Cited by 32Alzheimer's disease research and treatmentsMitochondrial Function and PathologyDementia and Cognitive Impairment Research

Mitochondrial ubiquitin ligase alleviates Alzheimer’s disease pathology via blocking the toxic amyloid-β oligomer generation

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Takeda, Keisuke, Uda, Aoi, Mitsubori, Mikihiro, Nagashima, Shun, Iwasaki, Hiroko, Ito, Naoki, Shiiba, Isshin, Ishido, Satoshi +3 more·2021·Communications Biology

Abstract

Mitochondrial pathophysiology is implicated in the development of Alzheimer's disease (AD). An integrative database of gene dysregulation suggests that the mitochondrial ubiquitin ligase MITOL/MARCH5, a fine-tuner of mitochondrial dynamics and functions, is downregulated in patients with AD. Here, we report that the perturbation of mitochondrial dynamics by MITOL deletion triggers mitochondrial impairments and exacerbates cognitive decline in a mouse model with AD-related Aβ pathology. Notably, MITOL deletion in the brain enhanced the seeding effect of Aβ fibrils, but not the spontaneous formation of Aβ fibrils and plaques, leading to excessive secondary generation of toxic and dispersible Aβ oligomers. Consistent with this, MITOL-deficient mice with Aβ etiology exhibited worsening cognitive decline depending on Aβ oligomers rather than Aβ plaques themselves. Our findings suggest that alteration in mitochondrial morphology might be a key factor in AD due to directing the production of Aβ form, oligomers or plaques, responsible for disease development.

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Authors
Takeda, K., Uda, A., Mitsubori, M., Nagashima, S., Iwasaki, H., Ito, N., Shiiba, I., Ishido, S., Matsuoka, M., Inatome, R., & Yanagi, S.
Affiliations
  • University of Padua (IT)
  • Tokyo University of Pharmacy and Life Sciences (JP)
  • Hyogo Medical University (JP)
  • Tokyo Medical University (JP)
Corresponding author
Yanagi, Shigeru
Venue
Communications Biology
Published
2021-02-12
Volume
4
Issue
1
Pages
192-192
ISSN
2399-3642 (ISSN-L)
OpenAlex
W3127288553
Cited by
32
References
61
Citations by year
2026: 7 · 2025: 3 · 2024: 4 · 2023: 9 · 2022: 4 · 2021: 5
FWCI
3.46
Type
journal article
Language
en
Open access
Locations
  • Communications Biology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • MEXT | Japan Society for the Promotion of Science (18H04869, 20H04911)
  • Ministry of Education, Culture, Sports, Science and Technology (S1411014)
  • Japan Agency for Medical Research and Development (17gm5010002, 18gm5010002, 19gm5010002 and 20gm5010002)
  • Uehara Memorial Foundation (N/A)
  • Naito Foundation (N/A)
  • Takeda Medical Research Foundation (N/A)
  • Sumitomo Foundation (N/A)
  • Cosmetology Research Foundation (N/A)
  • Ono Medical Research Foundation (N/A)
  • Tokyo Biochemical Research Foundation (N/A)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
Alzheimer's disease, MARCH5, mitochondrial dynamics, amyloid-beta oligomers, amyloid-beta fibrils, amyloid plaques, cognitive decline, mitochondrial morphology, gene expression dysregulation
MeSH terms
Alzheimer Disease, Animals, Behavior, Animal, Blood Proteins, Brain, Cognition, Disease Models, Animal, Humans, Membrane Proteins, Mitochondria, Amyloid beta-Peptides, Mice, Knockout, Mitochondrial Proteins, Poly(A)-Binding Proteins, Ubiquitin-Protein Ligases, Cell Line, Tumor, Mice, Presenilin-1, Plaque, Amyloid, Protein Aggregation, Pathological, Protein Aggregates

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