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Updated: Jun 25, 2026

Isolation of Cancer Stem Cells From Human Prostate Cancer Samples
Published on: March 14, 2014
Prostate tumor-initiating cells: a new target for telomerase inhibition therapy?
1University of Texas Southwestern Medical Center, Department of Cell Biology, Dallas, TX 75390-9039, USA. calin.marian@southwestern.edu
Abstract:
Conventional therapies for prostate cancer, especially in its androgen-independent form, may result in the survival of small populations of resistant cells with tumor-initiating potential. These "cancer stem cells" are believed to be responsible for cancer relapse, and therapeutic strategies targeting these cells are of great importance. Telomerase is a ribonucleoprotein enzyme responsible for telomere elongation and is activated in the majority of malignancies, including prostate cancer, but is absent in most normal cells. Putative tumor-initiating cells have significant levels of telomerase, indicating that they are an excellent target for telomerase inhibition therapy. In this review, we present some evidence for the hypothesis that conventional therapies (standard chemotherapy and/or radiation therapy) in combination with telomerase inhibitors may result in effective and more durable responses.
Insights
Targeting cancer stem cells in prostate cancer is crucial. Combining conventional therapies with telomerase inhibitors may offer more durable responses by eliminating resistant cells.
Area of Science:
- Oncology
- Molecular Biology
Background:
- Conventional prostate cancer therapies can leave resistant cancer stem cells.
- These cells are linked to cancer relapse and tumor recurrence.
- Telomerase is active in most cancers, including prostate cancer, and in cancer stem cells.
Purpose of the Study:
- To review evidence supporting telomerase as a target in prostate cancer.
- To explore the potential of combining telomerase inhibitors with conventional therapies.
Main Methods:
- Literature review of studies on prostate cancer, cancer stem cells, and telomerase.
- Analysis of the role of telomerase in tumor-initiating cells.
- Evaluation of combination therapy strategies.
Main Results:
- Cancer stem cells possess significant telomerase activity.
- Telomerase inhibition presents a promising therapeutic strategy.
- Combination therapy may enhance treatment efficacy and durability.
Conclusions:
- Telomerase-positive cancer stem cells are a viable target for prostate cancer treatment.
- Combining conventional treatments with telomerase inhibitors could lead to improved patient outcomes.
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