In aggressive lymphomas, inflammatory messengers reprogram the "conductors" of the immune system, causing lymph nodes structure to collapse. A team led by Simon Haas describes in "Nature Cancer" this ...

Structure of a lymph node whose endothelial cells (green) are capturing the nanovesicles called exosomes (red) that have moved to the node from a tumor.

Tumors, such as melanoma, release nanovesicles called exosomes (gray) that travel and lodge in the lymph nodes. There they corrupt the behavior of lymph cells. The lymphatic vessels (green) branch out ...