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Comparative Proteomic Analysis of Extracellular Vesicles Isolated by Acoustic Trapping or Differential Centrifugation

Rezeli, Melinda LU ; Gidlöf, Olof LU ; Evander, Mikael LU ; Bryl-Górecka, Paulina LU ; Sathanoori, Ramasri LU ; Gilje, Patrik LU ; Pawlowski, Krzysztof LU ; Horvatovich, Péter LU ; Erlinge, David LU and Marko-Varga, György LU , et al. (2016) In Analytical Chemistry 88(17). p.8577-8586
Abstract

Extracellular vesicles (ECVs), including microparticles and exosomes, are submicrometer membrane vesicles released by diverse cell types upon activation or stress. Circulating ECVs are potential reservoirs of disease biomarkers, and the complexity of these vesicles is significantly lower compared to their source, blood plasma, which makes ECV-based biomarker studies more promising. Proteomic profiling of ECVs is important not only to discover new diagnostic or prognostic markers but also to understand their roles in biological function. In the current study, we investigated the protein composition of plasma-derived ECVs isolated by acoustic seed trapping. Additionally, the protein composition of ECVs isolated with acoustic trapping was... (More)

Extracellular vesicles (ECVs), including microparticles and exosomes, are submicrometer membrane vesicles released by diverse cell types upon activation or stress. Circulating ECVs are potential reservoirs of disease biomarkers, and the complexity of these vesicles is significantly lower compared to their source, blood plasma, which makes ECV-based biomarker studies more promising. Proteomic profiling of ECVs is important not only to discover new diagnostic or prognostic markers but also to understand their roles in biological function. In the current study, we investigated the protein composition of plasma-derived ECVs isolated by acoustic seed trapping. Additionally, the protein composition of ECVs isolated with acoustic trapping was compared to that isolated with a conventional differential centrifugation protocol. Finally, the proteome of ECVs originating from ST-elevation myocardial infarction patients was compared with that of healthy controls using label-free LC-MS quantification. The acoustic trapping platform allows rapid and automated preparation of ECVs from small sample volumes, which are therefore well-suited for biobank repositories. We found that the protein composition of trapped ECVs is very similar to that isolated by the conventional differential centrifugation method.

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published
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Analytical Chemistry
volume
88
issue
17
pages
10 pages
publisher
The American Chemical Society
external identifiers
  • scopus:84985896357
  • wos:000382805900035
ISSN
0003-2700
DOI
10.1021/acs.analchem.6b01694
language
English
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yes
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d8d1a1c5-222b-4a5e-bc25-30c29624850c
date added to LUP
2016-11-08 16:33:57
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2017-11-05 05:09:14
@article{d8d1a1c5-222b-4a5e-bc25-30c29624850c,
  abstract     = {<p>Extracellular vesicles (ECVs), including microparticles and exosomes, are submicrometer membrane vesicles released by diverse cell types upon activation or stress. Circulating ECVs are potential reservoirs of disease biomarkers, and the complexity of these vesicles is significantly lower compared to their source, blood plasma, which makes ECV-based biomarker studies more promising. Proteomic profiling of ECVs is important not only to discover new diagnostic or prognostic markers but also to understand their roles in biological function. In the current study, we investigated the protein composition of plasma-derived ECVs isolated by acoustic seed trapping. Additionally, the protein composition of ECVs isolated with acoustic trapping was compared to that isolated with a conventional differential centrifugation protocol. Finally, the proteome of ECVs originating from ST-elevation myocardial infarction patients was compared with that of healthy controls using label-free LC-MS quantification. The acoustic trapping platform allows rapid and automated preparation of ECVs from small sample volumes, which are therefore well-suited for biobank repositories. We found that the protein composition of trapped ECVs is very similar to that isolated by the conventional differential centrifugation method.</p>},
  author       = {Rezeli, Melinda and Gidlöf, Olof and Evander, Mikael and Bryl-Górecka, Paulina and Sathanoori, Ramasri and Gilje, Patrik and Pawlowski, Krzysztof and Horvatovich, Péter and Erlinge, David and Marko-Varga, György and Laurell, Thomas},
  issn         = {0003-2700},
  language     = {eng},
  month        = {09},
  number       = {17},
  pages        = {8577--8586},
  publisher    = {The American Chemical Society},
  series       = {Analytical Chemistry},
  title        = {Comparative Proteomic Analysis of Extracellular Vesicles Isolated by Acoustic Trapping or Differential Centrifugation},
  url          = {http://dx.doi.org/10.1021/acs.analchem.6b01694},
  volume       = {88},
  year         = {2016},
}