Cited by 572Alzheimer's disease research and treatmentsNeuroscience and Neuropharmacology ResearchNeuroinflammation and Neurodegeneration Mechanisms

Caspase-3 triggers early synaptic dysfunction in a mouse model of Alzheimer's disease

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D'Amelio, Marcello, Cavallucci, Virve, Middei, Silvia, Marchetti, Cristina, Pacioni, Simone, Ferri, Alberto, Diamantini, Adamo, De Zio, Daniela +7 more·2011·Nature Neuroscience

Abstract

Synaptic loss is the best pathological correlate of the cognitive decline in Alzheimer's disease; however, the molecular mechanisms underlying synaptic failure are unknown. We found a non-apoptotic baseline caspase-3 activity in hippocampal dendritic spines and an enhancement of this activity at the onset of memory decline in the Tg2576-APPswe mouse model of Alzheimer's disease. In spines, caspase-3 activated calcineurin, which in turn triggered dephosphorylation and removal of the GluR1 subunit of AMPA-type receptor from postsynaptic sites. These molecular modifications led to alterations of glutamatergic synaptic transmission and plasticity and correlated with spine degeneration and a deficit in hippocampal-dependent memory. Notably, pharmacological inhibition of caspase-3 activity in Tg2576 mice rescued the observed Alzheimer-like phenotypes. Our results identify a previously unknown caspase-3-dependent mechanism that drives synaptic failure and contributes to cognitive dysfunction in Alzheimer's disease. These findings indicate that caspase-3 is a potential target for pharmacological therapy during early disease stages.

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Crossref · 10.1038/nn.2709

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Authors
D'Amelio, M., Cavallucci, V., Middei, S., Marchetti, C., Pacioni, S., Ferri, A., Diamantini, A., De Zio, D., Carrara, P., Battistini, L., Moreno, S., Bacci, A., Ammassari-Teule, M., Marie, H., & Cecconi, F.
Affiliations
  • Dulbecco Telethon Institute (IT)
  • Fondazione Santa Lucia (IT)
  • European Brain Research Institute (IT)
  • Roma Tre University (IT)
  • University of Rome Tor Vergata (IT)
Corresponding author
Cecconi, Francesco
Venue
Nature Neuroscience
Published
2010-12-12
Volume
14
Issue
1
Pages
69-76
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2130473558
Cited by
572
References
52
Citations by year
2026: 14 · 2025: 25 · 2024: 21 · 2023: 38 · 2022: 39 · 2021: 43 · 2020: 38 · 2019: 27 · 2018: 45 · 2017: 32 · 2016: 35 · 2015: 36 · 2014: 48 · 2013: 56 · 2012: 35
FWCI
28.38
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • Cineca Institutional Research Information System (Tor Vergata University) (submittedVersion)
  • Iris (Roma Tre University) (submittedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
  • Trinity's Access to Research Output (TARA) (Trinity College Dublin) (submittedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
caspase-3, Alzheimer's disease, synaptic dysfunction, AMPA receptors, calcineurin, dendritic spines, hippocampus, fear memory, glutamatergic neurotransmission, synaptic plasticity, cognitive decline, caspase-3 inhibition
MeSH terms
Alzheimer Disease, Animals, Dipeptides, Disease Models, Animal, Gene Expression Regulation, Hippocampus, Memory Disorders, Mice, Transgenic, Nerve Degeneration, Synaptic Transmission, Oligopeptides, Polyglutamic Acid, Receptors, AMPA, Calcineurin, Long-Term Synaptic Depression, Dendritic Spines, Mice, Caspase 3, Caspase Inhibitors

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