EPIGENETIC ALTERATIONS DRIVING ONCOGENESIS IN HEAD AND NECK SQUAMOUS CELL CARCINOMA.

To the Editor, Head and neck squamous cell carcinoma (HN- SCC) accounts for about 600,000 new cases globally every year and stands the sixth most common cancer, arising from the squamous epithelium. It is localized in the head and neck area involving oral cavity, pharynx, and larynx. Despite the rigorous therapy, the 5-year overall survival remains poor in HNSCC and has not changed appreciably in the last 30 years. The majority of patients develop resistance to chemotherapeutic agents, and cancer progression occurs. Cetuximab, which targets the epidermal growth factor receptor, and pembrolizumab, an anti-programmed-death ligand 1 antibody, are among few FDA-approved medications. Current therapies are poor and cause severe long-term toxicity, which has a long-term impact on the quality of life [1].......