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Aging01:26

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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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Updated: Apr 23, 2026

Measurement of Protein Turnover Rates in Senescent and Non-Dividing Cultured Cells with Metabolic Labeling and Mass Spectrometry
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Cellular senescence and the aging brain.

Shankar J Chinta1, Georgia Woods1, Anand Rane1

  • 1Buck Institute for Research on Aging, Novato, CA 94945, USA.

Experimental Gerontology
|October 5, 2014
PubMed
Summary
This summary is machine-generated.

Cellular senescence, a natural anti-cancer process, involves cells releasing inflammatory factors. Increased senescent cells in the aging brain correlate with neurodegeneration, suggesting new therapeutic targets.

Keywords:
AgingBrainCellular senescenceNeurodegenerationSenescence associated secretory phenotype

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Area of Science:

  • Cellular and Molecular Biology
  • Neuroscience
  • Gerontology

Background:

  • Cellular senescence is a key anti-cancer mechanism that stops cell division.
  • Senescent cells accumulate with age, releasing a senescence-associated secretory phenotype (SASP) with inflammatory factors.
  • The role of senescence in brain aging and neurodegenerative diseases is an emerging area of research.

Purpose of the Study:

  • To explore the involvement of cellular senescence and SASP in brain aging.
  • To investigate the correlation between senescent cells and neurodegeneration in the brain.
  • To identify senescent cells as potential therapeutic targets for age-related neuropathologies.

Main Methods:

  • Analysis of senescent cell markers in aging brain tissues.
  • Characterization of the senescence-associated secretory phenotype (SASP) in the brain.
  • Correlation studies between senescent cell burden and neurodegenerative markers.

Main Results:

  • Evidence suggests an increase in senescent cells of non-neuronal origin in the aging brain.
  • This increase in senescent cells correlates with the progression of neurodegeneration.
  • The SASP is present in senescent cells within the brain environment.

Conclusions:

  • Cellular senescence is implicated in the aging process of the brain.
  • Senescent cells and their SASP may contribute to age-related neuropathologies.
  • Targeting senescent cells presents a promising therapeutic strategy for brain aging and neurodegenerative diseases.