Abstract：
:Tumor extracellular vesicles (EVs) mediate the communication between tumor and stromal cells mostly to the benefit of tumor progression. Notably, tumor EVs travel in the bloodstream, reach distant organs, and locally modify the microenvironment. However, visualizing these events in vivo still faces major hurdles. Here, we describe an approach for tracking circulating tumor EVs in a living organism: we combine chemical and genetically encoded probes with the zebrafish embryo as an animal model. We provide a first description of tumor EVs' hemodynamic behavior and document their intravascular arrest. We show that circulating tumor EVs are rapidly taken up by endothelial cells and blood patrolling macrophages and subsequently stored in degradative compartments. Finally, we demonstrate that tumor EVs activate macrophages and promote metastatic outgrowth. Overall, our study proves the usefulness and prospects of zebrafish embryo to track tumor EVs and dissect their role in metastatic niches formation in vivo.
journal_name
Dev Celljournal_title
Developmental cellauthors
Hyenne V,Ghoroghi S,Collot M,Bons J,Follain G,Harlepp S,Mary B,Bauer J,Mercier L,Busnelli I,Lefebvre O,Fekonja N,Garcia-Leon MJ,Machado P,Delalande F,López AA,Silva SG,Verweij FJ,van Niel G,Djouad F,Peinado H,Cadoi
10.1016/j.devcel.2019.01.014subject
Has Abstractpub_date
2019-02-25 00:00:00pages
554-572.e7issue
4eissn
1534-5807issn
1878-1551pii
S1534-5807(19)30014-0journal_volume
48pub_type
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