biotechnology, Government of India
  • Council of Scientific and Industrial Research, Government of India
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Syndromes and Imprinting
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
Angelman syndrome, UBE3A, E3 ubiquitin ligase, dopaminergic neurons, substantia nigra, nigrostriatal pathway, tyrosine hydroxylase, motor impairment, cerebellum, mouse model
MeSH terms
Animals, Behavior, Animal, Brain, Disease Models, Animal, Dopamine, Immunohistochemistry, Mice, Inbred C57BL, Motor Activity, Neurons, Angelman Syndrome, Ubiquitin-Protein Ligases, Mice

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