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Extracellular vesicles from triple negative breast cancer promote pro-inflammatory macrophages associated with better clinical outcome

26 Apr 2022Proceedings of the National Academy of Sciences

DOI : 10.1073/pnas.2107394119

Authors

Mercedes Tkach, Jessie Thalmensi, Eleonora Timperi, Paul Gueguen, Nathalie Névo, Eleonora Grisard, Philemon Sirven, Federico Cocozza, Alizée Gouronnec, Lorena Martin-Jaular, Mabel Jouve, Fabien Delisle, Nicolas Manel, Derek C. Rookhuizen, Coralie L. Guerin, Vassili Soumelis, Emanuela Romano, Elodie Segura, Clotilde Théry

Abstract

Significance

Our work uncovers mechanisms by which tumor cells impact tumor-associated macrophages in human triple-negative breast cancer. Via extracellular vesicles (EVs), these tumors promote macrophages with proinflammatory features, correlated with better clinical outcome. Our results suggest exploration of these EVs as tools, alone, or in combination with other therapies, to promote a favorable environment for the generation of anti-tumor immune responses.