Nuclear transport of cancer extracellular vesicle-derived biomaterials through nuclear envelope invagination-associated late endosomes

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

Extracellular membrane vesicles (EVs) function as vehicles of intercellular communication, but how the biomaterials they carry reach the target site in recipient cells is an open question. We report that subdomains of Rab7+ late endosomes and nuclear envelope invaginations come together to create a sub-nuclear compartment, where biomaterials associated with CD9+ EVs are delivered. EV-derived biomaterials were also found in the nuclei of host cells. The inhibition of nuclear import and export pathways abrogated the nuclear localization of EV-derived biomaterials or led to their accumulation therein, respectively, suggesting that their translocation is dependent on nuclear pores. Nuclear envelope invagination-associated late endosomes were observed in ex vivo biopsies in both breast carcinoma and associated stromal cells. The transcriptome of stromal cells exposed to cancer cell-derived CD9+ EVs revealed that the regulation of eleven genes, notably those involved in inflammation, relies on the nuclear translocation of EV-derived biomaterials. Our findings uncover a new cellular pathway used by EVs to reach nuclear compartment.

Details

Original languageEnglish
Pages (from-to)14443-14461
Number of pages19
JournalOncotarget
Volume8
Issue number9
Publication statusPublished - Feb 2017
Peer-reviewedYes

External IDs

PubMed 28129640
PubMed PMC5362417
Scopus 85014093954
ORCID /0000-0003-1181-3659/work/142252236
ORCID /0000-0001-7687-0983/work/142253707

Keywords

Sustainable Development Goals