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Updated: Jul 10, 2026

Techniques to Induce and Quantify Cellular Senescence
06:51

Techniques to Induce and Quantify Cellular Senescence

Published on: May 1, 2017

Molecular mechanisms of cellular senescence and immortalization of human cells

Tohru Kiyono1

  • 1National Cancer Center Research Institute, Virology Division, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan. tkiyono@gan2.res.ncc.go.jp

Expert Opinion on Therapeutic Targets
|November 21, 2007
PubMed

Insights

Cellular senescence, a process in cells, occurs both in labs and in living organisms, impacting tumor growth. Understanding its causes and mediators may lead to new anti-aging and cancer prevention drugs.

Area of Science:

  • Gerontology
  • Molecular Biology
  • Oncology

Background:

  • Cellular senescence, initially observed in vitro, is now recognized to occur in vivo.
  • This process has significant implications for tumor development and aging.

Purpose of the Study:

  • To review the established causes and mediators of cellular senescence.
  • To explore the potential for common therapeutic strategies for aging and cancer.

Main Methods:

  • Literature review of cellular senescence research.
  • Analysis of key molecular pathways involved in senescence induction.

Main Results:

  • Telomere shortening is a primary inducer of senescence.
  • The retinoblastoma susceptibility gene product is a convergent downstream target.
  • Key mediators include p53, p38MAPK, p16INK4a (p16), and p21CIP1 (p21).

Conclusions:

  • Cellular senescence is a conserved biological process with relevance in vivo.
  • Therapeutic strategies targeting senescence may offer dual benefits for cancer prevention and anti-aging.

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