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Updated: Jul 15, 2025
08:46
Studying Age-dependent Genomic Instability using the S. cerevisiae Chronological Lifespan Model
Published on: September 29, 2011
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Genomic Instability and Epigenetic Changes during Aging.
Lucía López-Gil1,2, Amparo Pascual-Ahuir1, Markus Proft2
1Department of Biotechnology, Instituto de Biología Molecular y Celular de Plantas, Universitat Politècnica de València, Ingeniero Fausto Elio s/n, 46022 Valencia, Spain.
International Journal of Molecular Sciences
|September 28, 2023
Summary
Genomic instability, including DNA damage and epigenetic changes, drives aging. Understanding these mechanisms is key to future aging research and interventions.
Area of Science:
- Gerontology
- Molecular Biology
- Genetics
Background:
- Aging is characterized by physiological decline and increased mortality.
- Genomic instability is increasingly recognized as a key hallmark of aging.
- Cellular and molecular changes accumulate with advancing age.
Purpose of the Study:
- To review the central role of genomic instability in the aging process.
- To explore genetic and epigenetic alterations contributing to aging-related genomic instability.
- To discuss the impact of chromatin organization on aging.
Main Methods:
- Literature review of scientific articles on aging and genomic instability.
- Analysis of genetic alterations (telomere shortening, DNA damage, repair capacity).
- Examination of epigenetic modifications (histone, DNA methylation, non-coding RNAs) and chromatin structure.
Main Results:
- Telomere shortening, DNA damage accumulation, and reduced DNA repair capacity are key genetic factors in aging.
- Epigenetic changes, including histone modifications, altered DNA methylation, and non-coding RNAs, are prevalent in aging.
- Chromatin organization changes, such as heterochromatin loss and remodeling, contribute to genomic instability during aging.
Conclusions:
- Genomic instability is a fundamental driver of the aging process.
- Genetic, epigenetic, and chromatin alterations collectively contribute to aging.
- Further research is crucial to elucidate these complex biological mechanisms and their implications.
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