Overview of Extracellular Vesicles, Their Origin, Composition, Purpose, and Methods for Exosome Isolation and Analysis
Abstract
:1. Introduction
1.1. Exosomes
1.1.1. Origin and Size
1.1.2. Composition
1.1.3. Biological Purpose
1.1.4. Applications and Uses
1.2. Microvesicles
1.2.1. Origin and Size
1.2.2. Composition
1.2.3. Biological Purpose
1.2.4. Applications and Uses
1.3. Apoptotic Bodies
1.3.1. Origin and Size
1.3.2. Composition
2. Isolation Methods
2.1. Ultracentrifugation Techniques
2.1.1. Differential Ultracentrifugation
2.1.2. Density Gradient Centrifugation
Rate-Zonal Centrifugation
Isopycnic Centrifugation
2.2. Size Based Techniques
2.2.1. Ultrafiltration
2.2.2. Exosome Isolation Kit
2.2.3. Sequential Filtration
2.2.4. Size Exclusion Chromatography (SEC)
2.2.5. Flow Field-Flow Fractionation (FFFF)
2.2.6. Hydrostatic Filtration Dialysis (HFD)
2.3. Immunoaffinity Capture-Based Techniques
2.3.1. Enzyme-Linked Immunosorbent Assay (ELISA)
2.3.2. Magneto-Immunoprecipitation
2.4. Exosome Precipitation
2.4.1. Polyethylene Glycol (PEG) Precipitation
2.4.2. Lectin Induced Agglutination
2.5. Microfluidic Based Isolation Techniques
2.5.1. Acoustic Nanofilter
2.5.2. Immuno-Based Microfluidic Isolation
3. Analysis of Exosomes
3.1. Physical Analysis
3.1.1. Nanoparticle Tracking Analysis (NTA)
3.1.2. Dynamic Light Scattering (DLS)
3.1.3. Electron Microscopy
3.1.4. Tunable Resistive Pulse Sensing (tRPS)
3.2. Chemical, Biochemical, and Compositional Analysis
3.2.1. Immunodetection Methods
Flow Cytometry
Western Blotting
Integrated Immuno-Isolation and Protein Analysis of Exosomes
3.2.2. Thermophoretic Profiling
3.2.3. Mass Spectrometry (MS)-Based Proteomic Analysis
Global Proteomic Approaches
Targeted Proteomic Approaches
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Isolation Technique | Recovery | Purity | Sample Volume | Time Required | Reference |
---|---|---|---|---|---|
Ultracentrifugation | 5–25% | Low | 100s of mLs | 8 h | [10] |
Density Gradient | Higher than UC | Similar to UC | up to 1 mL | 20 h | [105] |
Precipitation Kits | N/A | Low | >100 μL | Overnight | [106] |
ExoChip | N/A | N/A | <400 μL | <2 h | [107] |
Immunoprecipitation | >99% bead recovery | Higher than UC | up to 1 mL | Overnight | [10] |
ExoSearch Chip | 42–97% | Higher than UC | 20 μL | 40 min | [108] |
Acoustic Nanofilter | >80% | High | 50 μL | <30 min | [109] |
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Doyle, L.M.; Wang, M.Z. Overview of Extracellular Vesicles, Their Origin, Composition, Purpose, and Methods for Exosome Isolation and Analysis. Cells 2019, 8, 727. https://doi.org/10.3390/cells8070727
Doyle LM, Wang MZ. Overview of Extracellular Vesicles, Their Origin, Composition, Purpose, and Methods for Exosome Isolation and Analysis. Cells. 2019; 8(7):727. https://doi.org/10.3390/cells8070727
Chicago/Turabian StyleDoyle, Laura M., and Michael Zhuo Wang. 2019. "Overview of Extracellular Vesicles, Their Origin, Composition, Purpose, and Methods for Exosome Isolation and Analysis" Cells 8, no. 7: 727. https://doi.org/10.3390/cells8070727