Three major types of EVs and their characterization
EVs classification | Size | Biogenesis | Markers | Physical methods |
---|---|---|---|---|
Microvesicles | 100–1,000 nm | Plasma membrane budding | Integrins, selectins, and CD40 | SEM, TEM, AFM, NTA, TRPS, flow cytometry |
Exosomes | 30–100 nm | Endosomal MVBs | ESCRT proteins, ALIX, TSG101, HSP90, tetraspanins (CD81, CD63, CD9), Rab proteins, flotillin | SEM, TEM, Cryo-EM, AFM, DLS, NTA, TRPS, SEA, flow cytometry |
Apoptotic bodies | 500–5,000 nm | Membrane-surrounded cell fragments | Annexin V, thrombospondin, C3b | SEM, TEM, flow cytometry |
SEM: scanning electron microscopy; TEM: transmission electron microscopy; AFM: atomic force microscopy; NTA: nanoparticle tracking analysis; TRPS: tunable resistive pulse sensing; Cryo-EM: cyro-electron microscopy; DLS: dynamic light scattering; SEA: single EV analysis; C3b: activated fragment of complement component C3: ALIX: apoptosis-linked gene 2-interacting protein X; TSG101: tumor susceptibility gene 101; HSP90: heat shock protein 90
ZW contributed to the abstract, sections 1, 2, 5.2, conclusions and Figure 1. MX contributed to the
The authors declare that they have no known competing financial interests of personal relationships that could have appeared to influence the work reported in this research paper.
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This project is financially supported by the China Scholarship Council (CSC) grant 202008320321 (MX), grant 202006250036 (JW) and grant 201806170085 (ZW), Conacyt grant 795389 (MMA), Colciencias International Scholarship Program grant 783-2017 (JAO), the Abel Tasman Talent Program of the University Medical Center Groningen (MCTA), Dutch Digestive Foundation grant WO 21-03 (SSS; HB; HM). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
© The Author(s) 2022.