Related Experiment Video
Updated: May 13, 2026

Radiosensitivity of Cancer Stem Cells in Lung Cancer Cell Lines
Published on: August 21, 2019
Cancer stem cells and response to therapy
Sanaz Tabarestani1, Soudeh Ghafouri-Fard
1Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Cancer stem cells (CSCs) drive tumor growth and heterogeneity. Current therapies struggle to eliminate CSCs, potentially due to their self-renewal capabilities. Targeting key embryonic pathways may offer new therapeutic strategies.
Area of Science:
- Oncology
- Cell Biology
- Developmental Biology
Background:
- The cancer stem cell (CSC) model posits a hierarchical organization within tumors, explaining functional heterogeneity.
- CSCs, similar to normal stem cells, possess self-renewal capacity and the ability to indefinitely propagate tumors.
- Conventional cancer therapies often fail against advanced tumors, possibly because they do not effectively target CSCs.
Purpose of the Study:
- To investigate the role of embryonic pathways in maintaining cancer stem cell populations.
- To explore the potential of targeting these pathways for novel cancer therapies.
Main Methods:
- Review of existing literature on cancer stem cells and embryonic signaling pathways.
- Analysis of the involvement of Wnt, Hedgehog, and Notch pathways in CSC self-renewal and cell fate.
Main Results:
- Embryonic pathways, including Wnt, Hedgehog, and Notch, are crucial for CSC self-renewal and maintenance.
- These conserved pathways regulate stem cell behavior and are implicated in CSC persistence within tumors.
Conclusions:
- CSCs are key drivers of tumor growth and resistance to therapy.
- Targeting conserved embryonic signaling pathways represents a promising strategy for eliminating CSCs and improving cancer treatment outcomes.
Related Concept Videos
Cancer Stem Cells and Tumor Maintenance
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
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
Treatment Resistant Cancers
Adaptive Mechanisms in Cancer Cells
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 Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Distinctive Features of Adult Stem Cells vs Cancer Stem Cells
Adult stem cells
Adult stem cells are tissue-specific; hence, they divide to develop the tissue from which they originate. One type of adult stem cell is the epithelial stem cell, which gives rise to the keratinocytes in the multiple layers of epithelial cells in the epidermis of the skin. Adult bone marrow has three distinct types of stem cells:...

