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Article Publish Status: FREE
Abstract Title:

Therapy resistance mediated by exosomes.

Abstract Source:

Mol Cancer. 2019 Mar 30 ;18(1):58. Epub 2019 Mar 30. PMID: 30925921

Abstract Author(s):

Teresa Bernadette Steinbichler, József Dudás, Sergej Skvortsov, Ute Ganswindt, Herbert Riechelmann, Ira-Ida Skvortsova

Article Affiliation:

Teresa Bernadette Steinbichler

Abstract:

Therapy resistance can arise within tumor cells because of genetic or phenotypic changes (intrinsic resistance), or it can be the result of an interaction with the tumor microenvironment (extrinsic resistance). Exosomes are membranous vesicles 40 to 100 nm in diameter constitutively released by almost all cell types, and mediate cell-to-cell communication by transferring mRNAs, miRNAs, DNAs and proteins causing extrinsic therapy resistance. They transfer therapy resistance by anti-apoptotic signalling, increased DNA-repair or delivering ABC transporters to drug sensitive cells. As functional mediators of tumor-stroma interaction and of epithelial to mesenchymal transition, exosomes also promote environment-mediated therapy resistance.Exosomes may be used in anticancer therapy exploiting their delivery function. They may effectively transfer anticancer drugs or RNAs in the context of gene therapy reducing immune stimulatory effects of these drugs and hydrophilic qualities facilitating crossing of cell membranes.

Study Type : Review
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Additional Keywords : Exosomes : CK(35) : AC(10)

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Sayer Ji
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