Cited by 104Neuroscience and Neuropharmacology ResearchGenetic Neurodegenerative DiseasesGenetics and Neurodevelopmental Disorders

Complex alteration of NMDA receptors in transgenic Huntington's disease mouse brain: analysis of mRNA and protein expression, plasma membrane association, interacting proteins, and phosphorylation

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Luthi-Carter, Ruth, Apostol, Barbara L, Dunah, Anthone W, DeJohn, Molly M, Farrell, Laurie A, Bates, Gillian P, Young, Anne B, Standaert, David G +2 more·2003·Neurobiology of Disease

Abstract

We analyzed NMDA receptor subunit mRNAs, proteins, and anchoring proteins in mice transgenic for exon 1 of the HD gene. R6/2 mice had decreased levels of mRNAs encoding epsilon1 and epsilon2 NMDA receptor subunits (mouse orthologs of rat NR2A and NR2B subunits), but not the zeta1 subunit (mouse ortholog of NR1), as assessed by gene expression profiling and Northern blotting. In situ hybridization resolved mRNA decreases spatially to the CA1 field of hippocampus. Western blotting revealed decreases in plasma membrane-associated epsilon1 and epsilon2 subunits in hippocampus, and decreases in plasma membrane-associated zeta1 subunit in cortex and hippocampus. In addition, PSD-95 and alpha-actinin-2, proteins essential for anchoring NMDA receptors, were decreased. Finally, we found a decreased level of tyrosine-phosphorylated epsilon1 subunit, another determinant of NMDA receptor trafficking, in R6/2 hippocampus. Taken together, these data demonstrate multiple levels of NMDA receptor dysregulation, including abnormalities in mRNA expression levels, receptor stoichiometry, protein phosphorylation, and receptor trafficking.

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Crossref · 10.1016/j.nbd.2003.08.024

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Authors
Luthi-Carter, R., Apostol, B. L., Dunah, A. W., DeJohn, M. M., Farrell, L. A., Bates, G. P., Young, A. B., Standaert, D. G., Thompson, L. M., & Cha, J.-H. J.
Affiliations
  • University of California, Irvine (US)
  • Massachusetts General Hospital (US)
  • Guy's Hospital (GB)
Corresponding author
Cha, Jang-Ho J
Venue
Neurobiology of Disease
Publisher
Elsevier BV
Published
2003-12
Volume
14
Issue
3
Pages
624-636
ISSN
0969-9961 (ISSN-L)
OpenAlex
W1975432299
Cited by
104
References
67
Citations by year
2026: 2 · 2025: 1 · 2022: 3 · 2020: 3 · 2019: 5 · 2018: 4 · 2017: 6 · 2016: 2 · 2015: 5 · 2014: 4 · 2013: 5 · 2012: 4
FWCI
2.43
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)
  • UCL Discovery (University College London) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
  • Leicester Research Archive (University of Leicester) (submittedVersion)
Funders
  • National Institute on Aging (AG10800)
  • National Institute of Neurological Disorders and Stroke (NS34361, NS38106, R01NS038106)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
NMDA receptor, Huntington's disease, R6/2 transgenic mice, PSD-95, ACTN2, tyrosine phosphorylation, receptor trafficking, hippocampus, CA1, gene expression profiling
MeSH terms
Huntingtin Protein, Disks Large Homolog 4 Protein, Actinin, Animals, Brain, Cell Membrane, Disease Models, Animal, Huntington Disease, Membrane Proteins, Mice, Transgenic, Mutation, Nerve Tissue Proteins, Nuclear Proteins, Phosphorylation, RNA, Messenger, Tyrosine, Receptors, N-Methyl-D-Aspartate, Protein Structure, Tertiary, Protein Subunits, Protein Transport, Intracellular Signaling Peptides and Proteins, Mice, Guanylate Kinases

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