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Replicative Cell Senescence

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 Cells

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,...

Cancer Stem Cells and Tumor Maintenance

Cancer Stem Cells and Tumor Maintenance

Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...

Replicative Cell Senescence

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 Cells

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,...

Cancer Stem Cells and Tumor Maintenance

Cancer Stem Cells and Tumor Maintenance

Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...

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Updated: May 13, 2026

A Sensitive Method to Quantify Senescent Cancer Cells

A Sensitive Method to Quantify Senescent Cancer Cells

Published on: August 2, 2013

Cell senescence and cancer.

N F Mathon¹, A C Lloyd

¹Department of Biochemistry, University College London, UK.

Nature Reviews. Cancer

|March 21, 2002

Summary

Cell senescence, a state of cell-cycle arrest, can be triggered by intrinsic or extrinsic factors. This review explores senescence pathways and their role in cancer initiation and progression.

Area of Science:

Cellular biology
Oncology
Molecular mechanisms

Background:

Senescence was historically defined by intrinsic, replicative cell-cycle arrest.
Extrinsic factors can now be shown to prematurely induce a similar senescent phenotype.
Senescence is a complex biological state with implications beyond aging.

Purpose of the Study:

To review the diverse pathways of cellular senescence.
To elucidate the molecular mechanisms underlying senescence induction.
To examine the role of senescence in cancer development.

Main Methods:

Literature review of senescence pathways.
Analysis of molecular mechanisms regulating senescence.
Discussion of senescence's role in cancer initiation and progression.

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Simultaneous Imaging and Flow-Cytometry-based Detection of Multiple Fluorescent Senescence Markers in Therapy-Induced Senescent Cancer Cells

Simultaneous Imaging and Flow-Cytometry-based Detection of Multiple Fluorescent Senescence Markers in Therapy-Induced Senescent Cancer Cells

Published on: July 12, 2022

Evaluating the Effect of SASP Factors on the Proliferation of Cancer Cells Using a Comparative Analysis of Three Distinct Methodologies

Evaluating the Effect of SASP Factors on the Proliferation of Cancer Cells Using a Comparative Analysis of Three Distinct Methodologies

Published on: September 19, 2025

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Last Updated: May 13, 2026

A Sensitive Method to Quantify Senescent Cancer Cells

A Sensitive Method to Quantify Senescent Cancer Cells

Published on: August 2, 2013

Simultaneous Imaging and Flow-Cytometry-based Detection of Multiple Fluorescent Senescence Markers in Therapy-Induced Senescent Cancer Cells

Simultaneous Imaging and Flow-Cytometry-based Detection of Multiple Fluorescent Senescence Markers in Therapy-Induced Senescent Cancer Cells

Published on: July 12, 2022

Evaluating the Effect of SASP Factors on the Proliferation of Cancer Cells Using a Comparative Analysis of Three Distinct Methodologies

Evaluating the Effect of SASP Factors on the Proliferation of Cancer Cells Using a Comparative Analysis of Three Distinct Methodologies

Published on: September 19, 2025

Main Results:

Senescence can be induced by both intrinsic and extrinsic factors.
Distinct molecular pathways contribute to senescence.
Senescence plays a dual role in cancer, potentially inhibiting or promoting tumor growth.

Conclusions:

Cellular senescence is a multifaceted process regulated by various pathways.
Understanding senescence mechanisms is crucial for cancer research.
Senescence pathways offer potential therapeutic targets in oncology.