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

Author:

Tkach Mercedes1,Thalmensi Jessie1,Timperi Eleonora1,Gueguen Paul1ORCID,Névo Nathalie1ORCID,Grisard Eleonora1ORCID,Sirven Philemon1,Cocozza Federico1ORCID,Gouronnec Alizée1,Martin-Jaular Lorena1ORCID,Jouve Mabel2ORCID,Delisle Fabien1,Manel Nicolas1ORCID,Rookhuizen Derek C.1,Guerin Coralie L.34ORCID,Soumelis Vassili56,Romano Emanuela1ORCID,Segura Elodie1ORCID,Théry Clotilde1ORCID

Affiliation:

1. INSERM U932, Institut Curie, PSL Research University, 75005, Paris, France

2. CNRS UMR3215, Institut Curie, PSL Research University, 75005, Paris, France

3. Cytometry Platform, CurieCoreTech, Institut Curie, Paris, F-75005 France

4. Innovative Therapies in Haemostasis, INSERM, Université de Paris, Paris, F-75006 France

5. Université de Paris, Inserm, U976 HIPI Unit, F-75006, Paris, France

6. Assistance Publique-Hôpitaux de Paris (AP-HP), Laboratoire d'Immunologie et Histocompatibilité, Hôpital Saint-Louis, F-75010, Paris, France

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.

Publisher

Proceedings of the National Academy of Sciences

Subject

Multidisciplinary

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