Cited by 266Alzheimer's disease research and treatmentsNeurobiology and Insect Physiology ResearchGenetics, Aging, and Longevity in Model Organisms

The DOI matches its Crossref record; 52 of the 52 references it cites were found in a registry or an index.

TOR-Mediated Cell-Cycle Activation Causes Neurodegeneration in a Drosophila Tauopathy Model

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Khurana, Vikram, Lu, Yiran, Steinhilb, Michelle L., Oldham, Sean, Shulman, Joshua M., Feany, Mel B.·2006·Current Biology

Abstract

Background Previous studies have demonstrated reexpression of cell-cycle markers within postmitotic neurons in neurodegenerative tauopathies, including Alzheimer's disease (AD). However, the critical questions of whether cell-cycle activation is causal or epiphenomenal to tau-induced neurodegeneration and which signaling pathways mediate cell-cycle activation in tauopathy remain unresolved. Results Cell-cycle activation accompanies wild-type and mutant tau-induced neurodegeneration in Drosophila, and genetically interfering with cell-cycle progression substantially reduces neurodegeneration. Our data support a role for cell-cycle activation downstream of tau phosphorylation, directly preceding apoptosis. We accordingly show that ectopic cell-cycle activation leads to apoptosis of postmitotic neurons in vivo. As in AD, TOR (target of rapamycin kinase) activity is increased in our model and is required for neurodegeneration. TOR activation enhances tau-induced neurodegeneration in a cell cycle-dependent manner and, when ectopically activated, drives cell-cycle activation and apoptosis in postmitotic neurons. Conclusions TOR-mediated cell-cycle activation causes neurodegeneration in a Drosophila tauopathy model, identifying TOR and the cell cycle as potential therapeutic targets in tauopathies and AD.

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Crossref · 10.1016/j.cub.2005.12.042

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Authors
Khurana, V., Lu, Y., Steinhilb, M. L., Oldham, S., Shulman, J. M., & Feany, M. B.
Affiliations
  • Brigham and Women's Hospital (US)
  • Sanford Burnham Prebys Medical Discovery Institute (US)
Venue
Current Biology
Publisher
Elsevier BV
Published
2006-02
Volume
16
Issue
3
Pages
230-241
ISSN
0960-9822 (ISSN-L)
OpenAlex
W2064587868
Cited by
266
References
52
Citations by year
2026: 4 · 2025: 6 · 2024: 8 · 2023: 9 · 2022: 8 · 2021: 12 · 2020: 14 · 2019: 12 · 2018: 14 · 2017: 9 · 2016: 10 · 2015: 18 · 2014: 17 · 2013: 16 · 2012: 18
FWCI
11.96
Type
journal article
Language
en
Open access
Locations
  • Current Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Aging (AG-19790, AG88001, R01AG019790)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
tauopathy, neurodegeneration, TOR signaling, cell cycle re-entry, postmitotic neurons, tau phosphorylation, apoptosis, Alzheimer's disease, Drosophila model, therapeutic target
MeSH terms
Animals, Cell Cycle, Drosophila, Enzyme Activation, Immunohistochemistry, Neurons, Protein Kinases, Blotting, Western, Signal Transduction, Apoptosis, Phosphatidylinositol 3-Kinases, In Situ Nick-End Labeling, Tauopathies, Drosophila Proteins, TOR Serine-Threonine Kinases

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