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Studying Pancreatic Cancer Stem Cell Characteristics for Developing New Treatment Strategies
Published on: June 20, 2015
Stem cell fate in cancer growth, progression and therapy resistance
Nikki K Lytle1,2,3, Alison G Barber1,2,3, Tannishtha Reya4,5,6
1Departments of Pharmacology and Medicine, San Diego School of Medicine, University of California, La Jolla, CA, USA.
Abstract:
Although we have come a long way in our understanding of the signals that drive cancer growth, and how these signals can be targeted, effective control of this disease remains a key scientific and medical challenge. The therapy resistance and relapse that are commonly seen are driven in large part by the inherent heterogeneity within cancers that allows drugs to effectively eliminate some, but not all, malignant cells. Here, we focus on the fundamental drivers of this heterogeneity by examining emerging evidence that shows that these traits are often controlled by the disruption of normal cell fate and aberrant adoption of stem cell signals. We discuss how undifferentiated cells are preferentially primed for transformation and often serve as the cell of origin for cancers. We also consider evidence showing that activation of stem cell programmes in cancers can lead to progression, therapy resistance and metastatic growth and that targeting these attributes may enable better control over a difficult disease.
Insights
Cancer cell heterogeneity drives therapy resistance and relapse. Targeting aberrant stem cell signals in cancer may offer new strategies for disease control.
Area of Science:
- Oncology
- Cancer Biology
- Stem Cell Biology
Background:
- Cancer remains a significant medical challenge despite advances in targeted therapies.
- Therapy resistance and relapse are common, largely due to cancer cell heterogeneity.
- This heterogeneity allows some cancer cells to survive treatment, leading to disease recurrence.
Purpose of the Study:
- To examine the fundamental drivers of cancer heterogeneity.
- To explore the role of disrupted cell fate and stem cell signals in cancer development and progression.
- To discuss the potential of targeting these stem cell attributes for improved cancer control.
Main Methods:
- Review of emerging evidence on cancer cell heterogeneity.
- Analysis of the link between cell fate, stem cell signals, and cancer.
- Discussion of therapeutic strategies targeting stem cell pathways.
Main Results:
- Cancer heterogeneity is a key factor in treatment failure.
- Disrupted normal cell fate and adopted stem cell signals contribute significantly to this heterogeneity.
- Undifferentiated cells are prone to transformation and act as cancer origins.
- Activated stem cell programs in cancers promote progression, resistance, and metastasis.
Conclusions:
- Aberrant stem cell signaling is a fundamental driver of cancer heterogeneity.
- Targeting stem cell programs presents a promising avenue for overcoming therapy resistance and improving cancer treatment outcomes.
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