Let it be: Preserving tumor-draining lymph nodes in the era of immuno-oncology

Solid cancers often progress via metastasis to lymph nodes. Consequently, lymphadenectomy is central to stage cancers and eradicates disease spread. However, mounting evidence suggests that cancer immunotherapies drive antitumor immune responses within lymph nodes. This implies that immunotherapy, delivered with standard oncologic therapies, may require specific treatment sequencing to initiate immunosurveillance and affect primary tumor responses. As supported by recent preclinical and clinical studies, lymphatic-preserving strategies may offer the best promise for driving the next generation of breakthrough immunotherapy approaches.