Pre-metastatic cancer exosomes induce immune surveillance by patrolling monocytes at the metastatic niche

Abstract

Exosomes are extracellular vesicles that can favor tumor development and metastasis. Here, the authors show that cancer exosomes may also exert a suppressive function; in fact, exosomes from non-metastatic melanoma cells can lead to the recruitment of patrolling monocytes, which clear cancer cells at the pre-metastatic niche.