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Related Concept Videos

Aging01:26

Aging

Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
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Replicative Cell Senescence02:15

Replicative Cell Senescence

Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds the telomeric...
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Mitochondria01:37

Mitochondria

Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
Molecular Factors Affecting Cell Division01:27

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Related Experiment Video

Updated: May 10, 2026

A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae
10:39

A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae

Published on: September 17, 2020

A cytoprotective perspective on longevity regulation.

David E Shore1, Gary Ruvkun

  • 1Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA.

Trends in Cell Biology
|June 4, 2013
PubMed
Summary
This summary is machine-generated.

Lifespan extension mechanisms, like altered insulin/IGF-1 signaling, activate cytoprotective pathways. These pathways, including detoxification and proteostasis, are crucial for longevity across species and diverse triggers.

Keywords:
agingcytoprotectiondetoxificationhormesislongevitystress

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Last Updated: May 10, 2026

A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae
10:39

A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae

Published on: September 17, 2020

Studying Age-dependent Genomic Instability using the S. cerevisiae Chronological Lifespan Model
08:46

Studying Age-dependent Genomic Instability using the S. cerevisiae Chronological Lifespan Model

Published on: September 29, 2011

Surveying Low-Cost Methods to Measure Lifespan and Healthspan in Caenorhabditis elegans
10:08

Surveying Low-Cost Methods to Measure Lifespan and Healthspan in Caenorhabditis elegans

Published on: May 18, 2022

Area of Science:

  • Molecular Biology
  • Genetics
  • Aging Research

Background:

  • Lifespan extension is linked to disruptions in insulin/IGF-1 signaling, metabolism, translation, and feeding.
  • These pathways, despite functional differences, induce stress and damage buffering responses.

Purpose of the Study:

  • To explore effectors and upstream regulators of cytoprotective mechanisms in longevity programs.
  • To investigate the role of detoxification, innate immunity, proteostasis, and oxidative stress response in lifespan extension.

Main Methods:

  • Genetic analyses in Caenorhabditis elegans.
  • Examination of cytoprotective pathways activated by diverse longevity triggers.

Main Results:

  • Induction of cytoprotective pathways underpins longevity extension.
  • These effects are observed across functionally diverse triggers and species.
  • Cytoprotective pathways are coupled to cellular component surveillance.

Conclusions:

  • Cytoprotective mechanisms are conserved and essential for longevity.
  • These pathways have implications for responses to drugs, chemicals, and pathogens.
  • Longevity pathways are intertwined with cellular surveillance systems.