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Updated: Jan 3, 2026

Semi-quantitative Detection of RNA-dependent RNA Polymerase Activity of Human Telomerase Reverse Transcriptase Protein
Published on: June 12, 2018
Telomerase-specific attenuated viruses, a definitive strategy or just one more in circulating tumor cells detection
Elena Soria1, Miren Vallejo1, Luis Saenz2
1Oncohematology Research Group, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Irunlarrea 3, 31008, Pamplona, Spain.
Abstract:
The quantification and isolation of Circulating Tumor Cells (CTC) is being the battleground during last years. There are many groups that are investing economic resources in trying to solve this jigsaw. Technological platforms based on different proofs of concept have been developed achieving in some cases excellent results despite not having been able to detect the total compute of the patient's CTC population. The handicap of this matter has been the lack of universal markers. Several years have gone so that in detection of CTC is take into account a basic characteristic that possesses the most of tumor cells, the loss of inactivation of the enzyme telomerase. Gene therapy has been combined with telomerase activity concept for develop a molecular tool that makes it possible to identify CTC: Telomerase-specific replication-selective viruses. This review includes for the first time all the scientific studies that have been published to date with this advanced technology. Furthermore, it describes the role in the diagnosis and prognosis that Telomerase-specific attenuated viruses have been playing in cancer patients study during this last decade.
Insights
Detecting circulating tumor cells (CTCs) is challenging due to a lack of universal markers. Telomerase-specific replication-selective viruses offer a novel approach to identify and quantify these cancer cells for improved diagnosis and prognosis.
Area of Science:
- Oncology
- Molecular Biology
- Biotechnology
Background:
- Circulating Tumor Cells (CTCs) detection and isolation are critical in cancer research.
- Current methods face limitations in detecting the complete CTC population due to a lack of universal markers.
- Telomerase activity, a characteristic of most tumor cells, presents a potential target for CTC identification.
Purpose of the Study:
- To review the scientific literature on Telomerase-specific replication-selective viruses for CTC detection.
- To explore the application of this technology in cancer diagnosis and prognosis.
Main Methods:
- Review of published scientific studies utilizing Telomerase-specific replication-selective viruses.
- Analysis of the role of these viruses in identifying CTCs based on telomerase activity.
Main Results:
- Telomerase-specific replication-selective viruses have emerged as a promising tool for CTC identification.
- This technology leverages the loss of telomerase inactivation in tumor cells.
- The review consolidates existing research on this advanced molecular tool.
Conclusions:
- Telomerase-specific replication-selective viruses represent an advanced technology for CTC detection.
- These viruses show potential in improving cancer diagnosis and patient prognosis.
- Further research and application of this technology are warranted in clinical settings.
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