Functional and mechanistic analysis of telomerase: An antitumor drug target

Area of Science:

• Biochemistry
• Oncology
• Pharmacology

Background:

• Telomerase is a reverse transcriptase enzyme crucial for maintaining telomere length.
• It is highly active in most cancer cells but typically absent in normal somatic cells, making it a distinctive cancer hallmark.
• This differential expression presents a significant therapeutic window for targeted anticancer strategies.

Purpose of the Study:

• To review the pharmacological functions, mechanisms, and oncogenic roles of telomerase.
• To provide foundational knowledge on telomerase structure, function, and biogenesis.
• To identify potential drug targets for inhibiting telomerase activity in cancer therapy.

Main Methods:

• Literature review of existing research on telomerase and anticancer drug development.
• Analysis of pharmacological data on various telomerase inhibitors.
• Exploration of telomerase's role in tumor initiation, growth, proliferation, and apoptosis.

Main Results:

• Telomerase plays a critical role in tumor initiation, development, and progression.
• Numerous potential telomerase inhibitors have been identified, including natural products, synthetic small molecules, peptides, and proteins.
• Optimizing drug delivery and combination therapies can enhance the efficacy of telomerase-targeted treatments.

Conclusions:

• Telomerase is a validated and attractive target for novel anticancer drug development.
• Further understanding of telomerase structure and function will facilitate the design of more effective and rational antitumor agents.
• Combinatorial approaches involving telomerase inhibitors hold promise for improved cancer treatment outcomes.