Cited by 281Alzheimer's disease research and treatmentsDown syndrome and intellectual disability researchDementia and Cognitive Impairment Research

Overexpression of Dyrk1A contributes to neurofibrillary degeneration in down syndrome

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Liu, Fei, Liang, Zhihou, Wegiel, Jerzy, Hwang, Yu‐Wen, Iqbal, Khalid, Grundke‐Iqbal, Inge, Ramakrishna, Narayan, Gong, Cheng‐Xin·2008·The FASEB Journal

Abstract

Adults with Down syndrome (DS) develop Alzheimer neurofibrillary degeneration in the brain, but the underlying molecular mechanism is unknown. Here, we report that the presence of an extra copy of the dual‐specificity tyrosine‐phosphorylated and regulated kinase 1A ( Dyrk1A ) gene due to trisomy 21 resulted in overexpression of Dyrk1A and elevated kinase activity in DS brain. Dyrk1A phosphorylated tau at several sites, and these sites were hyperphosphory‐lated in adult DS brains. Phosphorylation of tau by Dyrk1A primed its further phosphorylation by glycogen synthase kinase‐3β (GSK‐3β). Dyrk1A‐induced tau phosphorylation inhibited tau's biological activity and promoted its self‐aggregation. In Ts65Dn mouse brain, an extra copy of the Dyrk1A gene caused increased expression and activity of Dyrk1A and resulted in increased tau phosphorylation. These findings strongly suggest a novel mechanism by which the overexpression of Dyrk1A in DS brain causes neurofibrillary degeneration via hyperphosphorylating tau. Liu, F., Liang, Z., Wegiel, J., Hwang, Y.‐W., Iqbal, K., Grundke‐Iqbal, I., Ramakrishna, N., Gong, C.‐X. Overexpression of Dyrk1A contributes to neurofibrillary degeneration in Down syndrome. FASEB J. 22, 3224–3233 (2008)

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  • An approximate 1.5-fold increase in DYRK1A from brain homogenates from 15-month-old Ts65Dn mice was observed.

    “An approximate 1.5-fold increase in DYRK1A was found in homogenates from brains from human adults with DS and ~ 1.5-fold increase in DYRK1A from brain homogenates from 15-month-old Ts65Dn mice was observed (Liu et al., 2008).”

    From Sex-specific developmental alterations in DYRK1A expression in the brain of a Down syndrome mouse model (2024) · cites this paper as Liu et al., 2008

    The Results report approximately 1.5-fold greater Dyrk1A expression in Ts65Dn mouse brains than in littermate controls. The passages in our copy do not specify that the mice were 15 months old, so that age qualifier is not supported. (LLM, conf=0.84)

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  • An approximate 1.5-fold increase in DYRK1A was found in homogenates from brains from human adults with DS.

    “An approximate 1.5-fold increase in DYRK1A was found in homogenates from brains from human adults with DS and ~ 1.5-fold increase in DYRK1A from brain homogenates from 15-month-old Ts65Dn mice was observed (Liu et al., 2008).”

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  1. Liu F, Grundke-Iqbal I, Iqbal K, Gong C-X. Contributions of various protein phosphatases in the regulation of phosphorylation of tau protein. Eur J Neurosci. 2005;22:1942–1950. doi: 10.1111/j.1460-9568.2005.04391.x. [DOI] [PubMed] [Google Scholar] · DOI · Paper page

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Authors
Liu, F., Liang, Z., Wegiel, J., Hwang, Y., Iqbal, K., Grundke‐Iqbal, I., Ramakrishna, N., & Gong, C.
Affiliations
  • Department of Neurochemistry New York State Institute for Basic Research in Developmental Disabilities Staten Island New York USA
  • Department of Developmental Neurobiology New York State Institute for Basic Research in Developmental Disabilities Staten Island New York USA
  • Department of Molecular Biology New York State Institute for Basic Research in Developmental Disabilities Staten Island New York USA
Venue
The FASEB Journal
Publisher
Wiley
Published
2008-05-28
Volume
22
Issue
9
Pages
3224-3233
ISSN
  • 0892-6638 (ISSN-L)
  • 1530-6860
OpenAlex
W1986503994
Cited by
272
References
62
Citations by year
2026: 19 · 2025: 16 · 2024: 18 · 2023: 17 · 2022: 20 · 2021: 18 · 2020: 13 · 2019: 13 · 2018: 11 · 2017: 23 · 2016: 8 · 2015: 11 · 2014: 15 · 2013: 16 · 2012: 9
FWCI
10.19
Type
journal article
Language
en
Open access
Locations
  • The FASEB Journal (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (AG027429, HD043960, HD038295, AG019158)
  • Alzheimer's Association (IIRG-05-13095)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Down syndrome and intellectual disability research
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
DYRK1A, Down syndrome, neurofibrillary degeneration, tau hyperphosphorylation, glycogen synthase kinase-3β, kinase activity, Ts65Dn mouse model, Alzheimer's disease
MeSH terms
Glycogen Synthase Kinase 3 beta, Dyrk Kinases, Aged, Aged, 80 and over, Animals, Down Syndrome, Female, Humans, Male, Middle Aged, Nerve Degeneration, Phosphorylation, Protein-Tyrosine Kinases, Neurofibrillary Tangles, tau Proteins, Protein Serine-Threonine Kinases, Gene Expression Regulation, Developmental, Glycogen Synthase Kinase 3, Mice

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