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Updated: Jul 18, 2026

Utilizing Murine Inducible Telomerase Alleles in the Studies of Tissue Degeneration/Regeneration and Cancer
Published on: April 13, 2015
Validation of telomerase and survivin as anticancer therapeutic targets using ribozymes and small-interfering RNAs
Nadia Zaffaroni1, Marzia Pennati, Marco Folini
1Department of Experimental Oncology and Laboratories, National Cancer Institute, Milan, Italy.
Abstract:
In recent years expanding knowledge about basic biology and a detailed understanding of the molecular pathways involved in tumor cell growth and progression have allowed the identification of numerous genes as potential therapeutic targets. Studies in which the expression of these genes was manipulated by antisense strategies have provided clues as to how we can intervene to specifically kill tumor cells or sensitize them to conventional chemical and physical antitumor therapies. Such tumor specificity can only be obtained by exploiting a basic difference between normal and malignant cells. In this context, targeting cytoprotective factors such as telomerase and survivin is particularly attractive because of their almost selective expression in tumor cells and their proven association with disease progression. This chapter summarizes the results obtained with ribozymes and small-interfering RNAs in the functional validation of these two targets in cell cultures and animal tumor models.
Insights
Targeting cancer-specific genes like telomerase and survivin using ribozymes and small-interfering RNAs shows promise for developing new antitumor therapies. These approaches aim to specifically kill tumor cells or enhance sensitivity to existing treatments.
Area of Science:
- Molecular Biology
- Cancer Therapeutics
- Gene Expression Regulation
Background:
- Advances in understanding tumor biology have identified numerous genes crucial for cancer growth and progression.
- Targeting molecular pathways offers potential for developing specific anticancer strategies.
- Cytoprotective factors like telomerase and survivin are highly expressed in tumors, making them attractive therapeutic targets.
Purpose of the Study:
- To explore the potential of targeting telomerase and survivin for cancer treatment.
- To validate these targets using antisense strategies, specifically ribozymes and small-interfering RNAs (siRNAs).
- To assess the efficacy of these approaches in preclinical models.
Main Methods:
- Utilized ribozymes and small-interfering RNAs (siRNAs) to manipulate gene expression.
- Conducted experiments in cell cultures to assess target validation.
- Evaluated therapeutic efficacy in animal tumor models.
Main Results:
- Demonstrated the functional validation of telomerase and survivin as therapeutic targets.
- Showcased the potential of ribozymes and siRNAs in targeting these cancer-specific genes.
- Preclinical studies indicated promising results in selectively affecting tumor cells.
Conclusions:
- Targeting telomerase and survivin with ribozymes and siRNAs is a viable strategy for cancer therapy.
- These antisense approaches can specifically target tumor cells or sensitize them to conventional therapies.
- Further development holds promise for novel, tumor-specific treatment modalities.
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