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Updated: Sep 15, 2025
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A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae
Published on: September 17, 2020
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Along the Trajectory to Understanding Cellular Aging: More Lessons from Yeast
Kiyan Shabestary1, Reinhard Dechant1, Daniel E Gottschling1
1Calico Life Sciences LLC, South San Francisco, California, USA;
Annual Review of Cell and Developmental Biology
|July 16, 2025
Summary
Cellular aging in yeast reveals diverse aging trajectories and homeostatic loss, offering insights into aging mechanisms in multicellular organisms. This study highlights key principles from yeast aging research applicable to metazoan aging processes.
Area of Science:
- Gerontology
- Cell Biology
- Yeast Genetics
Background:
- Aging is a universal biological process impacting all organisms, marked by physiological imbalance and increased disease risk.
- Understanding cellular aging mechanisms is crucial for addressing age-related decline and diseases in multicellular organisms (metazoa).
Purpose of the Study:
- To review cellular aging principles derived from the model organism *Saccharomyces cerevisiae* (yeast).
- To elucidate how yeast aging research informs our understanding of aging in metazoa.
Main Methods:
- Utilizing recent technical advancements for comprehensive observation of yeast replicative lifespan.
- Analyzing heterogeneous aging processes and temporal/functional dependencies between cellular subprocesses in yeast.
Main Results:
- Yeast aging is a heterogeneous process, not a uniform decline.
- Cellular aging progresses through distinct trajectories, reflecting stages of homeostatic loss.
- Identified unique temporal and functional interdependencies between cellular subprocesses during aging.
Conclusions:
- *Saccharomyces cerevisiae* serves as a valuable model for dissecting fundamental cellular aging principles.
- Insights from yeast aging provide a framework for understanding aging trajectories and homeostatic loss in metazoa.
- This research bridges yeast and metazoan aging, advancing the study of age-related diseases.
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