Different ability of multidrug-resistant and-sensitive counterpart cells to release and capture extracellular vesicles

Diana Sousa, Raquel T. Lima, Vanessa Lopes-Rodrigues, Esperanza Gonzalez, Félix Royo, Cristina P. R. Xavier, Juan M. Falcón-Pérez, M. Helena Vasconcelos*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Cancer multidrug resistance (MDR) is one of the main challenges for cancer treatment efficacy. MDR is a phenomenon by which tumor cells become resistant to several unrelated drugs. Some studies have previously described the important role of extracellular vesicles (EVs) in the dissemination of a MDR phenotype. EVs’ cargo may include different players of MDR, such as microRNAS and drug-efflux pumps, which may be transferred from donor MDR cells to recipient drug-sensitive counterparts. The present work aimed to: (i) compare the ability of drug-sensitive and their MDR counterpart cells to release and capture EVs and (ii) study and relate those differences with possible distinct fate of the endocytic pathway in these counterpart cells. Our results showed that MDR cells released more EVs than their drug-sensitive counterparts and also that the drug-sensitive cells captured more EVs than their MDR counterparts. This difference in the release and capture of EVs may be associated with differences in the endocytic pathway between drug-sensitive and MDR cells. Importantly, manipulation of the recycling pathway influenced the response of drug-sensitive cells to doxorubicin treatment.
Original languageEnglish
Article number2886
JournalCells
Volume10
Issue number11
DOIs
Publication statusPublished - 26 Oct 2021
Externally publishedYes

Keywords

  • Cancer multidrug resistance
  • Endocytic pathway
  • Extracellular vesicles

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