Abstract
The elective ablation of cervical lymph nodes, via surgery or irradiation, is a mainstay in the treatment of head and neck squamous cell carcinoma (HNSCC). In this setting, the decision to treat the clinically node negative neck is based upon risk analysis of various factors, primarily derived from tumour features. However, the impact of ablation of tumour-draining lymph nodes upon the tumour-immune response and immunocompetence is largely unknown. In this review we highlight recent evidence of the communication between tumour and tumour-draining lymph nodes and the fundamental importance of this axis. We will provide a perspective of how recent cancer biology discoveries may juxtapose with current treatment pathways, with potential translational line of site for future research. In particular, neo-adjuvant therapy or biomarkers from tumour-draining lymph nodes may present opportunities to preserve lymphatics and harness improved immunocompetence in HNSCC patients.
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