Journal
ONCOTARGET
Volume 7, Issue 31, Pages 50698-50707Publisher
IMPACT JOURNALS LLC
DOI: 10.18632/oncotarget.9333
Keywords
exosome; leukemia; immunotherapy; biomarker; miRNA
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Funding
- National Research Foundation Singapore
- Singapore Ministry of Education under its Research Centres of Excellence initiative
- NMRC Clinician-Scientist IRG Grant [CNIG11nov38]
- NMRC Clinician Scientist Investigator award
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Communication between leukemia cells and their environment is essential for the development and progression of leukemia. Exosomes are microvesicles secreted by many types of cells that contain protein and RNA and mediate intercellular communication. The involvement of exosomes has been demonstrated in the crosstalk between leukemic cells, stromal cells and endothelial cells, consequently promoting the survival of leukemic cells, protection of leukemic cells from the cytotoxic effects of chemotherapeutic drugs, angiogenesis and cell migration. At the same time, exosomes can be used for the detection and monitoring of leukemia, with some advantage over current methods of detection and surveillance. As they are involved in immune response towards leukemic cells, exosomes can also potentially be exploited to augment immunotherapy in leukemia. In this review, we first describe the general characteristics of exosomes and biogenesis of exosomes. We then highlight the emerging role of exosomes in different types of leukemia. Finally, the clinical value of exosomes as biomarkers, in vivo drug carriers and novel exosome-based immunotherapy are discussed.
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