Cited by 25Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchGenetic Associations and Epidemiology

A Mutation in DAOA Modifies the Age of Onset in PSEN1 E280A Alzheimer’s Disease

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Vélez, Jorge I., Rivera, Dora, Mastronardi, Claudio A., Patel, Hardip R., Tobón, Carlos, Villegas, Andrés, Cai, Yeping, Easteal, Simon +2 more·2016·Neural Plasticity

Abstract

We previously reported age of onset (AOO) modifier genes in the world's largest pedigree segregating early-onset Alzheimer's disease (AD), caused by the p.Glu280Ala (E280A) mutation in the PSEN1 gene. Here we report the results of a targeted analysis of functional exonic variants in those AOO modifier genes in sixty individuals with PSEN1 E280A AD who were whole-exome genotyped for ~250,000 variants. Standard quality control, filtering, and annotation for functional variants were applied, and common functional variants located in those previously reported as AOO modifier loci were selected. Multiloci linear mixed-effects models were used to test the association between these variants and AOO. An exonic missense mutation in the G72 (DAOA) gene (rs2391191, P = 1.94 × 10(-4), P FDR = 9.34 × 10(-3)) was found to modify AOO in PSEN1 E280A AD. Nominal associations of missense mutations in the CLUAP1 (rs9790, P = 7.63 × 10(-3), P FDR = 0.1832) and EXOC2 (rs17136239, P = 0.0325, P FDR = 0.391) genes were also found. Previous studies have linked polymorphisms in the DAOA gene with the occurrence of neuropsychiatric symptoms such as depression, apathy, aggression, delusions, hallucinations, and psychosis in AD. Our findings strongly suggest that this new conspicuous functional AOO modifier within the G72 (DAOA) gene could be pivotal for understanding the genetic basis of AD.

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  • Other genetic variants identified as modifiers or protective against familial Alzheimer's disease (FAD) delay Alzheimer's disease (AD) onset and are related to astrocyte genes, ubiquitin-proteasome function, and p-tau degradation.

    “Other genetic variants that have also been identified as modifiers or protective against FAD, delay AD‐onset and are related to astrocyte genes, ubiquitin‐proteasome function, and p‐tau degradation [61, 126, 129]”

    From Gliovascular alterations in sporadic and familial Alzheimer's disease: <scp><i>APOE3</i></scp> Christchurch homozygote glioprotection (2023) · cites this paper as [126]

    The Results (section 3.2; page unavailable) identify a DAOA variant associated with age of onset in people with PSEN1 E280A familial Alzheimer’s disease, and the Discussion (section 4; page unavailable) links EXOC2 to astrocyte research. The paper does not establish that these variants delay onset or protect against disease, and the passages found do not connect them to ubiquitin-proteasome function or p-tau degradation. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Neuroinflammation induces claudin-5 redistribution favoring hypervascularization and blood-brain barrier (BBB) leakage.

    “neuroinflammation induces its redistribution favoring hypervascularization and BBB leakage [126]”

    From Gliovascular alterations in sporadic and familial Alzheimer's disease: <scp><i>APOE3</i></scp> Christchurch homozygote glioprotection (2023) · cites this paper as [126]

    The Discussion (page unavailable) mentions astrocytes’ contribution to neuroinflammation in Alzheimer’s disease, but does not address claudin-5 redistribution, hypervascularization, or BBB leakage. Searches for those terms and for vascular permeability and tight junctions found no passage supporting the claimed mechanism. (LLM, conf=0.75)

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  • Targeted sequencing analyses have provided insight into genetic modifiers of the age at first symptom onset in EOAD families.

    “Targeted sequencing analyses have also provided insight into genetic modifiers of the age at first symptom onset in EOAD families [164, 165].”

    From Genetic architecture of Alzheimer's disease (2020) · cites this paper as [164]

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Research works printed but not linked: 2

  1. [44]Van Dongen A. M. Biology of the NMDA Receptor 2009 1st Boca Raton, Fla, USA CRC Press Frontiers in Neuroscience 21204416
  2. [56]Gardiner M. B. The importance of being cilia HHMI Bulletin 2005 18 2 32 37

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Authors
Vélez, J. I., Rivera, D., Mastronardi, C. A., Patel, H. R., Tobón, C., Villegas, A., Cai, Y., Easteal, S., Lopera, F., & Arcos-Burgos, M.
Affiliations
  • The Arcos-Burgos Group, Department of Genome Sciences, John Curtin School of Medical Research, The Australian National University, Canberra, ACT 2600, Australia
  • Universidad de Antioquia (CO)
  • Australian National University (AU)
Corresponding author
Lopera, Francisco
Venue
Neural Plasticity
Publisher
Wiley
Published
2016
Volume
2016
Pages
1-7
ISSN
  • 1687-5443 (ISSN-L)
  • 2090-5904
OpenAlex
W2213828421
Cited by
25
References
59
Citations by year
2025: 1 · 2024: 1 · 2023: 2 · 2022: 1 · 2021: 5 · 2020: 3 · 2019: 4 · 2018: 5 · 2017: 1 · 2016: 2
FWCI
3.22
Type
journal article
Language
en
Open access
Locations
  • Neural Plasticity (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Institutional Repository University of Antioquia (University of Antioquia) (publishedVersion, cc-by)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • ANU Open Research (Australian National University) (submittedVersion)
  • Greater South Information System
Funders
  • University of Antioquia (1115-408-20543)
  • Australian National University (1115-408-20543)
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 › Genetics › Genetic Associations and Epidemiology
Keywords
early-onset Alzheimer's disease, PSEN1 E280A mutation, DAOA, G72, missense mutations, genetic susceptibility, neuropsychiatric symptoms
MeSH terms
Alzheimer Disease, Carrier Proteins, Exons, Female, Humans, Male, Age of Onset, Genetic Predisposition to Disease, Mutation, Missense, Intracellular Signaling Peptides and Proteins, Presenilin-1

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