Involvement of extracellular vesicles in the macrophage-tumor cell communication in head and neck squamous cell carcinoma


Autoři: Àngela Maria Bellmunt aff001;  Laura López-Puerto aff002;  Juan Lorente aff001;  Daniel Closa aff002
Působiště autorů: Otolaryngology Department, Hospital Vall d’Hebron, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain aff001;  Department of Experimental Pathology, Institut d’Investigacions Biomèdiques de Barcelona, Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain aff002
Vyšlo v časopise: PLoS ONE 14(11)
Kategorie: Research Article
doi: 10.1371/journal.pone.0224710

Souhrn

Background

Exosomes are cell-derived vesicles that mediate cellular communication in health and multiple diseases, including cancer. However, its role in head and neck cancer has been poorly defined. Here, we investigated the relevance of exosomes in the signaling between larynx cancer cells and macrophages.

Methods

Exosomes from THP1 macrophages and BICR18 cells (a larynx squamous cell carcinoma cell line) were purified and their role in the cancer cell migration, macrophage phenotype and immunosuppressive activity was evaluated. The activation of STAT3 signal transduction in macrophages in response to exosomes obtained from cancer cells was also evaluated.

Results

Macrophages foster the cancer cell migration and this effect is mediated by exosome signaling. On the other hand, exosomes also induce the expression of IL-10 in macrophages and PD-L1 in cancer cells, thus resulting in the promotion of an immunosuppressive environment. Moreover, we observed that the effects induced in cancer cells are mediated by the exosome-depending activation of STAT-3 signal transduction pathway.

Conclusions

Our study indicates that exosomes released by both macrophages and cancer cells plays a critical role in tumor progression in larynx cancer and might be a potential target for therapeutic intervention in head and neck cancer.

Klíčová slova:

Cancer cell migration – Cancer treatment – Exosomes – Immunosuppressives – Macrophages – Secretion – Squamous cell carcinomas – Vesicles


Zdroje

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Článek vyšel v časopise

PLOS One


2019 Číslo 11