Intercellular Transfer of Cancer Drug Resistance Traits by Extracellular Vesicles

Diana Sousa, Raquel T. Lima, M. Helena Vasconcelos*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

138 Citations (Scopus)

Abstract

Extracellular vesicles (EVs) are nanosized particles (100-1000. nm) enclosed by a phospholipid bilayer that have been described as important mediators of intercellular communication. The role of EVs in oncobiology has been extensively studied, including their contribution to the horizontal transfer of drug resistance from drug-resistant to drug-sensitive cancer cells. This review focuses on the EVs cargo responsible for this intercellular transfer of drug resistance; namely, drug-efflux pumps, miRNAs, long noncoding RNAs (lncRNAs), and other mediators. Additionally, the known molecular mechanisms and features of this transfer are discussed. This is an emerging area of research and we highlight topics that need to be further studied to fully understand and counteract the intercellular transfer of drug resistance mediated by EVs. EVs shed by drug-resistant (donor) cells contribute to the dissemination of CDR by transferring their cargo to drug-sensitive (recipient) cells.The cargo of the drug-resistant EVs may be selectively packaged and may include drug-efflux pumps, miRNAs, or lncRNAs.The drug-efflux pumps transferred by EVs to drug-sensitive cells are functional in the recipient cells.Drug-efflux pumps carried by EVs may be responsible for the sequestration of drugs in those EVs.EVs may protect miRNAs from the action of RNase.

Original languageEnglish
Article number1063
Pages (from-to)595-608
Number of pages14
JournalTrends in Molecular Medicine
Volume21
Issue number10
DOIs
Publication statusPublished - 1 Oct 2015
Externally publishedYes

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