Cited by 39Down syndrome and intellectual disability researchGenetics and Neurodevelopmental DisordersAlzheimer's disease research and treatments

Loss of correlations among proteins in brains of the Ts65Dn mouse model of down syndrome

Ahmed, Md. Mahiuddin, Sturgeon, Xiaolu, Ellison, Misoo, Davisson, Muriel T., Gardiner, Katheleen J.·2012·Journal of Proteome Research

Abstract

The Ts65Dn mouse model of Down syndrome (DS) is trisomic for orthologs of 88 of 161 classical protein coding genes present on human chromosome 21 (HSA21). Ts65Dn mice display learning and memory impairments and neuroanatomical, electrophysiological, and cellular abnormalities that are relevant to phenotypic features seen in DS; however, little is known about the molecular perturbations underlying the abnormalities. Here we have used reverse phase protein arrays to profile 64 proteins in the cortex, hippocampus, and cerebellum of Ts65Dn mice and littermate controls. Proteins were chosen to sample a variety of pathways and processes and include orthologs of HSA21 proteins and phosphorylation-dependent and -independent forms of non-HSA21 proteins. Protein profiles overall show remarkable stability to the effects of trisomy, with fewer than 30% of proteins altered in any brain region. However, phospho-proteins are less resistant to trisomy than their phospho-independent forms, and Ts65Dn display abnormalities in some key proteins. Importantly, we demonstrate that Ts65Dn mice have lost correlations seen in control mice among levels of functionally related proteins, including components of the MAP kinase pathway and subunits of the NMDA receptor. Loss of normal patterns of correlations may compromise molecular responses to stimulation and underlie deficits in learning and memory.

Integrity signals

Registry

Crossref · 10.1021/pr2011582

Cites

57 of 57 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • In 4 to 8-month-old Ts65Dn mice, DYRK1A was upregulated in the cortex, cerebellum, and hippocampus.

    “In 4 to 8-month-old Ts65Dn mice, DYRK1A was upregulated in the cortex, cerebellum, and hippocampus (Ahmed et al., 2012).”
  • Discordant outcomes between Dyrk1a RNA and protein expression in brain have been reported in older male Ts65Dn mice, although these comparisons came from different experiments.

    “Discordant outcomes between Dyrk1a RNA and protein expression in brain have been reported in older male Ts65Dn mice, although these comparisons came from different experiments (Ahmed et al., 2012; Choi et al., 2009; Sultan et al., 2007).”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ahmed, M. M., Sturgeon, X., Ellison, M., Davisson, M. T., & Gardiner, K. J.
Affiliations
  • University of Colorado Denver (US)
  • Colorado School of Public Health (US)
  • Jackson Laboratory (US)
Corresponding author
Gardiner, Katheleen J.
Venue
Journal of Proteome Research
Published
2012-01-25
Volume
11
Issue
2
Pages
1251-1263
ISSN
  • 1535-3893 (ISSN-L)
  • 1535-3907
OpenAlex
W1990879185
Cited by
39
References
57
Citations by year
2026: 1 · 2025: 3 · 2024: 3 · 2023: 1 · 2022: 4 · 2021: 4 · 2019: 1 · 2018: 3 · 2017: 5 · 2015: 5 · 2014: 2 · 2013: 4 · 2012: 3
FWCI
4.33
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Proteome Research (publishedVersion)
  • PubMed (publishedVersion)
  • The Mouseion at the JAXlibrary (Jackson Laboratory) (submittedVersion)
Funders
  • National Institutes of Health (n01hd073265-003, 5r01hd056235-05)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD73265, R01-HD056235, HD065235)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Down syndrome and intellectual disability research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
Ts65Dn mouse model, Down syndrome, trisomy, phosphoproteomics, MAPK signaling, NMDA receptor, learning and memory impairment, brain proteome, hippocampus, cortex, cerebellum
MeSH terms
Animals, Brain, Brain Chemistry, Disease Models, Animal, Down Syndrome, Female, Male, Mice, Transgenic, Nerve Tissue Proteins, Blotting, Western, Reproducibility of Results, Receptors, N-Methyl-D-Aspartate, Proteome, Protein Array Analysis, Extracellular Signal-Regulated MAP Kinases, Mice, Protein Interaction Maps

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review