Related Experiment Video

Updated: May 21, 2026

A Sensitive Method to Quantify Senescent Cancer Cells
09:18

A Sensitive Method to Quantify Senescent Cancer Cells

Published on: August 2, 2013

Senescence; an endogenous anticancer mechanism

Jose Vargas1, Bruno Cesar Feltes, Joice de Faria Poloni

  • 1Department of Biophysics and Center of Biotechnology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.

Frontiers in Bioscience (Landmark Edition)
|June 2, 2012
PubMed

Insights

Cellular senescence (CS) is a key aging process that halts pre-malignant cells. Understanding CS mechanisms offers potential for novel anticancer treatments by modulating this cell cycle arrest.

Area of Science:

  • Cellular Biology
  • Oncology
  • Aging Research

Background:

  • Cellular senescence (CS) is an irreversible cell cycle arrest crucial for aging and tumor suppression.
  • CS encompasses replicative senescence and premature senescence, including oncogene-induced senescence (OIS).
  • OIS is vital in preventing cancer development and can be influenced by tumor suppressor genes like PTEN.

Purpose of the Study:

  • To review the literature on the role of senescence in cancer prevention.
  • To discuss the therapeutic potential of modulating senescence for anticancer treatments.

Main Methods:

  • Literature review of senescence mechanisms.
  • Analysis of signaling cascades and transduction pathways involved in CS.
  • Exploration of molecular tools for senescence modulation.

Main Results:

  • Senescence acts as a barrier against cancer development.
  • Multiple factors including oncogenes, tumor suppressor loss, microRNAs, epigenetics, and stress can induce senescence.
  • Telomerase (hTert) can prevent replicative senescence.

Conclusions:

  • Senescence plays a critical role in preventing cancer.
  • Modulating senescence pathways presents promising avenues for developing novel anticancer therapies.

More Related Videos

A Quantitative Measurement of Reactive Oxygen Species and Senescence-associated Secretory Phenotype in Normal Human Fibroblasts During Oncogene-induced Senescence13:59

A Quantitative Measurement of Reactive Oxygen Species and Senescence-associated Secretory Phenotype in Normal Human Fibroblasts During Oncogene-induced Senescence

Published on: August 12, 2018

Techniques to Induce and Quantify Cellular Senescence06:51

Techniques to Induce and Quantify Cellular Senescence

Published on: May 1, 2017

Related Concept Videos

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...
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...
Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Loss of Tumor Suppressor Gene Functions01:12

Loss of Tumor Suppressor Gene Functions

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
The Retinoblastoma Gene01:20

The Retinoblastoma Gene

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...