Cited by 147Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

A Genomic Screen for Modifiers of Tauopathy Identifies Puromycin-Sensitive Aminopeptidase as an Inhibitor of Tau-Induced Neurodegeneration

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Karsten, Stanislav L., Sang, Tzu-Kang, Gehman, Lauren T., Chatterjee, Shreyasi, Liu, Jiankai, Lawless, George M., Sengupta, Soma, Berry, Robert W. +9 more·2006·Neuron

Abstract

Neurofibrillary tangles (NFT) containing tau are a hallmark of neurodegenerative diseases, including Alzheimer's disease (AD). NFT burden correlates with cognitive decline and neurodegeneration in AD. However, little is known about mechanisms that protect against tau-induced neurodegeneration. We used a cross species functional genomic approach to analyze gene expression in multiple brain regions in mouse, in parallel with validation in Drosophila, to identify tau modifiers, including the highly conserved protein puromycin-sensitive aminopeptidase (PSA/Npepps). PSA protected against tau-induced neurodegeneration in vivo, whereas PSA loss of function exacerbated neurodegeneration. We further show that human PSA directly proteolyzes tau in vitro. These data highlight the utility of using both evolutionarily distant species for genetic screening and functional assessment to identify modifiers of neurodegeneration. Further investigation is warranted in defining the role of PSA and other genes identified here as potential therapeutic targets in tauopathy.

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Authors
Karsten, S. L., Sang, T.-K., Gehman, L. T., Chatterjee, S., Liu, J., Lawless, G. M., Sengupta, S., Berry, R. W., Pomakian, J., Oh, H. S., Schulz, C., Hui, K.-S., Wiedau-Pazos, M., Vinters, H. V., Binder, L. I., Geschwind, D. H., & Jackson, G. R.
Affiliations
  • University of California, Los Angeles (US)
  • Northwestern University (US)
  • Kyungwoon University (KR)
  • Cold Spring Harbor Laboratory (US)
  • Nathan Kline Institute for Psychiatric Research (US)
Corresponding author
  • Geschwind, Daniel H.
  • Jackson, George R.
Venue
Neuron
Publisher
Elsevier BV
Published
2006-09
Volume
51
Issue
5
Pages
549-560
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2041544905
Cited by
147
References
69
Citations by year
2026: 6 · 2025: 5 · 2024: 7 · 2023: 6 · 2022: 2 · 2021: 8 · 2020: 3 · 2019: 4 · 2018: 11 · 2017: 5 · 2016: 1 · 2015: 5 · 2014: 7 · 2013: 8 · 2012: 10
FWCI
7.17
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Cold Spring Harbor Laboratory Institutional Repository (Cold Spring Harbor Laboratory) (acceptedVersion)
Funders
Alzheimer's Disease Research Foundation
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
tauopathy, neurofibrillary tangles, puromycin-sensitive aminopeptidase, Alzheimer's disease, Drosophila, mice, therapeutic target
MeSH terms
Aminopeptidases, Animals, Brain, Drosophila, Humans, Immunohistochemistry, Mice, Transgenic, Nerve Degeneration, Blotting, Northern, Blotting, Western, Neurofibrillary Tangles, tau Proteins, In Situ Hybridization, Oligonucleotide Array Sequence Analysis, Gene Expression Profiling, Tauopathies, Mice

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