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Related Concept Videos

Cancer Stem Cells and Tumor Maintenance02:40

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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Radiosensitivity of Cancer Stem Cells in Lung Cancer Cell Lines
09:45

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Published on: August 21, 2019

How to estimate cancer stem cell frequency correctly.

Hai G Liu1, Xiao Hua Zhang

  • 1Department of Oncology, The First Affiliated Hospital of Wenzhou Medical College, Wenzhou, China.

Asian Pacific Journal of Cancer Prevention : APJCP
|October 16, 2009
PubMed
Summary

Cancer stem cell detection has improved, revealing they are more abundant than previously thought. Accurate frequency estimation requires considering cancer stem cell subsets with varying tumorigenic capacities.

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Studying Pancreatic Cancer Stem Cell Characteristics for Developing New Treatment Strategies
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Area of Science:

  • Oncology
  • Stem Cell Biology
  • Cancer Research

Background:

  • Cancer stem cells (CSCs) are increasingly recognized for their role in cancer development.
  • Traditional xenotransplantation assays in SCID mice suggested CSCs are rare.
  • Recent findings challenge this notion, indicating a higher abundance of CSCs.

Purpose of the Study:

  • To re-evaluate the abundance of cancer stem cells.
  • To highlight the limitations of standard detection methods.
  • To emphasize the importance of considering CSC heterogeneity.

Main Methods:

  • Utilizing syngeneic transplantation of mouse tumors.
  • Modifying xenotransplantation assays for improved accuracy.
  • Analyzing CSC subsets with different tumorigenic potentials.

Main Results:

  • Modified assays and syngeneic transplantation reveal a greater abundance of CSCs.
  • CSCs are more prevalent than suggested by earlier in vivo studies.
  • Cancer stem cell frequency estimation is influenced by subset heterogeneity.

Conclusions:

  • The abundance of cancer stem cells may be underestimated by conventional methods.
  • Accurate CSC frequency determination necessitates accounting for diverse CSC subsets.
  • Further research into CSC heterogeneity is crucial for understanding cancer biology and developing therapies.