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Updated: Aug 25, 2026

Techniques to Induce and Quantify Cellular Senescence
06:51

Techniques to Induce and Quantify Cellular Senescence

Published on: May 1, 2017

Activation of the DNA damage response by telomere attrition: a passage to cellular senescence

Philip M Reaper1, Fabrizio d'Adda di Fagagna, Stephen P Jackson

  • 1The Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, UK.

Cell Cycle (Georgetown, Tex.)
|March 23, 2004
PubMed

Insights

Critical telomere shortening triggers cell senescence by mimicking DNA damage. DNA damage signaling pathways are crucial for establishing and maintaining this telomere-initiated senescence, leading to cell cycle arrest.

Area of Science:

  • Cellular biology
  • Molecular genetics

Background:

  • Critical telomere shortening causes senescence in human cells.
  • Dysfunctional telomeres share similarities with DNA damage.
  • DNA damage signaling is implicated in telomere-initiated senescence.

Purpose of the Study:

  • Review recent findings on telomere-initiated senescence.
  • Highlight future research directions.
  • Discuss the role of DNA damage response factors in senescence.

Main Methods:

  • Literature review of recent observations.
  • Analysis of DNA damage response pathways.
  • Model development for molecular events in pre-senescent cells.

Main Results:

  • Dysfunctional telomeres activate DNA damage response pathways.
  • Specific DNA damage response factors are key to senescence.
  • A molecular model for senescence establishment is proposed.

Conclusions:

  • Telomere dysfunction and DNA damage signaling are intertwined in cellular senescence.
  • Understanding these pathways is crucial for cell cycle regulation research.
  • Further investigation into DNA damage response factors is warranted.

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