Telomerase and its potential for therapeutic intervention.

Area of Science:

• Oncology
• Molecular Biology
• Biochemistry

Background:

• The enzyme telomerase maintains telomere length, enabling indefinite cancer cell proliferation.
• Cancer cells often have shorter telomeres than normal cells, suggesting increased susceptibility to telomere replication inhibitors.
• Understanding telomere and telomerase regulation provides new therapeutic intervention strategies.

Purpose of the Study:

• To review the biology of telomeres and telomerase.
• To discuss therapeutic approaches targeting the telomere/telomerase complex.
• To explore the role of telomerase in cancer stem cells for therapeutic implications.

Main Methods:

• Review of scientific literature on telomere and telomerase biology.
• Analysis of various therapeutic strategies developed over the past decade.
• Discussion of emerging research on telomerase in cancer stem cells.

Main Results:

• The majority of human cancers express telomerase, essential for their proliferation.
• Inhibitors targeting telomerase's catalytic subunit, RNA component, telomeres, or binding proteins are under development.
• Telomerase plays a significant role in cancer stem cells, impacting therapeutic outcomes.

Conclusions:

• Telomerase and telomeres represent promising targets for novel anticancer therapies.
• Diverse strategies, including small molecule inhibitors and vaccines, are being explored to inhibit the telomere/telomerase complex.
• Targeting telomerase in cancer stem cells may offer enhanced therapeutic efficacy.