Is telomerase a viable target in cancer?

Area of Science:

• Oncology
• Molecular Biology
• Biochemistry

Background:

• Telomerase is a key enzyme in maintaining chromosome ends.
• It is highly expressed in over 85% of cancer cells but not in most normal cells.
• Telomerase activity grants cancer cells unlimited replicative potential, a hallmark of cancer.

Purpose of the Study:

• To review the role of telomeres and telomerase in cancer.
• To explore the development of targeted cancer therapies exploiting telomerase properties.
• To provide a balanced assessment of current telomerase inhibitor therapies.

Main Methods:

• Literature review of telomeres and telomerase in cancer.
• Analysis of targeted cancer therapies including inhibitors, immunotherapies, and virotherapies.
• Critical evaluation of the current status of telomerase inhibitors.

Main Results:

• Telomerase is a nearly universal cancer marker and essential for cancer cell proliferation.
• Targeted therapies like telomerase inhibitors, immunotherapies, and virotherapies are under development.
• Current telomerase inhibitors show promise but have limitations.

Conclusions:

• Telomerase is a validated target for cancer therapy due to its selective expression in cancer cells.
• Exploiting telomerase offers a strategy for developing targeted cancer treatments with potentially fewer side effects.
• Further research and clinical evaluation are needed for telomerase-based therapies.