Cited by 44Mitochondrial Function and PathologyDown syndrome and intellectual disability researchAlzheimer's disease research and treatments

Mitochondrial Dysfunction in Down Syndrome: From Pathology to Therapy

Tan, Kai-Leng, Lee, Han-Chung, Cheah, Pike-See, Ling, King-Hwa·2023·Neuroscience

Abstract

Mitochondrial dysfunctions have been described in Down syndrome (DS) caused by either partial or full trisomy of chromosome 21 (HSA21). Mitochondria play a crucial role in various vital functions in eukaryotic cells, especially in energy production, calcium homeostasis and programmed cell death. The function of mitochondria is primarily regulated by genes encoded in the mitochondrion and nucleus. Many genes on HSA21 are involved in oxidative phosphorylation (OXPHOS) and regulation of mitochondrial functions. This review highlights the HSA21 dosage-sensitive nuclear-encoded mitochondrial genes associated with overexpression-related phenotypes seen in DS. This includes impaired mitochondrial dynamics, structural defects and dysregulated bioenergetic profiles such as OXPHOS deficiency and reduced ATP production. Various therapeutic approaches for modulating energy deficits in DS, effects and molecular mechanism of gene therapy and drugs that exert protective effects through modulation of mitochondrial function and attenuation of oxidative stress in DS cells were discussed. It is prudent that improving DS pathophysiological conditions or quality of life may be feasible by targeting something as simple as cellular mitochondrial biogenesis and function.

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Crossref · 10.1016/j.neuroscience.2022.12.003

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Authors
Tan, K.-L., Lee, H.-C., Cheah, P.-S., & Ling, K.-H.
Affiliations
Universiti Putra Malaysia (MY)
Venue
Neuroscience
Publisher
Elsevier BV
Published
2023-02
Volume
511
Pages
1-12
ISSN
0306-4522 (ISSN-L)
OpenAlex
W4311173065
Cited by
44
References
108
Citations by year
2026: 12 · 2025: 18 · 2024: 9 · 2023: 5
FWCI
0.83
Type
journal article
Language
en
Open access
closed
Locations
  • Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Universiti Putra Malaysia Institutional Repository (Universiti Putra Malaysia) (acceptedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Down syndrome and intellectual disability research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
Down syndrome, mitochondrial dysfunction, nuclear-encoded mitochondrial genes, oxidative phosphorylation deficiency, mitochondrial dynamics, mitochondrial biogenesis, bioenergetics, ATP production, oxidative stress, gene therapy, therapeutic drugs, energy metabolism
MeSH terms
Down Syndrome, Energy Metabolism, Humans, Mitochondria, Quality of Life, Mitochondrial Diseases

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