Cited by 52Mitochondrial Function and PathologyAutophagy in Disease and TherapyGenetics, Aging, and Longevity in Model Organisms

The systems biology of mitochondrial fission and fusion and implications for disease and aging

Chauhan, Anuradha, Vera, Julio, Wolkenhauer, Olaf·2014·Biogerontology

Abstract

Mitochondria organize themselves as dynamic populations within a cell, by undergoing continuous cycles of fission and fusion. The spatio-temporal distribution and abundance of mitochondria determines the cell’s energy budget and is thus intimately linked to the cell’s response to environmental stimuli during aging. The dynamic balance of mitochondrial fission and fusion can be studied in terms of antagonistic subpopulations that regulate the mitochondrial responses in space and time. The dynamic nature of these processes motivates mathematical modelling and the simulation of such complex process. In several neurodegenerative and metabolic diseases the dynamic balance of fission and fusion is disturbed. However, how this dynamics plays a role in the progression of diseases is largely unclear. Fission and fusion help mitochondria to regulate cellular energy (ATP) levels, and minimize accumulation of harmful oxidized material called reactive oxygen species which accelerate mutations in mitochondrial DNA (mtDNA) during aging. We discuss how systems biology approaches can be used to investigate the mechanisms controlling the fission–fusion dynamics under two categories: dissecting the design of its molecular regulatory motifs, and understanding complex mitochondrial responses through their population level interactions. This will help us to understand how different regulatory mechanisms regulate the ATP and mutation (mtDNA) landscape of mitochondria to a variety of environmental stimuli in order to maintain their function during aging.

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Crossref · 10.1007/s10522-013-9474-z

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Authors
Chauhan, A., Vera, J., & Wolkenhauer, O.
Affiliations
University of Rostock (DE)
Corresponding author
Chauhan, Anuradha
Venue
Biogerontology
Published
2013-10-12
Volume
15
Issue
1
Pages
1-12
ISSN
  • 1389-5729 (ISSN-L)
  • 1573-6768
OpenAlex
W2019617490
Cited by
52
References
98
Citations by year
2025: 2 · 2024: 3 · 2023: 2 · 2022: 9 · 2021: 6 · 2020: 6 · 2019: 9 · 2018: 4 · 2017: 3 · 2016: 2 · 2015: 3 · 2014: 3
FWCI
0.25
Type
journal article
Language
en
Open access
closed
Locations
  • Biogerontology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
mitochondrial fission, mitochondrial fusion, mitochondrial dynamics, aging, neurodegenerative diseases, metabolic disorders, ATP production, reactive oxygen species, mitochondrial DNA mutations, systems biology
MeSH terms
Adaptation, Physiological, Aging, Animals, Disease, DNA, Mitochondrial, Energy Metabolism, Humans, Systems Biology, Cellular Microenvironment, Mitochondrial Dynamics

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