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An Adaptable Polyethylene Glycol-Based Workflow for Proteomic Analysis of Extracellular Vesicles

Part of the Methods in Molecular Biology book series (MIMB,volume 1660)

Abstract

Extracellular vesicles (EVs), including exosomes are endocytically derived nanovesicles expelled from cells that contain molecular information in the form of lipids, proteins, and nucleic acids. Transfer of this information to other cells in local or distant microenvironments facilitates cell-to-cell communication. Importantly, diseased cells release exosomes containing specific cargo that may contribute to pathology and can be harnessed for diagnostic or prognostic use. The broad potential medical utility of exosomes has fueled rapidly expanding research on understanding the composition and functions of exosomes in normal and pathological conditions. Here, we provide a complete workflow for purifying exosome-sized vesicles from biological fluids for in-depth proteomic analyses. Moreover, this polyethylene glycol-based method is efficient, highly adaptable, and compatible with a variety of downstream applications.

Key words

  • Exosomes
  • Microvesicles
  • Extracellular vesicles
  • Mass spectrometry
  • Proteomics
  • Polyethylene glycol
  • Ultracentrifuge

The original version of this chapter was revised. An erratum to this chapter can be found at DOI 10.1007/978-1-4939-7253-1_36

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Acknowledgments

Special thanks to Mark Rider for the development of the ExtraPEG protocol used in the described methods, to Xia Liu for careful editing of the methods provided, and to Marius Kostelic for the acquisition of Coomassie-stained images. This work was supported by grants from the Florida Department of Health (6AZ11 and 4BB05) and the National Institutes of Health (CA204621 and CA188941) awarded to D.G.M.

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Correspondence to David G. Meckes Jr. .

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Hurwitz, S.N., Meckes, D.G. (2017). An Adaptable Polyethylene Glycol-Based Workflow for Proteomic Analysis of Extracellular Vesicles. In: Kuo, W., Jia, S. (eds) Extracellular Vesicles. Methods in Molecular Biology, vol 1660. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-7253-1_25

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  • DOI: https://doi.org/10.1007/978-1-4939-7253-1_25

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  • Publisher Name: Humana Press, New York, NY

  • Print ISBN: 978-1-4939-7251-7

  • Online ISBN: 978-1-4939-7253-1

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