Deciphering the Functions of Telomerase Reverse Transcriptase in Head and Neck Cancer

Area of Science:

• Oncology
• Molecular Biology
• Cancer Genetics

Background:

• Head and neck cancers (HNCs) represent a significant global health burden with limited predictive biomarkers and unsatisfactory survival rates.
• Telomere maintenance, often reactivated by telomerase reverse transcriptase (TERT), plays a crucial role in cancer development.
• TERT promoter mutations are a key mechanism for telomerase activation in various cancers.

Purpose of the Study:

• To review and summarize the current evidence on TERT promoter mutations in head and neck cancer patients.
• To highlight the prevalence and clinical significance of TERT promoter mutations in HNCs.
• To discuss potential therapeutic strategies targeting telomerase in HNC.

Main Methods:

• Literature review of studies investigating TERT promoter mutations in HNCs.
• Analysis of mutation frequencies and their association with tumor characteristics and patient survival.
• Summary of current therapeutic approaches targeting telomerase.

Main Results:

• TERT promoter mutations, specifically C228T and C250T, are prevalent in HNCs, with frequencies ranging from 11.9% to 64.7%.
• These mutations are more common in oral cavity squamous cell carcinomas (SCCs) and human papillomavirus (HPV)-negative tumors.
• TERT promoter mutations have been associated with poorer survival outcomes in HNC patients.

Conclusions:

• TERT promoter mutations are significant drivers in HNC development and progression.
• Understanding TERT mutation status may aid in predicting prognosis and guiding treatment decisions for HNC patients.
• Further research into targeted therapies against telomerase holds promise for improving HNC outcomes.