Metabolic Adaptation Fuels Lymph Node Metastasis.

Many cancers metastasize regionally through lymphatics before metastasizing systemically through blood vessels. However, metastasis through blood has been studied much more extensively than metastasis through lymph. Recently in Science, Lee et al. (2019) offered new insight into lymph node metastasis by showing that melanoma cells must undergo metabolic changes during this process and that it is driven by localized accumulation of bile acids.