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Updated: Jul 3, 2026
12:24
Quantifying Yeast Chronological Life Span by Outgrowth of Aged Cells
Published on: May 6, 2009
Replicative aging in yeast: the means to the end
K A Steinkraus1, M Kaeberlein, B K Kennedy
1Department of Pathology, University of Washington, Seattle, Washington 98195, USA. kaeber@u.washington.edu
Annual Review of Cell and Developmental Biology
|July 12, 2008
Summary
Yeast aging research reveals conserved longevity pathways. Studies in this single-celled eukaryote are accelerating discoveries about the genetic and molecular basis of aging, offering insights into multicellular life spans.
Area of Science:
- Gerontology and molecular biology
- Cellular aging mechanisms
- Comparative biology
Background:
- Aging research is advancing rapidly, with single-celled eukaryotes like yeast playing a pivotal role.
- Understanding the genetic and molecular underpinnings of aging is crucial for addressing age-related decline.
- Yeast serves as a powerful model organism due to its genetic tractability and conserved biological pathways.
Purpose of the Study:
- To review the historical significance of yeast in aging research.
- To highlight recent discoveries in yeast aging that inform broader aging hypotheses.
- To explore the conservation of longevity pathways between yeast and multicellular organisms.
Main Methods:
- Genetic analysis to identify lifespan-modulating genes in yeast.
- Molecular studies to elucidate the biochemical processes of aging.
- Comparative genomics and functional assays to assess pathway conservation.
Main Results:
- Identification of key genetic factors influencing yeast replicative lifespan.
- Discovery of molecular events associated with the aging process in yeast.
- Evidence supporting the conservation of fundamental aging pathways across diverse eukaryotes.
Conclusions:
- Yeast continues to be an invaluable model for dissecting the complexities of aging.
- Recent findings in yeast aging provide novel directions and link to mammalian aging hypotheses.
- The fundamental mechanisms of aging may be highly conserved, offering potential therapeutic targets.
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