Cited by 487DNA Repair MechanismsAlzheimer's disease research and treatmentsNeuroscience and Neuropharmacology Research

Physiologic brain activity causes DNA double-strand breaks in neurons, with exacerbation by amyloid-β

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Suberbielle, Elsa, Sanchez, Pascal E, Kravitz, Alexxai V, Wang, Xin, Ho, Kaitlyn, Eilertson, Kirsten, Devidze, Nino, Kreitzer, Anatol C +1 more·2013·Nature Neuroscience

Abstract

We show that a natural behavior, exploration of a novel environment, causes DNA double-strand breaks (DSBs) in neurons of young adult wild-type mice. DSBs occurred in multiple brain regions, were most abundant in the dentate gyrus, which is involved in learning and memory, and were repaired within 24 h. Increasing neuronal activity by sensory or optogenetic stimulation increased neuronal DSBs in relevant but not irrelevant networks. Mice transgenic for human amyloid precursor protein (hAPP), which simulate key aspects of Alzheimer's disease, had increased neuronal DSBs at baseline and more severe and prolonged DSBs after exploration. Interventions that suppress aberrant neuronal activity and improve learning and memory in hAPP mice normalized their levels of DSBs. Blocking extrasynaptic NMDA-type glutamate receptors prevented amyloid-β (Aβ)-induced DSBs in neuronal cultures. Thus, transient increases in neuronal DSBs occur as a result of physiological brain activity, and Aβ exacerbates DNA damage, most likely by eliciting synaptic dysfunction.

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Authors
Suberbielle, E., Sanchez, P. E., Kravitz, A. V., Wang, X., Ho, K., Eilertson, K., Devidze, N., Kreitzer, A. C., & Mucke, L.
Affiliations
Gladstone Institutes (US)
Corresponding author
Mucke, Lennart
Venue
Nature Neuroscience
Published
2013-03-24
Volume
16
Issue
5
Pages
613-621
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2056079743
Cited by
487
References
57
Citations by year
2026: 26 · 2025: 31 · 2024: 48 · 2023: 33 · 2022: 47 · 2021: 41 · 2020: 31 · 2019: 32 · 2018: 40 · 2017: 33 · 2016: 38 · 2015: 33 · 2014: 36 · 2013: 18
FWCI
18.65
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • HAL (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institute on Aging (AG011385, R37AG011385, AG022074, P01AG022074, R01AG011385)
  • National Institute of Neurological Disorders and Stroke (NS065780, P30NS065780)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
DNA double-strand breaks, neuronal activity, amyloid-beta, amyloid precursor protein, extrasynaptic NMDA receptors, optogenetic stimulation, novel environment exploration, dentate gyrus, DNA repair, Alzheimer's disease, synaptic dysfunction, learning and memory
MeSH terms
Channelrhodopsins, Animals, Animals, Newborn, Cells, Cultured, Cerebral Cortex, Corpus Striatum, Corticosterone, Disease Models, Animal, Exploratory Behavior, Gene Expression Regulation, Hippocampus, Histones, Humans, Mice, Inbred C57BL, Mice, Transgenic, Neurons, Photic Stimulation, Quinoxalines, Stress, Physiological, Valine, Amyloid beta-Peptides, Amyloid beta-Protein Precursor, tau Proteins, Reactive Oxygen Species, Excitatory Amino Acid Antagonists, Mice, DNA Breaks, Double-Stranded

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