The biology and function of exosomes in cancer

2016 Journal of Clinical Investigation 1,833 citations

Abstract

Humans circulate quadrillions of exosomes at all times. Exosomes are a class of extracellular vesicles released by all cells, with a size range of 40-150 nm and a lipid bilayer membrane. Exosomes contain DNA, RNA, and proteins. Exosomes likely remove excess and/or unnecessary constituents from the cells, functioning like garbage bags, although their precise physiological role remains unknown. Additionally, exosomes may mediate specific cell-to-cell communication and activate signaling pathways in cells they fuse or interact with. Exosomes are detected in the tumor microenvironment, and emerging evidence suggests that they play a role in facilitating tumorigenesis by regulating angiogenesis, immunity, and metastasis. Circulating exosomes can be used as liquid biopsies and noninvasive biomarkers for early detection, diagnosis, and treatment of cancer patients.

Keywords

MicrovesiclesCarcinogenesisCell biologyBiologyAngiogenesisTumor microenvironmentMetastasisExosomeCancer cellCancer researchCancerImmune systemImmunologymicroRNABiochemistryGenetics

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Publication Info

Year
2016
Type
review
Volume
126
Issue
4
Pages
1208-1215
Citations
1833
Access
Closed

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Raghu Kalluri (2016). The biology and function of exosomes in cancer. Journal of Clinical Investigation , 126 (4) , 1208-1215. https://doi.org/10.1172/jci81135

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DOI
10.1172/jci81135