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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...

Cancer Stem Cells and Tumor Maintenance

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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.
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Updated: May 12, 2026

Studying Pancreatic Cancer Stem Cell Characteristics for Developing New Treatment Strategies

Studying Pancreatic Cancer Stem Cell Characteristics for Developing New Treatment Strategies

Published on: June 20, 2015

Cancer stem cells: the challenges ahead.

Jan Paul Medema¹

¹Laboratory for Experimental Oncology and Radiobiology, Center for Experimental Molecular Medicine, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands. j.p.medema@amc.nl

Nature Cell Biology

|April 4, 2013

Summary

This summary is machine-generated.

Cancer stem cells (CSCs) drive tumor growth and metastasis, but their existence is debated. New evidence in mouse tumors suggests stemness is a flexible trait, not fixed, in cancer cells.

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Area of Science:

Oncology
Cancer Biology
Stem Cell Research

Background:

Cancer stem cells (CSCs) are hypothesized drivers of tumor initiation and metastasis.
The precise role and existence of CSCs remain subjects of ongoing scientific discussion.
Recent findings in endogenous mouse tumors lend support to the CSC concept.

Purpose of the Study:

To discuss the challenges associated with identifying cancer stem cells.
To explore the dependence of CSCs on their supportive microenvironment (niche).
To examine the role of CSCs in the process of metastasis.
To propose a new model for stemness in tumor cells.

Main Methods:

Review and synthesis of current research on cancer stem cells.
Analysis of evidence from endogenous mouse tumor models.
Discussion of experimental challenges in CSC identification.

Main Results:

Identification of CSCs in naturally developing mouse tumors provides supporting evidence.
CSCs are reliant on a specific niche for survival and function.
CSCs play a significant role in the metastatic cascade.

Conclusions:

Stemness in tumor cells is a dynamic and adaptable characteristic.
Tumor cells can acquire or lose stem-like properties.
This flexible nature of stemness has implications for understanding cancer progression and developing therapies.