Mitochondrial Dysfunction in Aging and Cancer.
1Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council, 70126 Bari, Italy.
Journal of Clinical Medicine
|November 17, 2019
Summary
Aging and cancer share common mechanisms, particularly involving mitochondrial dysfunction. This review highlights how mitochondrial changes, signaling, and telomere communication link aging to cancer development and progression.
Area of Science:
- Gerontology
- Oncology
- Mitochondrial Biology
Background:
- Aging is a significant risk factor for cancer development.
- Shared biological mechanisms link aging and tumorigenesis.
- Mitochondrial dysfunction is increasingly implicated in both aging and cancer progression.
Purpose of the Study:
- To summarize current knowledge on mitochondria's role in aging and cancer.
- To focus on three key mitochondrial aspects connecting aging and cancer: mitochondrial genome alterations, mitochondria-to-nucleus signaling, and mitochondria-telomere communication.
Main Methods:
- Review of current scientific literature.
- Synthesis of evidence on mitochondrial dysfunction in aging and cancer.
- Focus on specific molecular and cellular pathways.
Main Results:
- Mitochondrial genome mutations and content changes are linked to aging and cancer.
- Mitochondria-to-nucleus signaling pathways are activated in both aging and tumorigenesis.
- A newly discovered communication pathway between mitochondria and telomeres connects aging and cancer.
Conclusions:
- Mitochondrial dysfunction is a central mechanism linking aging and cancer.
- Understanding these mitochondrial pathways offers potential therapeutic targets for age-related cancers.
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