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Evaluation of the Impact of Protein Aggregation on Cellular Oxidative Stress in Yeast
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Linking cellular proteostasis to yeast longevity.

Belém Sampaio-Marques1,2, Paula Ludovico1,2

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Cellular proteostasis, essential for protein health, declines with age. Enhancing this network in yeast may offer insights into aging interventions and extending lifespan.

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Area of Science:

  • Cellular Biology
  • Molecular Biology
  • Gerontology

Background:

  • Proteostasis is crucial for maintaining cellular health by regulating protein synthesis and degradation.
  • Dysfunctional proteostasis can lead to protein aggregation, cellular damage, and death.
  • The cellular proteostasis network, including molecular chaperones and degradation pathways, declines with age.

Purpose of the Study:

  • To review current knowledge on Saccharomyces cerevisiae proteostasis pathways.
  • To highlight the multidimensional nature of the proteostasis network.
  • To discuss age-dependent changes in proteostasis.

Main Methods:

  • Literature review of studies on Saccharomyces cerevisiae proteostasis.
  • Analysis of molecular chaperones and protein degradation pathways.
  • Examination of age-related decline in proteostasis.

Main Results:

  • The proteostasis network is complex and interconnected.
  • Ageing is associated with a decline in proteostasis efficiency.
  • Enhancing proteostasis pathways can extend lifespan in model organisms.

Conclusions:

  • Understanding proteostasis mechanisms is vital for addressing age-related decline.
  • Targeting the proteostasis network offers potential therapeutic strategies for ageing.
  • Saccharomyces cerevisiae serves as a valuable model for studying proteostasis and ageing.