Cited by 498Alzheimer's disease research and treatmentsDevelopmental Biology and Gene RegulationZebrafish Biomedical Research Applications

A γ‐secretase inhibitor blocks Notch signaling in vivo and causes a severe neurogenic phenotype in zebrafish

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Geling, Andrea, Steiner, Harald, Willem, Michael, Bally‐Cuif, Laure, Haass, Christian·2002·The EMBO Reports

Abstract

Inhibition of amyloid beta-peptide (Abeta) production by blocking gamma-secretase activity is at present one of the most promising therapeutic strategies to slow progression of Alzheimer's disease pathology. gamma-secretase inhibitors apparently block Abeta generation via interference with presenilin (PS) function. Besides being an essential component of the gamma-secretase complex, PS itself may be an aspartyl protease with gamma-secretase activity, which is not only required for Abeta production but also for a similar proteolytic process involved in Notch signaling. Here we demonstrate that treatment of zebrafish embryos with a known gamma-secretase inhibitor affects embryonic development in a manner indistinguishable from Notch signaling deficiencies at morphological, molecular and biochemical levels. This indicates severe side-effects of gamma-secretase inhibitors in any Notch-dependent cell fate decision and demonstrates that the zebrafish is an ideal vertebrate system to validate compounds that selectively affect Abeta production, but not Notch signaling, under in vivo conditions.

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Authors
Geling, A., Steiner, H., Willem, M., Bally‐Cuif, L., & Haass, C.
Affiliations
  • Technical University of Munich (DE)
  • Adolf-Butenandt-Institut für Physiologische Chemie, Physikalische Biochemie und Zellbiologie (DE)
Venue
The EMBO Reports
Published
2002-07-01
Volume
3
Issue
7
Pages
688-694
ISSN
  • 1469-221X (ISSN-L)
  • 1469-3178
OpenAlex
W2082694975
Cited by
497
References
56
Citations by year
2026: 7 · 2025: 13 · 2024: 12 · 2023: 7 · 2022: 13 · 2021: 15 · 2020: 14 · 2019: 27 · 2018: 13 · 2017: 17 · 2016: 25 · 2015: 16 · 2014: 19 · 2013: 28 · 2012: 34
FWCI
11.57
Type
journal article
Language
en
Open access
Locations
  • EMBO Reports (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Zebrafish Biomedical Research Applications
Keywords
gamma-secretase inhibitors, Notch signaling, presenilin, amyloid-beta, Alzheimer's disease, neurogenesis, zebrafish embryos, embryonic development, off-target effects, cell fate determination, adverse drug reactions
MeSH terms
Alzheimer Disease, Animals, Cell Line, Enzyme Inhibitors, gamma-Aminobutyric Acid, Humans, Membrane Proteins, Microinjections, Endopeptidases, Phenotype, RNA, Messenger, Triglycerides, Zebrafish, Signal Transduction, Aspartic Acid Endopeptidases, Amyloid beta-Protein Precursor, In Situ Hybridization, Body Patterning, Receptors, Notch, Presenilin-1, Amyloid Precursor Protein Secretases

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