Cited by 117Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchDNA Repair Mechanisms

Contributions of DNA Damage to Alzheimer’s Disease

Open access
Lin, Xiaozeng, Kapoor, Anil, Gu, Yan, Chow, Mathilda Jing, Peng, Jingyi, Zhao, Kuncheng, Tang, Damu·2020·International Journal of Molecular Sciences

Abstract

Alzheimer’s disease (AD) is the most common type of neurodegenerative disease. Its typical pathology consists of extracellular amyloid-β (Aβ) plaques and intracellular tau neurofibrillary tangles. Mutations in the APP, PSEN1, and PSEN2 genes increase Aβ production and aggregation, and thus cause early onset or familial AD. Even with this strong genetic evidence, recent studies support AD to result from complex etiological alterations. Among them, aging is the strongest risk factor for the vast majority of AD cases: Sporadic late onset AD (LOAD). Accumulation of DNA damage is a well-established aging factor. In this regard, a large amount of evidence reveals DNA damage as a critical pathological cause of AD. Clinically, DNA damage is accumulated in brains of AD patients. Genetically, defects in DNA damage repair resulted from mutations in the BRAC1 and other DNA damage repair genes occur in AD brain and facilitate the pathogenesis. Abnormalities in DNA damage repair can be used as diagnostic biomarkers for AD. In this review, we discuss the association, the causative potential, and the biomarker values of DNA damage in AD pathogenesis.

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Crossref · 10.3390/ijms21051666

Cites

240 of 240 references verified0 citation errors · 0 not checkable

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  • DNA repair, Myc targets V1, and oxidative phosphorylation gene sets are linked to cellular damage or stress facilitating the progression of pathogenesis and contributing to neurodegeneration in AD.

    “Conversely, 5xFAD-Dp16 also exhibited greatly decreased NES for several gene sets, including DNA repair, Myc targets V1, and oxidative phosphorylation, all of which are linked to cellular damage or stress facilitating the progression of the pathogenesis and contributing to neurodegeneration in AD48,49,50 (Figures 3A and S3A).”

    From Interferon signaling modulates Down syndrome-associated Alzheimer’s disease pathology in a mouse model (2025) · cites this paper as [49]

    The Conclusions (page not available in our copy) link DNA damage and abnormalities in DNA repair to AD pathogenesis and neurodegeneration. The paper does not establish the claimed links for the Myc targets V1 or oxidative phosphorylation gene sets; searches for those terms found no supporting discussion. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • 5xFAD-Dp16 exhibited greatly decreased NES for several gene sets, including DNA repair, Myc targets V1, and oxidative phosphorylation.

    “Conversely, 5xFAD-Dp16 also exhibited greatly decreased NES for several gene sets, including DNA repair, Myc targets V1, and oxidative phosphorylation, all of which are linked to cellular damage or stress facilitating the progression of the pathogenesis and contributing to neurodegeneration in AD48,49,50 (Figures 3A and S3A).”

    From Interferon signaling modulates Down syndrome-associated Alzheimer’s disease pathology in a mouse model (2025) · cites this paper as [49]

    Section 2 (page unavailable) links impaired DNA repair and accumulated DNA damage to AD pathogenesis, supporting the sentence’s background point about cellular damage. The paper does not report decreased NES in 5xFAD-Dp16 for DNA repair, Myc targets V1, or oxidative phosphorylation; those specific results are not supported by this source. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Oxidative DNA damage and mitochondrial dysfunction are thought to contribute to neurodegeneration of AD, vascular dementia, HD, PD and epilepsy.

    “Oxidative DNA damage and mitochondrial dysfunction are thought to contribute to the neurodegeneration of AD [75,76], vascular dementia [77], HD [78], PD [79] and epilepsy [80].”

    From Rlip76: An Unexplored Player in Neurodegeneration and Alzheimer’s Disease? (2022) · cites this paper as [75]

    The cited source is attached to the AD portion of the sentence, not to the separately cited claims about vascular dementia, HD, PD, or epilepsy. Section 2, “Association of DNA Damage with Alzheimer’s Disease” (page unavailable), supports a contribution of oxidative DNA damage to AD pathogenesis. The retrieved passages do not establish the additional claim that mitochondrial dysfunction contributes to AD neurodegeneration; a reference title mentioning it is not enough. (LLM, conf=0.84)

    Experimental — accuracy not yet measured

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Authors
Lin, X., Kapoor, A., Gu, Y., Chow, M. J., Peng, J., Zhao, K., & Tang, D.
Affiliations
St. Joseph’s Healthcare Hamilton (CA)
Corresponding author
Tang, Damu
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2020-02-28
Volume
21
Issue
5
Pages
1666
ISSN
1422-0067 (ISSN-L)
OpenAlex
W3009111493
Cited by
117
References
241
Citations by year
2026: 15 · 2025: 19 · 2024: 22 · 2023: 18 · 2022: 19 · 2021: 16 · 2020: 5 · 2019: 2 · 2018: 1
FWCI
1.85
Type
journal article
Language
en
Open access
Locations
  • International Journal of Molecular Sciences (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Cancer Research Society (NA)
  • Canadian Cancer Society (319412)
  • Canadian Institutes of Health Research (NA)
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 › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
Alzheimer's disease, DNA damage, DNA repair, aging, amyloid plaques, neurofibrillary tangles, BRCA1, familial Alzheimer's disease, late-onset Alzheimer's disease, diagnostic biomarkers, neurodegeneration
MeSH terms
Alzheimer Disease, DNA Damage, DNA Repair, Humans, Models, Biological, Risk Factors, Neurogenesis

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